Scale stuck but clothes looser — what's happening?
The scale can sit on the same number for weeks while your jeans get looser and your waist shrinks. That is usually fat going down while water and muscle hide the change on the number.
If the weighing scale shows the same number for weeks, I am not losing any fat.
mostly falseMostly false. The scale adds up fat, muscle, water, and last night's dinner into one number. Fat can be going down while water or muscle goes up, so the number stays flat. Your clothes and your measuring tape often tell the real story first.
Real fat loss is slow on the scale
Burning 1 kg of body fat takes about 7700 kcal of deficit. That is a big chunk of food, about the calories in 30 plain restaurant naans. So a good week of fat loss is only a few hundred grams, tiny on the scale. A big overnight drop is usually water leaving, not fat.
Assumptions: 1 kg body fat ~ 7700 kcal (Wishnofsky). A plain restaurant naan is ~262 kcal per 90 g piece (USDA FDC 171845), so 7700 / 262 ~ 29, rounded to ~30 naans. A steady deficit of ~500 kcal/day for a week (~3500 kcal) would lose ~0.45 kg of fat, i.e. 'a few hundred grams' — this is transparent arithmetic from the 7700 kcal/kg figure, not a new measurement.
The water inside my body stays about the same every day.
falseFalse. Your body stores carbs as glycogen, and each gram of glycogen holds about 3-4 grams of water. A full glycogen store can swing roughly 1.5-2 kg of water. A salty pickle, papad, or namkeen adds sodium that holds water too. So your weight can jump a kilo or two in a single day from water alone, with zero fat change.
Same weight on the scale means my body size is the same.
mostly falseMostly false. Muscle is denser than fat, about 1.06 g per cm3 versus fat at about 0.9 g per cm3. So the same weight of muscle takes up about 18% less space than fat. Swap some fat for muscle and the scale may not budge, but your waist and your clothes change.
Track progress the honest way
- Wrap a measuring tape around your waist once a week. If the centimetres drop, fat is going, even if the scale is flat.
- Try on one old pair of jeans every two weeks. Looser at the waist is real progress you can feel.
- Take a mirror photo every week in the same light. Your shape changes before the scale does.
- Weigh yourself once a week, not daily. Same morning, after the toilet, before tea.
- Notice strength and energy. Climbing two flights without panting is progress the scale cannot show.
The bottom line
The scale mixes fat, muscle, water, and yesterday's dinner into one number. Real fat loss is slow, about 7700 kcal per kilogram, and water shifts can hide it for days. If your clothes are looser and the tape is dropping, you are losing fat, even when the scale refuses to move. Trust the tape and the mirror, not just the number.