Nutritional Medicine for NHS Practitioners Dr Alan Stewart MRCP www.stewartnutrition.co.uk What I will address • Some basic concepts • How deficiencies develop • Making a.
Download ReportTranscript Nutritional Medicine for NHS Practitioners Dr Alan Stewart MRCP www.stewartnutrition.co.uk What I will address • Some basic concepts • How deficiencies develop • Making a.
Nutritional Medicine for NHS Practitioners Dr Alan Stewart MRCP www.stewartnutrition.co.uk
What I will address
• Some basic concepts • How deficiencies develop • Making a nutritional diagnosis • Simple dietary assessment • Common health problems: - undernutrition and overnutrition • Correcting micronutrient deficiencies using BNF listed supplements
The Three Types of Nutrition-Related Disease • • •
Undernutrition
protein-energy – low BMI, malnutrition anaemia – iron, folate, vitamins B12, B2, C, A and copper osteoporosis – calcium, vitamin D, physical activity micronutrient deficiencies - many
Overnutrition
energy – obesity, high BMI and disease risk protein (animal) – osteoporosis, renal disease sodium – high BP/stroke, heart failure and osteoporosis micronutrient excess – diet, supplement use or disease
Poor Food Choices
lack of protective foods – vascular disease, cancer and others intolerance/allergy – eczema, IBS, migraine, arthritis foods with therapeutic effects – ginger - migraine, sugar - pain
All-cause mortality and BMI
data from 900,000 people Europe and N. America
64 32 Annual deaths per 1000 16 & 95% CI (floated so matches PSC rate at ages 35-79) 8 Male Female 4 15 20 25 30 35 40 50 Baseline BMI (kg/m 2 )
Adjusted for age, smoking and study; 1 st 5 years of follow-up excluded Fig 2, Lancet 2009; 373: 1083-96
All-cause mortality and BMI by smoking status
Male (35-69 years) Female (35-69 years) 20 20 Current cigarette smoker 15 Annual deaths per 1000 10 & 95% CI (floated so matches EU rate at ages 35-69) 5 Never smoked regularly 15 10 5 Current cigarette smoker Never smoked regularly 0 15 20 25 30 35 50 0 15 20 25 30 35 Baseline BMI (kg/m 2 )
Adjusted for age and study; 1 st 5 years of follow-up excluded
50
Webfig 7a & b, Lancet 2009; 373: 1083-96
BMI and Cause-Specific Mortality Prospective Studies Collaboration Lancet 2009;373:1083-1096
BMI kg/m 2 Survival Effect Change in Disease Risk
35-45 30-35 25-30
22.5-25.0
<22.5
-5 to -10 years -2 to -4 years 0 to -2 years
Healthy norm
0 to -5 years
Overall mortality +30% Vascular +40% Diabetic +120% Renal + 60% Hepatic +80% Cancer +10% or more Respiratory +20% or ? protection Ideal is perhaps 21-27.5 kg/m 2 Smoking related illness Respiratory ++ Micronutrient deficiencies
Undernutrition Syndromes • Protein-energy deficiency • Anaemia and associated nutrients • Iron: fatigue and minor symptoms, cardiac and renal failure • Vitamin B12: neurological health • Vitamin B1 (alcohol XS): neurological problems/cardiac failure • Vitamin B2: anaemia and hypertension • Vitamin C (smoking): increased stroke risk • Vitamin D: musculo-skeletal health, immunity, major illness • Zinc: poor growth, reduced immunity, poor wound healing • Other nutrients: pregnancy, anaemia, immunity, mental health
Undernutrition and Life Functions: MRSNERG-D •
M
ovement •
R
espiration Bone Fracture Anaemia, muscle fatigue •
S
ensitivity
•
N
utrition
•
E
xcretion •
R
eproduction •
G
rowth Neuropathy, visual loss, mood Loss of appetite Liver/Renal Disease Miscarriage, NTD pregnancy Low birth weight, infant stunting •
D
efence Infection – respiratory, GI, GU
Overnutrition Syndromes • Energy (CHO, fats and alcohol): obesity • Energy-Protein (hospital): re-feeding syndromes - various • Sugars: dental caries, irritable bowel syndrome, gout • Animal Protein: gout, osteoporosis, renal disease • Iron: haemochromatosis, liver disease • Vitamin A: osteoporosis • Vitamin A/beta-carotene: cancer risk in smokers and asbestos • Vitamin B: cancer growth • Vitamin C: oestrogen metabolism • Trace element excess: fatigue, CNS problems, poor immunity
Nutritional Support in Adults [www.nice.org.uk/CG032 February 2006] • • • Screen all patients to identify those most at risk of being deficient:
Underweight
A body mass index (BMI) of less than 18.5kg/m 2
Unintentional Weight Loss
Greater than 10% within the last 3 – 6 months
or Combination of:
BMI of less than 20kg/m 2 and Unintentional weight loss >5% within the last 3 – 6 months
Others at risk:
• Eaten little or nothing (or likely to) for more than 5 days • Poor absorption, vomiting, high losses, increased need - catabolic • Already identified with one deficiency e.g. anaemia or osteoporosis
How Do Nutritional Deficiencies Develop?
Adapted from Brin M 1964 • Adequacy • State of Negative Balance • Decline in Tissue Stores • Loss of Function: 1. Symptoms 2. Physical Signs 3. Organ Failure • Death
Develop over variable amount of time in a recognizable sequence
Why Do Nutritional Deficiencies Develop?
