Data Stories

Up 2kg overnight but looking leaner? The scale didn't catch fat.

You can't gain 2 kg of fat overnight

Real fat gain needs a large surplus across days. A 2 kg morning jump is water, food still in transit and glycogen — not fat.

Carbs and salt hold water

A bigger meal, more carbs or more salt pulls water into muscle and gut. It reads as weight, but it isn't fat — and it clears in a day or two.

Sleep, stress and cycle move it too

Poor sleep, hard training and hormonal shifts swing water balance by kilos. The scale can't tell water from fat — it just sees total mass.

So weigh the trend, not the day

One morning is noise. A line over weeks is signal. Judge yourself on the direction things are heading, never a single number.

Screenshot: what a daily swing really is

Water ✓ Food in transit ✓ Glycogen ✓ Sleep + stress ✓ — almost never overnight fat. Breathe, and read the trend instead.