Why Your Weight Jumps 2kg Overnight
Gained 1.5 kg overnight? You didn’t gain fat — it’s water and food weight. Here’s what’s really happening.
What moves the scale daily
- Salt — a salty meal holds water for a day or two.
- Carbs — each gram of stored carb holds water.
- Food & water in your gut not yet digested.
- Hormones, stress and (for women) the menstrual cycle.
How to read the scale
Weigh yourself same time daily (morning, after the toilet) and track the weekly average. To actually gain 1 kg of fat you’d need to eat ~7,700 surplus calories — impossible overnight.
One high reading means nothing. Watch the 7-day trend — that’s your real progress.
Quick answers
Did I really gain 2kg in a day?
No — that’s water and food weight. Real fat gain of 2kg would need ~15,000 surplus calories.
How often should I weigh in?
Daily at the same time, then judge the weekly average — it smooths out the noise.
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