Adapted from Brin M 1964 • • Adequacy
State of Negative Balance: 1. Poor Intake
Diet + supplements
2. Reduced Absorption
Coeliac, IBD & diet factors
3. Increased Losses
Diarrhoea, menstruation
4. Increased Demand
Pregn’cy, illness + recovery
5. Altered Metabolism
Alcohol, drugs, illness, age genetic factors • Decline in Tissue Stores • Loss of Function: 1. Symptoms 2. Physical Signs 3. Organ Failure • Death
Nutritional Excesses Develop in a Similar Way • • Adequacy
State of Positive Balance: 1. High Intake
Diet + supplements
2. Increased Absorption
Haemochromatosis
3. Reduced Losses
Post-menopause
4. Reduced Demand
Elderly
5. Altered Metabolism
Alcohol, drugs, illness, age genetic factors • Increase in Tissue Stores • Loss of Function: 1. Symptoms 2. Physical Signs 3. Organ Failure • Death
Nutrition Surveys in UK 1980-present (years surveys were conducted) • • • •
Diet and Nutrition Survey of British Adults (16-64yr)
1986/7
National Diet and Nutrition Surveys x 4 (1.5 – 85+yr)
1990-2004
Low Income Diet and Nutrition Survey (1.5 – 85+yr)
2006/7
NDNS Rolling Programme (1.5 – 85+yr)
2010 - present •
NDNS Young People (6-18 mo)
2013?
What do National Nutritional Surveys Survey?
http://www.food.gov.uk/science/dietarysurveys/
Stage Survey Component
• •
State of Adequacy State of Negative Balance
1. Poor intake 2. Reduced absorption 3. Increased losses 4. Increased requirement 5. Altered metabolism
Diet 4-7 days + Supplement use Alcohol intake and drugs Tests – blood and urine
• • •
Decline in Tissue Stores Loss of Function:
1. Symptoms 2. Physical Signs 3. Organ Failure
Death NDNS 65+ Depression BMI, NDNS 4-18 Growth NDNS 65+ Renal and Liver NDNS 65+ only
• •
Prevalence of Inadequate Micronutrient Intakes
Calcium Potassium Magnesium Iron Zinc Vitamin A Vitamin B12 Folate Vitamin C
Infants Children Adults F-Living Elderly Institution Elderly “LRNI – an amount of the nutrient that is enough for only the few people in a group who have low needs”. <3% of the population Low iron intakes are observed in 33% of women of menstruating age
The Prevalence of Anaemia: NDNS X 4
30% 25% 20% 15% Male Female 10% 5%
• • • •
0% 1.5-2.5yr
4-6yr 15-18yr 35-49yr 75-84yr Institution 85+yr World Health Organisation Normal Ranges; 1.5-6.0 yrs >11.0g/dl, adult women >12.0g/dl, adult men >13.0g/dl. Adult ranges have been adopted from ages 15yrs and upward British laboratories often use a normal range of >11.5g/dl for adult women Levels of 11.5-11.9g/dl in women can indicate symptomatic iron deficiency
The Causes of Anaemia: Age Variations
30% 25% 20% 15% 10% 5% Male Female 0% 1.5-2.5yr
Poor Diet 4-6yr 15-18yr Poor Diet 35-49yr 75-84yr Poor Diet Institution 85+yr Reduced Absorption Menstrual Losses - diet – tea/tannins GI Blood Loss Reduced Absorption Disease/ Unknown - disease - diet and disease Mixed Deficiencies
1. History
Diagnosing Malnutrition
2. Physical Examination 3. Laboratory Investigation
1. History
Diagnosing Malnutrition
2. Physical Examination 3. Laboratory Investigation
Intake: diet + supplements Risk Factors for deficiency Symptoms of deficiency Anthropometric Measures (Body Mass Index - kg/m 2 ) Signs of Deficiency Signs of Underlying Disease Blood and Urine Tests Bone Mineral Density X-Ray
Simple Dietary Assessment – use Food-Based Dietary Guidelines • • • • •
Protein –animal/vegetarian Fish and oily fish Fruit and Vegetables Quality Carbohydrates Dairy or quality substitute
• • • •
Alcohol Salt (sodium) Sugar NMES (non-milk extrinsic sugars) Fat
Simple Dietary Assessment
Assess by interview and description of typical week day’s diet or from dietary questionnaire Five Main Food Groups
• Protein –animal/vegetarian • Fish and oily fish • Fruit and Vegetables • Quality Carbohydrates • Dairy or quality substitute
Four Main Undesirables
• Alcohol • Salt (sodium) • Sugar NMES (non-milk extrinsic sugars) • Fat
Food-Based Dietary Targets Nutritional Significance • • • • •
Protein –animal/veget. - Protein, vit B, Fe, Zn Fish - Protein, vit B12, n-3 EFAs Fruit and Vegetables - Vit C, K, Mg, fibre Quality Carbohydrate - Energy, fibre, vit B, Mg Dairy or substitute - Protein, Ca, I 2 vit B12, B2 A
• • • •
Alcohol <21/14 units/wk Assess units/week Salt (sodium) <6g/day 80% in savoury food Sugar <11% energy 80% in foods & drinks Fat <35% energy Meat, dairy, cakes, pastry biscuits etc
Dietary Assessment – 5 Food-Based Targets WHO/EU/FSA Food-based dietary guidelines
Protein (animal or vegetarian)
7 Good Portions/week
Fish
>2 Portions/week >1 Oily type/week
Fruit and Vegetables Dairy Foods (or soya substitute) Quality Carbohydrate (High Fibre)
>5 Portions/day >1.5-2.5 Portions/day >1-4 Portions/day
12-24g/day
Definition of Quality Carbohydrate Target 1-4 portions/day
Yes
• Wholegrain (wheat, oat or other) breakfast cereal • Wholemeal bread • White bread (UK fortified) • Fresh potato especially with skin • Brown rice or brown pasta • Chappati
No
• White pasta • White rice • Pizza • Noodles
Nutrients in Starchy Foods: “Prizza” vs. Potato Percentage of adult female Estimated Average Requirement by 120 g
70.00% 60.00% 50.00% 40.00% 30.00% 20.00% 10.00% White Pasta White Rice Pizza Margharita Jacket Potato 0.00% Protein Pot'm Mag'm Iron Vit B1 Vit B3 Folate Vit C
Alcohol: do doctors know their units?
