Balanced Diet
Comprehensive notes, formulas, and practice questions for Balanced Diet.
Balanced Diet
Balanced Diet
What you'll learn
- What a balanced diet means — right amounts of all nutrients for age, activity, and health.
- Components of a balanced meal for Indian diets — cereals, pulses, vegetables, fruits, milk.
- How activity level and age change food needs (child vs adult, athlete vs sedentary).
- To plan a one-day menu that includes variety and adequate nutrients (NCERT Table 2.2 style).
Key concepts
Level 1 — What makes a diet balanced
Verbal: A balanced diet provides carbohydrates, proteins, fats, vitamins, minerals, water, and roughage in proper proportions — not too much of one group.
Visual (daily plate):
| Meal part | Examples | Nutrients supplied |
|---|---|---|
| Cereals | Rice, roti, idli | Energy (carbs) |
| Pulses / milk | Dal, curd, egg | Protein, calcium |
| Vegetables & fruits | Spinach, mango | Vitamins, minerals, fibre |
| Fats (small) | Oil, ghee | Energy, fat-soluble vitamins |
Variety principle: Different foods give different vitamins — eating many colours of vegetables helps cover the list.
Level 2 — Age, activity, and meal timing
Growing children: Need more protein and energy per kg than sedentary adults.
Very active people: Need more carbohydrates and water; athletes drink more fluids.
Three meals + healthy snacks: Breakfast fuels morning; skipping meals leads to tiredness and poor concentration.
Overeating vs undereating: Both harm health — obesity from excess energy; weakness from deficiency.
Cultural diets: Indian thali can be balanced if it includes dal, sabzi, roti/rice, and curd — not only fried snacks.
Worked example
Plan a balanced lunch for a 12-year-old student.
Step 1 — Staple: 2 rotis (carbohydrates + some protein)
Step 2 — Dal (protein, minerals)
Step 3 — Mixed vegetable sabzi (vitamins, roughage)
Step 4 — Salad cucumber/tomato (vitamins, water, fibre)
Step 5 — Curd (protein, calcium, probiotics)
Step 6 — Check: all nutrient groups present ✓
Common mistakes
| Mistake | Why it happens | Fix |
|---|---|---|
| Only rice + pickle = balanced | Ignoring protein and vegetables | Add dal, egg, or curd and sabzi |
| Fruit juice replaces whole fruit | Marketing "healthy" drinks | Whole fruit has fibre; juice often has extra sugar |
| Same food every day | Habit | Rotate vegetables and pulses for vitamin variety |
| Skipping breakfast to "save time" | Morning rush | Light balanced breakfast improves focus at school |
Quick check
- Define balanced diet in one sentence.
- List four food groups that should appear across a day's meals.
- Why do growing children need more protein than elderly sedentary people?
- Is a meal of only potato chips and cola balanced? Explain.
Open the Practice tab for graded questions on Balanced Diet.
Key Takeaways (TL;DR)
- What you'll learn
- Key concepts
- Worked example
- Common mistakes
Master this topic with Drishti OS
Get unlimited mock tests, AI-powered mentorship, and complete video courses when you join.
Start Free Practice