Health and Nutrition Information needed for the Preparation of Food Based Dietary Guidelines
Lalita Bhattacharjee, NFPCSP, FAO Biplab K.Nandi, FAO RAP Food and Agriculture Organization of the United Nations
Nutrition and Health are
an integrated component
and cannot be separated.
Nutrition - Link between food, health and agriculture
Availability and accessibility to food of adequate quality,quantity & safety
Meeting human nutrient and nonnutrient requirements during the life cycle
Nutrition is a link … … …
FOOD
HEALTH
LIFESTYLE
ICN, WFS and Millennium The World Declaration on Summit Nutrition adopted at ICN
(1992), affirmed that”access to nutritionally adequate and safe food” is a right of every individual The Rome Declaration on World Food Security at WFS (1996) & WFS 5:YL reaffirmed access to safe and nutritious food, consistent with the right to adequate food and the fundamental right of everyone to be free from hunger”
Millennium Summit 2000 - children at the heart of poverty reduction, to halve proportion of people living on < 1 dollar/d
Major nutrition related issues to be addressed
Poverty alleviation
Ensuring food security
Combating illness and burden of disease
Overcoming gender disparity Attaining healthy environments Improving political climate
Strategies for prevention and control of malnutrition
based approaches Nutrition education and communication Food fortification Supplementation Community based actions
Food
Importance of
Micronutrients
Evidence for life course approach to chronic disease prevention
diets, physical inactivity and smoking are confirmed risk behaviours Biological risk factors of HT, obesity and dyslipidemia established as risk factors for CHD, stroke and diabetes Risk factor trends rising (especially obesity)
Unhealthy
Evidence for life course approach to chronic disease prevention
Major biological risk factors emerge and act early in life Continue to have negative impact throughout life Affect health of next generation Adequate/appropriate postnatal nutritional environment is important Interventions effective, must extend beyond individual risk factors, continue throughout life
Understanding of macronutrient functions (traditional and emerging)
Nutrient
Protein
Traditional
Need for indispensable and dispensable amino acids for protein synthesis Energy needs Associated with dietary fibre
Emerging
Bioactive peptides
Carbohydrate
Fermentable in large bowel; regulation of nutrient metabolism rate; associated with risk of NCDs Functions of n-3 and n-6 fatty acids; Cholesterol lowering effects of unsaturated fatty acids
Fat
Energy source Essential fatty acid requirements
Understanding of vitamin and mineral functions (traditional and emerging)
Folate Prevents macrocytic anemia Toxicity; interaction with Vitamin E Prevents night blindness, required for eye sight, growth, immunity Prevents cancer, heart disease, stroke, birth defects Antioxidant; cancer prevention Cell differentiation Embryonic development; carotenoids and health
Selenium Vitamin A
Zinc
Poor growth Catalytic function Impaired reproduction Structural function Regulation of gene expression; anti toxicity functions
Understanding of phytochemicals
Food component Traditional Emerging
Polyphenols
Anti nutrient ↓ digestive enzyme activity
↓ protein digestion
Anti oxidant
Protease inhibitors
Control of food intake Cancer prevention Binds bile acids; lowers plasma cholesterol Cancer prevention
Saponins
Anti nutrient
Phytic acid
Binds minerals
γ- tocopherol
Low vitamin E activity
Not converted to α tocopherol, other antioxidant function
FOOD BASED DIETARY GUIDELINES MAINTENANCE OF HEALTH
DISEASE PREVENTION
Rationale
Address the problem solving nutrition related public health issues through culturally appropriate strategies FBDGs
Translating nutrients into foods through Science
Physical Activity
Exercise (Deliberate, often strenuous)
Activity (Unintentional)
INTENT FOR DEVELOPMENT OF FBDGs
Eliminate or reduce nutrition –related health problems Practical way to reach nutritional goals of a population Consider habitual dietary pattern Universal tool in national food and nutrition policy development Nutrition education for public and specific groups Promote nutritional well being
INTENT FOR DEVELOPMENT OF FBDGs (contd.)
Assist consumers in making dietary choices for promotion of well-being and disease prevention Assist governmental agencies in development of policies to guide the implementation of nutrition interventions and educational programmes Assist agencies at national and local levels in the formulation and implementation of regulatory policies and programmes that relate to food, nutrition and health Assist health care providers in primary disease prevention efforts Guide the implementation of food, nutrition, and health goals by national and international agencies
Nutrition throughout the Life Cycle is vital
Target population for establishing FBDGs
General : Adults Specific : Pregnant and lactating women Infants, young children Elderly Vegetarians Disease conditions : Diarrhoea, CVD,Liver disease, renal disease Population characteristics: Food preferences, food consumption behaviours, religious prohibitions, culture, access to food
Foods to seen in total perspective
More than mere nutrients Complex mixture of compounds with unique chemical, physical and textural properties. Understanding of food patterns and procedures for handling foods Understanding contribution of foods to meet dietary recommendations. Understanding methods for evaluating the contribution of foods to meet dietary recommendations
Key components of FBDGs
Emphasis on: Balance Moderation Variety of food choices
Food safety
Nutrition information
nutrition data-bases Nutritional status of the population Epidemiological and prevailing dietary intake Dietary practices to be made available to identify current lacunae Suggest suitable modifications
Appropriate
Steps in development
diet related health patterns/diseases/mortality Review food consumption patterns Identify linkages between diet and health/disease Verify extent to which problem is diet related
Review
Steps in development (contd.)
national and population frameworks that affect occurrence and prevention of problems Determine health conditions, disease patterns, nutrient deficiencies/imbalances Define content and target groups for FBDGs Define purpose/goals/targets of FBDGs
Examine
Aspects related to chronic disease
chronic diseases will be manifested in later stages of life Absolute benefit for ageing individuals/populations : in changing risk factors Adopting health promoting behaviours (exercise, healthy diets) Maximize health by avoiding /delaying preventable disability
Most
FBDGs to address 3 mutually reinforcing strategies
and most immediate impact is to address risk factors in adulthood and elderly Need to be expanded as an integral part of any intervention (e.g. reduce intake of soft drinks, high energy diets) Targeted and potentially more costly ( addresses burden of disease, vulnerable groups, etc.)
Greatest
Consumer education : FBDGs
Food Based Dietary Guidelines should be used to teach the population about the importance of dietary variety and micronutrient-rich foods
Consumer education : FBDGs
The
combination at the same meal of vitamin C rich foods and iron-rich vegetable-based foods needs to be encouraged; Consumption of animal foods, even in small quantities, needs to be promoted; Drinking coffee and tea only between meals
Food Safety Concerns and FBDGs
Contaminants Contaminants entering the food chain from the environment Residues of substances used in agricultural production and processing systems
Microbiological
Food Safety Concerns in Developing Countries and FBDGs food control systems Lack of basic hygiene in food handling Food adulteration is widely practiced Uninformed consumer Limited participation in international standard setting work Difficulty in meeting international standards or standards of importing countries
Inefficient
Substantiation of nutrition/health claims
Policy implications
FBDGs need to be integrated & implemented as a component of national developmental multi sectoral policies Issues : Agriculture Environment Trade Health Nutrition
Technical solutions
Multisectoral solutions
Accessible solutions
The technical solutions
SUPPLEMENTATION: side effects and compliance problems FORTIFIED FOODS: costs for manufacturing, labelling, distribution and monitoring; IRON-RICH (NON-FORTIFIED) FOODS: limited bioavailability of Fe in many foods
INTEGRATED approaches: all the above, linked together with Food Based Dietary Guidelines and consumer education programmes
THANK YOU FOR YOUR ATTENTION !