1 unit = 8g alcohol; ~10 units to a bottle of wine • • • •
Advised Limits Men <21u/wk Women <14 u/wk No alcohol 2-3 days/wk None in pregnancy
Prevalence of High Alcohol Consumption
>21/14 units/week NDNS Data
60% 50% 40% 30% Male >3u Female >2u 20% 10% 0% 15-18yr 19-24yr 25-34yr 35-49yr 50-64yr 65-74yr 75-84yr 85+yr
Alcohol Intake and All Cause Mortality
Alcohol Intake and Stroke Risk
Assessment of Alcohol and Sugar in Adults •
Alcohol - 50% exceed safe limits - suspect if:
- overweight especially abdominal obesity - high blood pressure - raised triglycerides – uncontrolled - depression, mood change, insomnia - abnormal liver function tests - raised uric acid or gout •
Sugar - 50% of adults exceed target - suspect if:
- overweight especially age <30 yrs - poor dental health - poorly controlled diabetic - lower-socioeconomic group - non-alcohol consumer - high intake of sweet foods/added sugar
Simple Assessment of Salt & Fats in Adults •
Salt - 80% of adults exceed target - suspect if:
- high BP - heart failure - fluid retention - high intake of savoury foods/snacks •
Fats - (saturated and trans) 50% exceed - suspect if
- overweight - high cholesterol or vascular disease - high intake of meat, processed meat, butter, full-fat dairy - high intake of hard margarine cakes, pastry (trans fats)
Simple Dietary Assessment: what you learn • • • • •
Protein Fish Fruit and Vegetables Quality Carbohydrate Dairy or substitute
• • • •
Alcohol Salt Sugar Fat (saturates & trans)
• • •
They provide 60-70% of all micronutrients Achieving all targets = good nutrient intake lower health risks But doesn’t guarantee nutritional adequacy
• • •
Displace nutritious foods Excessive Intakes = anti-nutrient effects increased risk of obesity increased health risks Considerable individual variation in effect
Nutritional Assessment - Risk Factors NICE guidelines www.nice.org.uk/cg032 (2006) • Fragile skin • Poor wound healing • Apathy • Wasted muscles • Poor appetite • Altered taste sensation • Impaired swallowing • Altered bowel habit • Loose fitting clothes • Prolonged illness: chronic infection, chest disease, cardiac failure, cancer etc.
Nutritional Assessment - Risk Factors NICE guidelines www.nice.org.uk/cg032 (2006) and others • Fragile skin • Poor wound healing • Apathy • Wasted muscles • Poor appetite • Altered taste sensation • Impaired swallowing • Altered bowel habit • Loose fitting clothes • Prolonged illness: chronic infection, chest disease, cardiac failure, cancer etc.
