Safe weight loss rate is 0.5–1 kg per week, achieved via a 500–1000 calorie daily deficit (NIH guidelines). This guide covers evidence-based strategies — no crash diets, no quick fixes, only what the research actually supports.
The Science of Weight Loss
Weight loss occurs when you burn more calories than you consume. 1 kg of body fat contains approximately 7,700 calories. A 500-calorie daily deficit leads to 0.5 kg loss per week — safe, sustainable, and evidence-based.
Step 1 — Calculate Your Calorie Needs
Use the Mifflin-St Jeor equation (most accurate per NIH 2005):
Women: BMR = (10 × weight kg) + (6.25 × height cm) − (5 × age) − 161
Multiply BMR by activity factor:
Sedentary: × 1.2 | Light: × 1.375 | Moderate: × 1.55 | Active: × 1.725
= TDEE (Total Daily Energy Expenditure)
Subtract 500 calories from TDEE for safe 0.5 kg/week loss.
Step 2 — Protein Targets
Protein preserves muscle mass during weight loss and increases satiety. Target: 1.2–1.6g protein per kg of body weight per day (ISSN guidelines). For a 70 kg person: 84–112g protein/day. Good sources: dal, paneer, eggs, chicken, fish, Greek yogurt.
Step 3 — What the Research Actually Shows
- Calorie deficit via portion control
- High protein diet
- Resistance training
- Regular meal timing
- 7–9 hrs sleep nightly
- Reducing refined carbs and sugar
- Crash diets (below 1200 kcal/day)
- Skipping meals
- Fat burner supplements
- Detox teas and cleanses
- Single-food diets
- Extreme cardio without strength training
Indian Diet Tips for Weight Loss
- Replace white rice with brown rice or millets (ragi, jowar, bajra) — lower glycemic index
- Add dal to every meal — high protein, high fiber, low calorie
- Use smaller roti portions + more sabzi, less gravy
- Avoid maida (white flour) products — switch to atta-based options
- Limit ghee to 1–2 tsp/day — not eliminate, as fat-soluble vitamins need it
- Eat home-cooked meals — restaurant food averages 40% more calories than home-cooked
Free Health Calculators
Use our free health calculators — BMI, BMR, TDEE, ideal weight, water intake and more. All evidence-based, no login needed.
Source: NIH, International Society of Sports Nutrition (ISSN), ICMR Dietary Guidelines 2020. Last verified: September 2026.
