🔥 How Many Calories Should You Eat to Lose Weight Safely?

Weight loss calorie targets are widely misunderstood. Too aggressive a deficit backfires; too conservative barely moves the needle. Here is the evidence-based middle ground.

The Foundation: Your TDEE

Before setting a deficit, you need your Total Daily Energy Expenditure (TDEE) — the calories you burn maintaining current weight. Use our TDEE calculator to find this baseline. Every weight loss calculation starts here; without it, any calorie target is a guess.

Safe Deficit Ranges

A 500 calorie daily deficit produces approximately 0.5kg of weight loss per week — widely considered the sustainable sweet spot. A 250 calorie deficit gives slower but easier-to-maintain progress at about 0.25kg/week. A 750-1000 calorie deficit accelerates loss to 0.75-1kg/week but is harder to sustain and risks more muscle loss alongside fat.

Why More Aggressive Isn't Better

Severe calorie restriction (below 1200 calories for most women, 1500 for most men) often backfires: it triggers metabolic adaptation (your body becomes more efficient, burning fewer calories), increases muscle loss alongside fat loss, and is psychologically harder to sustain, leading to rebound overeating. Research consistently shows moderate, sustainable deficits produce better long-term outcomes than aggressive crash diets.

Adjusting as You Lose Weight

As body weight decreases, TDEE decreases too — a smaller body needs less energy. This is the scientific reason behind weight loss plateaus. Recalculate your TDEE every 4-6 weeks or after losing 3-5kg, and adjust your calorie target accordingly to maintain the same deficit percentage.

What Matters Beyond Calories

While calories determine the rate of weight loss, protein intake (aim for 1.6-2.2g per kg bodyweight) preserves muscle mass during the deficit. Strength training during weight loss further protects muscle, ensuring more of the weight lost is fat rather than lean tissue. The number on the scale matters less than body composition change.