• • • • • • • •
Life Stage:
- extremes of age - adolesence - pregnant/breastfeeding
Social Circumstances:
- in receipt of benefits - living alone – especially men
Medical History:
- chronic illness/organ failure - heavy periods
Family History/Genetic Factors Medical Drug Use Poor mobility/lack of sun Smoking Symptoms and Physical Signs
Benefit Status and Micronutrient Intake
Percentage of Male Population 19-64 yrs with deficient intake, 51% 48% 45% 42% 39% 36% 33% 30% 27% 24% 21% 18% 15% 12% 9% 6% 3% 0% Vit A B1 Men No Benefits n=724 Men Benefits n=110 B2 B3 B6 B12 Fol Vit C Fe Ca P Mg K Zn I Data from National Diet and Nutrition Survey British Adults. TSO 2003/4 Dietary Reference Values for Food Energy and Nutrient for the UK. HMSO 1991 Percentage of Female Population 19-64 yrs with deficient intake, 51% 48% 45% 42% 39% 36% 33% 30% 27% 24% 21% 18% 15% 12% 9% 6% 3% 0% Vit A B1 Women No Benefits n=741 Women Benefits n=150 B2 B3 B6 B12 Fol Vit C Fe Data from Ref: Ca P Mg K National Diet and Nutrition Survey British Adults. TSO 2003/4 Zn I Dietary Reference Values for Food Energy and Nutrient for the UK. HMSO 1991 Low Income Diet and Nutrition Survey (2006/7) • • Sample of ~2000 people aged 2 to 85+ yrs • Household where >1adult in receipt of one or more benefits Increased risks of: - obesity - physical inactivity - smoking - alcohol excess – slightly in women only but not men • • Poorer intakes and status of: - folate - vitamin C - vitamin D - not iron and anaemia • Causative factor: more lack of education rather than money Dietary solution costs ~ £7:00/week: fresh potatoes, DGLV (see lecture – dark green leafy vegetables, fruit, eggs and tinned oily fish www.stewartnutrition.co.uk for detail) Nutritional Assessment: the Whole Picture history is the most informative element Element History Examination Investigation Nottingham 1975 82.5% W. Virginia 1992 76% 8.75% 12% 8.75% 11% • Both studies assessed new patients, with no clear diagnosis, who were referred to a medical clinic • Studies assessed what key element was required to reach the final diagnosis • References Hampton JR et al. BMJ. 1975;2:486-9 Peterson MC et al. West Med J. 1992;156(2):163-5 Common Nutritionally-Related Problems (QOF Clinical Domain and Additional Services Points) • • Heart Disease Prevention (2) • Coronary Heart Disease (10) Heart Failure (4) • Hypertension (3) • • • • • Stroke and TIA (8) Depression (3) Mental Health (6) Dementia (2) Chronic Kidney Disease (5) • • Cancer (2) Osteoporosis (? in 2013) • • Maternity (1) Child Health Surveillance (1) • Anaemia (0) • Low BMI/Wt Loss (0) Lifestyle, vit B1 Lifestyle, vit B2 Folate Folate Folate + vit B12 Many Caution with vitamins Ca + vit D, avoid vit A XS Lifestyle, folic acid, vit D Healthy diet, surestart, Zn • Sodium restriction if oedema, unintentional wt gain • Alcohol restriction – cardiac depressant • Optimum weight • • Regular exercise • Diet – adequate protein, easy to digest, • Good intakes of K and Mg – potato, vegetable soup • Correct anaemia and iron deficiency Correct thiamin deficiency Micronutrient Deficiencies in Heart Failure Soukoulis V. et al. J ACC 2009;54:1660-73 • Some micronutrient deficiencies are common • Some nutrients are important for energy production and muscle function • Thiamin - vit B1, n-3 EFAs, CoQ10, L-carnitine amino acids, taurine, Fe, K and Mg • Trials of some show benefit • Further trials of targeted appropriate nutrition support needed Thiamin deficiency and heart failure Dr Paul Wood: UK Cardiologist 1968 • “Here is one of the fatal forms of heart disease which is curable” • Foods: bread, meat, breakfast cereals • Clinical Features: alcohol XS – CNS effects peripheral neuropathy cardiac failure + tachycardia calf muscle tenderness • No oral/skin signs • Test: RBC transketolase activation coefficient Erythrocyte Transketolase Activation Coefficient >1.25 NDNS 30% 25% 20% Male Female 15% 10% 5% • • • 0% 4-6yr 7-10yr 11-14yr 15-18yr 19-24yr 25-34yr 35-49yr 50-64yr 65-74yr 75-84yr 85+yr Inst 65 84yr Inst 85+yr ETKAC - measures the increase in stimulation of a vitamin B1 dependent enzyme following the addition of vitamin B1 in the laboratory A high level ( >1.25) indicates pre-existing biochemical deficiency ETKAC was not measured in infants age 1.5 to 4.5 yrs Treating Patients with Vitamin B1-Thiamin Deficiency • • • • • Address the Cause(s) very poor diet reliant upon white rice and sugar, alcohol XS,, persistent vomiting, unintentional weight loss >5% Dietary Advice healthy eating – wholegrain cereals, pork, eggs, fish, nuts fortified foods – UK white flour/bread, some breakfast cereals Supplement with appropriate amounts of nutrient Severe deficiency (confusion, ataxia, neurological signs, heart failure) especially if alcohol XS – parenteral injections (BNF) Mild deficit/poor diet oral B1 25-100ug X 3 /day for >2 months Consider need for other nutrients Assess folate, zinc and other nutrients if alcohol XS, wt loss Many will also need vit B Co Forte x 3/day or multivitamins Once main deficiency corrected Treat >2 months or until full neurological/cardiac recovery Many need long-term vit. B (thiamin >5 mg/day) /multivitamin Caution if cancer especially if rapid growing Vitamin B2 – Riboflavin and Hypertension Wilson CP et al Am J Clin Nutr 2012:95;766-772 • 83 patients with three genotypes for MTHFR enzyme (folate metabolism) • Increased cardiovascular risk homozygous for 677C >T polymorphism • 31 with TT genotype had higher systolic BP, unresponsive to drug treatment • Given riboflavin 1.6 mg/day 2004 & 2008 • Fall in BP Sys -9.2 + 12.8 mmHg Dias -6.0 + 9.9 mmH Riboflavin Supplementation and Haematological Status Powers HJ et al. Am J Clin Nutr 2011;93:1274-84 • Several studies in pregnant women and children in developing countries have shown enhanced response to iron deficiency when riboflavin is given with iron supplements • In a trial in Sheffield involving 123 women age 19-25 yrs who were biochemically riboflavin deficient the three groups received placebo or 2 mg or 4 mg per day for 8 weeks • Both doses resulted in a modest rise in Hb with a dose response effect • Those with the poorest status (found in 20% of UK) experienced a rise of ~0.4g/dl in Hb • There was no observed increase in iron absorption and improved mobilisation from tissues is considered a possibility Treating Patients with Vitamin B2- Riboflavin Deficiency • • • • • Address the Cause(s) poor diet low in dairy foods especially full-fat, alcohol XS, unintentional weight loss >5% Dietary Advice healthy eating – milk, full-fat cheese, eggs, wholemeal bread fortified foods – some breakfast cereals Supplement with appropriate amounts of nutrient No separate supplement use vit.B Co Forte X 3 = 6 mg Yellow discolouration of urine is expected and harmless Consider need for other nutrients Assess anaemia and iron (reduced absorption) Dairy-free diet consider calcium + multivit/multimineral Consider folate, zinc and other nutrients if alcohol XS Once main deficiency corrected Treat >2 months Clearance of angular stomatitis within 4 weeks is expected Caution if cancer especially if rapid growing Angular Stomatitis/Cheilitis a Common Problem see BNF for further detail • Redness, cracking and soreness at mouth corners • Causes: - nutritional deficiency • Assessment: - dietary history • Investigation: - Full blood count - other nutrients • Nutritional Treatment – iron, riboflavin possibly other B vits. - candida or mixed bacterial infection - poorly fitting dentures or dribbling - risk factors for nutrient lack - unilateral = mechanical; bilateral = infection/nutritional - failure to clear with antifungal/bacterial = nutrient deficiency – iron, folate as indicated, vit B12 in elderly - Vit B Co Forte x 3 per day for 8 weeks and healthy diet - other supplements as indicated - expect clearance in 4-8 weeks if not reassess Effect of methylfolate 5 mg x 3/day in psychiatric in-patients with proven folate deficiency Experimentally-Induced Folate Deficiency Herbert V. Trans Assoc Am Phys.1962:75:307 • 35 year old healthy male All vegetables were triple-boiled in large amount of water • Intake estimated. <25 ug/day vs. requirement of 200ug/day • Supplements of all other B vitamins • 3 weeks – fall in serum folate • 7 weeks – white cells neutrophil hypersegmentation • 16 weeks - depression & irritability • 17 weeks - fall in erythrocyte folate • 18-20 weeks - macrocytic red blood cells, fall in haemoglobin, bone marrow – megaloblastic anaemia Prevalence of low Red Cell Folate: NDNS • • • 50% 45% 40% 35% 30% Male Female 25% 20% 15% 10% 5% 0% 1.5-2.5yr 4-6yr 15-18yr 35-49yr 75-84yr Institution 85+yr The normal ranges for red cell folate and method of analysis varied with each study; infants > 400nmol/l, children and adults > 350nmol/l and the elderly > 345nmol/l Folate status is influenced by alcohol excess and altered metabolism in the elderly Pregnant or breast feeding women were excluded from the adult NDNS Treating Patients with Folate Deficiency • • • • • Address the Cause(s) poor diet, alcohol XS, malabsorption, elderly, blood disorders Dietary Advice healthy eating – green leafy vegetables, potatoes, oranges fortified foods – some breakfast cereals Supplement with appropriate amounts of nutrient Folic acid 5 mg x 1-3/day for proven deficiency; x1/wk if MTX Pregnancy 400 ug/day but high NTD risk 5 mg/day (see BNF) Caution if cancer – may promote tumor growth ask oncologist Consider need for other nutrients Other deficiencies - vitamin B if alcohol, zinc if malabsorption poor diet in pregnancy consider prenatal multivit/multimineral Once main deficiency corrected Retest rbc folate (better than serum folate) after 2-3 months High daily folic acid may reduce zinc absorption long-term Consider long-term 400ug/day or 5mg/wk if status is poor Ulrich CM. Editorial Am J Clin Nutr 2007;86:271-3 • Low dietary intakes increase the risk of alcohol-associated breast cancer • High intakes of folic acid from supplements may increase the growth of an existing tumor • High serum vitamin B12 level associated with increased risk of advanced prostate cancer Johansson M et al Cancer Epidemiol Biomarkers Prev 2008;17(2):279-85 Hultdin J et al Int J Cancer 2004;113:819-24 • Thiamin - vit B1 is growth