Lowering your BMI is straightforward in principle and hard in practice. The principle: take in fewer calories than you burn, consistently. The hard part: doing it without misery and not bouncing back two months later. Here is the sensible playbook.
Pick a slow rate
0.5 to 1 kilogram per week is the sustainable range. Faster than that and you lose more muscle along with fat, your metabolic rate drops more, and the rebound risk skyrockets.
For most adults, that translates to a 300–500 calorie daily deficit — about one less large meal, or one extra 30-minute walk, per day.
Protein protects muscle
Aim for 1.6 to 2 grams of protein per kilogram of body weight per day during a calorie deficit. This dramatically reduces muscle loss compared to lower-protein diets at the same calorie level.
Higher protein also keeps you fuller, making the deficit feel less restrictive.
Strength training is non-negotiable
Cardio burns calories during the workout. Strength training preserves and builds the muscle that burns calories all day. Two to three short sessions per week are enough; you do not need a gym membership.
Sleep, alcohol, and stress
Poor sleep and high stress raise cortisol, which drives appetite and abdominal fat storage. A consistent 7+ hours of sleep makes the deficit much easier to maintain.
Alcohol calories are deceptive — they are not stored as efficiently but they replace nutrients in your day and disinhibit eating. Even reducing weekly alcohol by 50% has visible BMI effects over months.
Try the free BMI Calculator
Free, offline, available in 20 languages on Android and iOS. 30 seconds is all it takes.
Google Play App StoreTrack your BMI weekly so you see the trend, not the daily noise. Our BMI Calculator is free, offline, and easy enough to use as a Sunday-morning habit.
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