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Why the scale jumps 1-2 kg overnight

Why the scale jumps 1-2 kg overnight

The scale can jump 1-2 kg in a single night, and almost none of it is fat. To gain 1 kg of real fat you would need about 7700 kcal above what you burn - impossible in a day. The overnight jump is water, salt, stored sugar (glycogen) and food still moving through you. Wait a few days before you worry.

12 Jul 2026 · Burnie Academy
water-weight scale myth

You wake up, step on the scale, and it is 1.5 kg higher than yesterday. Your stomach drops. Did you really gain all that overnight? Take a breath. The number is real, but what it means is much smaller than it looks.

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