promoting for some cancers Langbein et al Risk Management: Cancer Warning Royal College of Radiologists/CR-UK [2006] www.rcr.ac.uk/docs/oncology/pdf/HerbalSupplementsFINALVERSION.pdf Cancer Treatment, Herbal and Nutritional Supplements • Ask patients what they are taking before commencing treatment • Urge patients to seek professional supplements advice on diet and • If patients are keen take a good quality one-a-day multivitamin and mineral; do not exceed the dose • Antioxidants may reduce the effectiveness of chemotherapy; avoid their use especially high doses • Monitor and report any adverse interaction through the Yellow Card Scheme ( www.mhra.gov.uk ) Plasma <118 pmol/l - NDNS 30% Male Female 25% 20% 15% 10% 5% • • • 0% 1.5-2.5yr 3.5-4.5yr 7-10yr 15-18yr 25-34yr 50-64yr 75-84yr Institution 65-84yr A serum vitamin B12 of 118pmol/l is equivalent to 154pg/ml Macrocytosis (MCV >101fl) was seen in: 1-3% of teenagers, 9% of adults, 2% of free-living elderly and 3% of elderly in institutions. Macrocytosis is often due to alcohol excess and not vitamin B12 deficiency Treating Patients with Vitamin B12 Deficiency • • • • • Address the Cause(s) vegetarian/vegans, malabsorption, poor gastric acid (now the commonest cause - reduces absorption of food-derived but not supplemental forms), PPIs, pernicious anaemia - rare Dietary Advice healthy eating – protein, meat, milk, fish, eggs fortified foods some soya milks b’fast cereals, Flora Proactive Supplement with appropriate amounts of nutrient Parenteral Injections for severe deficiency (signs, anaemia or mental symptoms) or malabsorption (see NHS Direct) Mild deficit/poor diet oral B1210-50ug/day - 2 months + retest Consider need for other nutrients Vegetarian/vegans – iron, zinc, calcium: elderly Ca/vit D Once main deficiency corrected Malabsorption/severe deficiency parenterally - 2-3 months Use multivitamin if poor diet, elderly, some pregnant/lactating Caution if cancer especially prostate – reassess need • Scurvy is rare and occurs when plasma level is <3umol/l • Mild deficit, <11 umol/l, may cause depression and mood change; in the UK 25% of men and 16% of women with a low income are deficient – Mosdol A et al J Pub Hlth 2008;30:456-60 (see presentation on LIDNS on www.stewartnutrition.co.uk ) • Levels >50 umol occur as a result of eating >5 portions of fruit and vegetables daily • Good vitamin C status is associated with a lower risk of: - heart failure - Pfister R et al Am Ht J. 2011:162:246-53 - stroke - Kurl S et al Stroke 2002;33:1568-73 • The results of trials of vitamin C supplements show no reduction in such diseases but those most at risk of deficit groups were not especially targeted – males, elderly, poor diet, smokers and lower socio-economic • Consider assessing status in high risk individuals Vitamin C Prevalence of Deficiency plasma Vit. C<11.0umol/l - NDNS data 60% 50% 40% 30% Male Female 20% 10% • • • 0% 1.5 3.5yr 2.5 4.5yr 4-6yr 7-10yr 11 14yr 15 18yr 19 24yr 25 34yr 35 49yr 50 64yr 65 74yr 75 84yr 85+yr Inst 65 84yr Approx. 20% of adults and 12% of the elderly took supplements of vitamin C Inst 85+yr Approx. 25% of British adults smoke and this declines after the age of 65 years Aspirin was taken by 20% of free-living elderly and 24% of institutionalised elderly Treating Patients with Vitamin C Deficiency • • • • • Address the Cause(s) poor diet – lack of fruit, vegetables, potato and XS of pasta & rice, poor teeth/chewing, heavy smoking and asprin/NSAIDs Dietary Advice healthy eating – fresh vegetables, fruit/juice, potatoes + skins Supplement with appropriate amounts of nutrient Ascorbic acid 200 – 500 mg/day for 8 weeks Adverse effects rare: Safe Upper Levels 1000 mg Consider need for other nutrients Anaemia (iron) and folate lack are possible/likely Once main deficiency corrected If healthy diet cannot be guaranteed long term supplement 200mg/day may be needed by a few elderly, heavy smokers High doses may increase risk of cataract in steroid users, increase breast cancer risk and rarely oxalate renal stones (see Safety of Supplements www.stewartnutrition.co.uk ) • • Low Plasma Ferritin: Range < 10-20ug/l 50% 45% 40% 35% Male Female 30% 25% 20% 15% 10% 5% 0% 1.5-2.5yr 3.5-4.5yr 7-10yr 15-18yr 25-43yr 50-64yr 75-84yr Institution Normal ranges: infants age 1.5-4.5yrs > 10.0ug/l, females age >4yrs-adult > 15.0ug/l, males age >4yrs-adult > 20.0ug/l 65-84yr Plasma ferritin can be elevated by acute or chronic inflammation, infection or liver disease and is not a reliable measure of iron status in ill and elderly people Symptoms of Non-anaemic Mild Iron Deficiency Prevalence of self-reported symptoms in 11,561 white female US college entrants Hb >12.0 g/dl 50.00% 45.00% 40.00% 35.00% 30.00% 25.00% 20.00% 15.00% 10.00% 5.00% 0.00% Fatigue Not Deficient Deficient Irritabilty Frequent Headache • All Hb >12.0g/dl • Iron Deficient serum ferritin <21ug/l • Not iron deficient 616 10,945 • Analysis by Chi squared: Fatigue p= 0.0026 Irritability p= 0.003 Headache p= 0.0004 • BMJ on line 28/6/2003 Waalen J, Felitti V and Beutler E Treating Patients with Iron Deficiency • • • • • Address the