How to Use TDEE for Weight Loss
Weight loss comes down to one principle: a sustained calorie deficit. To create that deficit reliably, you first need to know your Total Daily Energy Expenditure (TDEE) — the calories you burn each day. This guide shows you how to go from your TDEE to a fat-loss plan you can actually stick to.
Know exactly how many calories your body burns each day.
Step 1: Find Your TDEE
Start by calculating your maintenance calories with our TDEE calculator. This is the number of calories that keeps your weight stable. Everything else is built relative to it.
Step 2: Set a Sensible Deficit
Subtract 10–20% from your TDEE. A 500-calorie daily deficit produces roughly 0.45 kg (1 lb) of fat loss per week — a sustainable, evidence-based rate. Aggressive deficits (more than 25%) accelerate muscle loss, tank your energy, and are hard to maintain. Slower is almost always better for keeping the weight off.
Step 3: Protect Muscle With Protein
In a deficit your body can burn muscle as well as fat. Eating enough protein — typically 1.6–2.2 g per kg of bodyweight — plus doing resistance training preserves lean mass so the weight you lose is mostly fat. Calculate your target with our protein intake calculator and split the rest of your calories with a macro calculator.
Know exactly how many calories your body burns each day.
Step 4: Track and Adjust
Weigh yourself several times a week and average the readings. If you're not losing after 2–3 weeks, reduce intake slightly or increase activity. Remember that TDEE falls as you get lighter — a target that worked at the start will eventually need lowering. This is normal, not a failure.
Avoiding Plateaus
Plateaus usually come from a shrinking TDEE, looser tracking, or reduced daily movement (NEAT). Recalculate your calorie target periodically, keep step counts up, and consider short maintenance breaks to support adherence and hormones during longer diets.
Frequently Asked Questions
+How big should my deficit be?
Aim for 10–20% below your TDEE — around a 500-calorie daily deficit for most people, which yields roughly 0.5 kg of fat loss per week.
+Why have I stopped losing weight?
Your TDEE drops as you lose weight, and tracking often drifts. Recalculate your target, tighten measurements, and keep daily movement high.
+Will a bigger deficit help me lose faster?
Briefly, but aggressive deficits cause muscle loss, fatigue, and rebound eating. A moderate deficit is more effective long term.
Conclusion
Sustainable weight loss starts with your TDEE, applies a moderate deficit, protects muscle with protein, and adjusts as your body changes. Nail those four steps and fat loss becomes predictable instead of frustrating.
Know exactly how many calories your body burns each day.