Dietary Guidelines - Guiding Good Grub
- Aim: Promote optimal health, prevent nutrient deficiencies & non-communicable diseases (NCDs).
- Basis: Scientific evidence on nutrient needs, food availability, dietary patterns, cultural context.
- Key Indian Bodies:
- ICMR (Indian Council of Medical Research)
- NIN (National Institute of Nutrition), Hyderabad: Formulates RDAs & dietary guidelines for Indians.
- Core Recommendations (NIN):
- Eat a variety of foods; ensure balanced diet.
- Prioritize fruits, vegetables, whole grains.
- Moderate intake of edible oils; limit fats, sugar, salt.
- Ensure adequate water intake.
- Adopt healthy lifestyles: regular physical activity.
⭐ NIN recommends <5g salt per day to reduce hypertension risk.
Macronutrients RDA - Fueling the Fire
- RDAs: Daily nutrient intake meeting needs of ~98% healthy individuals.
- Energy Distribution (AMDR, Indian context):
- Carbohydrates: 45-65% (India: 50-60%)
- Proteins: 10-35% (India: 10-15%)
- Fats: 20-35% (India: 20-30%, NIN: ~25%)
)
| Macronutrient | RDA (ICMR-NIN 2020) | Energy (Atwater) |
|---|---|---|
| Carbohydrates | ~130g min; 50-60% energy | $4 \text{ kcal/g}$ |
| Proteins | 0.83g/kg/d; 10-15% energy | $4 \text{ kcal/g}$ |
| Fats (Total) | 20-30% energy (e.g. ~60g/2000kcal) | $9 \text{ kcal/g}$ |
| - SFA | <10% energy | |
| - PUFA | 6-11% energy (n-6: 5-8%, n-3: 0.6-1.2%) | |
| - MUFA | 10-15% energy | |
| - Trans Fats | <1% energy |
Micronutrients RDA - Tiny Titans' Tasks
| Nutrient | RDA (Adult Avg.) | Deficiency (India Focus) | Notes/Excess |
|---|---|---|---|
| Vit A | 700-900 mcg RAE | Night blindness, Xerophthalmia | Teratogenic (excess) |
| Vit D | 15 mcg (600 IU) | Rickets, Osteomalacia (common despite sun) | Hypercalcemia |
| Vit B12 | 2.4 mcg | Megaloblastic anemia (vegetarians ↑risk) | - |
| Folic Acid | 400 mcg DFE | Megaloblastic anemia, NTDs (Pregnancy: 600 mcg) | Masks B12 deficiency |
| Iron | 8-18 mg (M/F) | IDA (Hb <11-13); (Pregnancy: 27 mg) | Hemochromatosis |
| Iodine | 150 mcg | Goiter, Hypothyroidism (Salt Iodization) | Iodine-induced hyperthyroidism |
⭐ Iron requirements during pregnancy increase significantly to 27 mg/day, primarily for fetal and placental growth, and to expand maternal red cell mass.
Plate & Populations - Thali Tales
- NIN's 'My Plate for the Day': A visual tool for balanced Indian diets.
- ½ plate: Fruits & Vegetables (diverse, seasonal).
- ¼ plate: Cereals & Millets (prioritize whole grains).
- ¼ plate: Protein sources (pulses, legumes, eggs, fish, lean meat, milk/curd).
- Fats, Oils & Sugars: Consume sparingly.
- Core Tenets: Emphasize variety, moderation, portion control, and adequate hydration.
- Key Population Considerations:
- Pregnancy: Additional ~350 kcal/day (2nd trimester), ~450 kcal/day (3rd trimester); increased Iron, Folic Acid, Calcium.
- Elderly: Nutrient-dense, easily digestible foods; adequate protein, Calcium, Vitamin D.
⭐ ICMR recommends a daily intake of at least 400g (approximately 5 servings) of varied fruits and vegetables for adults to prevent chronic diseases.
High‑Yield Points - ⚡ Biggest Takeaways
- ICMR guidelines emphasize balanced diets: adequate cereals, pulses, fruits, vegetables.
- My Plate for the Day (ICMR) guides portion sizes for Indian meals.
- Limit saturated fats <10% & trans fats <1% of total energy.
- Salt intake should be <5g/day; sugar intake <10% of total energy.
- Address common micronutrient deficiencies: iron, vitamin A, iodine, vitamin D.
- RDA aims to meet nutrient needs of ~97-98% healthy individuals.
- Energy distribution: Carbohydrates 50-60%, Proteins 10-15%, Fats 20-30%.
Continue reading on Oncourse
Sign up for free to access the full lesson, plus unlimited questions, flashcards, AI-powered notes, and more.
CONTINUE READING — FREEor get the app