Cause(s) vegetarian/vegan diet, XS tea, heavy periods, GI bleeding Dietary Advice healthy eating – red meat, liver, beans, eggs, green veg; fortified foods - white bread and some breakfast cereals Supplement with appropriate amounts of nutrient Ferrous Sulphate 200 mg 1-2/day always with fruit/juice Iron supplements must be taken 2 hrs away from tea/coffee GI upset likely if dietary advice not followed or high doses Prolonged use may reduce zinc absorption Consider need for other nutrients Vit B2 lack and rarely vits C, A and copper cause iron lack Give Vit. B Co Strong x 2/day or Forceval x 1/day as needed Once main deficiency corrected Retest (Hb and ferritin) after 2 months Continue supplements for 3 months to replenish stores Chronic menorrhagia -iron x 1/day for 7 days/cycle with period NHS Multi-vitamins/minerals: not a great choice Prescribable for the treatment of proven deficiencies or their prevention in those at significant risk of undernutrition (see BNF) • • • • • Vitamin Tablets vitamins A, D, C, B1, B3, B2 v. low doses, (no folic acid/B12) Based on formulation from 1940s of a free sample from US govt. see Bransby ER BMJ 15 th Jan 1944 p77. Vit B Tablets Compound and Compound Strong vitamins B1, B2, B3, (B6 – strong only) Liquid ABIDEC and DALIVIT drops vitamins A,D, C and some B suitable for some infants Ketovite tablet - vitamins C, B, E, K; liquid vitamins A, D 2 and B12 Forceval Adult and Junior RDA amounts of vitamins and trace elements Useful but avoid in cholestatic liver disease (Mn XS) and caution in osteoporosis (vit A XS) Healthy Start Vitamins: a step in the right direction see www.healthystart.nhs.uk • • Children’s Vitamin Drops would help address poor vitamin status in infants; does not contain iron but iron absorption will be enhanced by vitamin C. Daily dose of 5 drops provides: - vitamin A 233 ug (for growth and immunity) - vitamin C 20 mg (for bones, immunity and iron) - vitamin D 7.5 ug (for bones, teeth and immunity) Take from 6 months until their 4 th birthday. Not needed if consuming 500 ml of formula milk per day Vitamins for Women would help fulfil increased needs in pregnancy. Contains - folic acid 400 ug (fetal nervous system development) - vitamin D 10 ug (calcium absorption, skeletal development) - vitamin C 70 ug (healthy tissues and aids iron absorption) For pregnant women until their child is 1 yr old Percentage of Population with a plasma Retinol < 0.7/75 umol/l 20% 18% 16% 14% 12% 10% 8% 6% 4% 2% 0% 1.5 3.5yr 4-6yr 11 14yr Male Female 19 24yr 35 49yr 65 74yr 85+yr Inst 85+yr Statement of Professor Bloch Danish Paediatrician World Dairy Congress Washington DC Oct 3 rd 1923 Retinol – vitamin A Content of Dairy Foods per 100 g: Whole Milk 55ug Semi Skimmed Milk 23ug Yakult None “No other article can replace milk. Absence of milk from the diet or inclusion of unfavourably modified milk is the origin of most serious diseases. By ordering milk, and especially cream and butter, not only is this terrible eye disease cured for infectious disease.” – which I believe will be discovered in every country when it is looked – but these dairy products are of the greatest importance for growth and development and the cure of our greatest Supplemental Milk and Growth in Orphan Boys Increase in Height in Inches in One Year Mann H C Corry (1926) Sp. Rep Ser Med Res Coun. London No. 105. 3 2.5 2 1.5 1 0.5 • • • 0 Basic Diet Water Cress Casein Veget Marg Sugar N-Z Butter Milk 219 Institutionalised orphaned boys many of whom were considered to be Increase below the standard for height and weight despite the diet being “adequate” 41 Boys were given 1 pint of whole pasteurised milk per day Additional margarine, sugar and butter were isocaloric Zinc: Prevalence of Low Intake (Diet and Supplements) < LRNI NDNS x 4 39% 36% 33% 30% 27% 24% 21% 18% 15% 12% 9% 6% 3% 0% 1.5 2.5yr 2.5 3.5yr 3.5 4.5yr 4-6yr 7-10yr 11 14yr Male Female 15 18yr 19 24yr 25 34yr 35 49yr 50 64yr 65 74yr 75 84yr 85+yr Adjusted final length (cm) by length-for-age Z-score categories at baseline and by treatment. Rivera J A et al. J. Nutr. 1998;128:556-562 ©1998 by American Society for Nutrition Lancet 2012: doi:10.1016/SO140-6736(12060477-2 • • • • • • Infants age 7-120 days in India with bacterial infection (pneumonia, sepsis, meningitis) Rx Antibiotics or Antibiotics + Zn 10 mg/day Outcome – treatment failure (change of Ab, intensive care or death) Treatment Failure Antibiotics alone Antibiotics + Zn 17% 10% 44% of babies had serum Zn <9.2 umol/l – marked deficiency Similar benefits in other studies in pneumonia and diarrhoea Treating Patients with Zinc Deficiency • • • • • Address the Cause(s) vegetarian/vegan diet, alcohol XS, malabsorption, diarrhoea Dietary Advice healthy eating – red meat, cheese, eggs, nuts and seeds Supplement with appropriate amounts of nutrient Zinc Sulphate (Solvazinc 125 mg (45 mg Children <10kg ½ tablet/day (see BNF) – elemental) 1-3/day after food away from tea/coffee, bran/chapatti GI upset more likely if taken on an empty stomach Consider need for other nutrients If malabsorption/underweight consider multivitamins and if alcohol XS Vit. B Co Strong x 3/day Once main deficiency corrected Reassess/retest after 8 weeks; target plasma Zn >10.0umol/l Sample protocol follow guidelines www.izincg.org Prolonged use (>25 mg/day) may cause Cu lack + anaemia • Loss of bone architecture mass that leads to an increased risk of fracture and • WHO - A bone mineral density measured by DEXA scan that is >2.5 SD (standard deviations) below the peak BMD in young normal adults in the lumbar spine or femoral neck, T Score • Osteopenia 1.5 – 2.5 SD below peak BMD Safety of Vitamin A: SACN Sept 2005 • • Retinol Total Safe Intake, TSI = 1500 ug/day Risk: Osteoporosis Birth Defects - common - v. rare • UK adult diet ~700 ug/day • Supplements Safe Upper Level <800 ug/day none in pregnancy • High intakes from: - food – liver, very high dairy - supplements multivits and CLO • TSI is exceeded by: - adults (19-64yrs) 6% - elderly (65+ yrs) 11% • Raised Serum Retinol: - renal impairment - alcohol excess - abdominal obesity Serum Retinol and the Risk of Fracture [Swedish men aged 49-51 yrs, 30 year cohort study] Michaelsson K et al NEJM 2003:348:287-294 Retinol Status of the British Population (estimates) Plasma Retinol Levels NDNS Data Collected 1990-2001 Deficient <0.7/0.75 umol/l Borderline 0.75-1.0 umol/l Adequate 1.0-2.8 umol/l Mild Excess 2.8-3.5 umol/l Significant excess >3.5 umol/l 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 1.5 - 4.5 yrs 4 - 18 yrs 19 - 64 yrs F-L 65+ yrs Inst 65 + yrs Vitamin D Prevalence of Deficiency - NDNS % Plasma 25-hydroxyvitamin D <25nmol/l NDNS • • • 50% 45% 40% 35% 30% 25% 20% 15% 10% 5% 0% 1.2 2.5 3.5 4-6yr 7-10yr 11 15 19 25 35 50 65 75 85+yr Inst Inst 2.5yr 3.5yr 4.5yr 14yr 18yr 24yr 34yr 49yr 64yr 74yr 84yr 65 85+yr 84yr Plasma 25-hydroxyvitamin D levels show considerable seasonal variation with mild deficiency being commonplace in late winter and spring and rare in summer Dietary sources provide approximately 10% of the body’s content of vitamin D Some laboratories adopt a lower end of normal range of 50nmol/l 25-OH D Male Female Vitamin D Prevalence of Deficiency - LIDNS Low Income Diet and Nutrition Survey Plasma 25 OH Vit D <25.0nmo/l 50% 45% 40% 35% 30% 25% 20% 15% 10% 5% 0% 1.5 3.5yr 3.5 4.5yr 4-6yr 7-10yr 11 14yr 15 18yr 19 24yr Male Female 25 34yr 35 49yr 50 64yr 65 74yr 75 84yr 85+yr Inst 65 84yr Inst 85+yr • • • • • Treating Patients with Vitamin D Deficiency Address the Cause(s) lack of sun and inactive; diet – lacking eggs/oily fish, obesity, malabsorption, renal and liver disease Dietary Advice healthy eating – eggs, meat, oily fish: wt loss if obese fortified foods – margarine, some b’fast cereals and soya milk Supplement with appropriate amounts of nutrient Ca +vit D x 1-2/day for osteoporosis (x2/day if poor diet) Vit. D 1000 iu (25 ug) OTC x 1-4/day for >3months Severe deficiency or renal disease parenteral or specialist supplements (see NHS Direct and BNF) Avoid cod liver oil/vitamin A if osteoporosis Consider need for other nutrients Calcium if low intake, young/old or osteoporosis + extra vit D Once main deficiency corrected Re-measure 25OH D after 3-6 months Target >50 nmol/l but >75 if osteoporosis Long-term oral vit D 1000 iu/day is safe and suitable for many Short Life Expectancy: Associated Nutritional Factors NDNS 65+ 17 year follow-up (60% died) Bates CJ et al 2010/11 • • • • • • • Poor grip strength (men) Low food/protein intake Poor renal function: raised Pl. HCys and Retinol Raised Hb A1c prediabetes/diabetes Inflammatory disease: raised Pl. copper (infection, cancer, liver dis) Low plasma nutrients: vit C, Alpha-carotene, B6, D (men), zinc and selenium Not Cholesterol, vit B12, folate, Hb or Beta-carotene Supplements: Who needs them? Department of Health 2011 July Version 2 (14 amendments): Revised following correspondence between Dr S and Paul Gingell DoH • all pregnant or breastfeeding women ( 5 years ( vitamin D their pregnancy ( ) • women trying to conceive and in the first 12 weeks of folic acid vitamins A, C & D ) • all children aged 6 months to ) • people aged 65 and over ( vitamin D much sun ( ) • people with darker skin or who are not exposed to vitamin D ) • Those diagnosed with a deficiency by their doctor • • • Department of Health: Publish all previous NDNS on line Clinicians involved in NDNS planning and interpretation Action group – respond rapidly to NDNS findings Education: Books to include NDNS data Basic principles to be taught from GCSE to academia Clinical Practice: Targets – for screening for undernutrition in primary care Dietary assessment – deficiency and excess Emphasise food-based dietary targets, therapeutic diets Better availability of tests with clear indications More appropriate and safer NHS nutritional supplementsBenefit Status and Micronutrient Intake
Heart Failure: Nutrition and Lifestyle
Prevalence of Vitamin B1 Deficiency
Folate/Folic Acid and Cancer Risk
Prevalence of Vitamin B12 Deficiency
Vitamin C and Health
Prevalence of Iron Deficiency - NDNS
Vitamin A Prevalence of Deficiency - NDNS
Zinc with antibiotics for babies
Osteoporosis - Definitions
Nutritional Medicine: Messages and Solutions