Technically, yes—it is possible for the number on the scale to drop by 5.5 kg in a few days. However, this does not mean true fat loss.
Most of the weight lost in such a short period comes from:
Water weight
Glycogen (stored carbohydrates)
Digestive contents
Sometimes even muscle mass
Experts emphasize that real fat loss takes time and consistency, not extreme short-term measures.
The Extreme Methods People Use (And Why They Work)
To achieve rapid weight loss, some people turn to drastic strategies. These methods may cause the scale to drop quickly—but they come with serious downsides.
1. Severe Calorie Restriction or Fasting
People may consume extremely low calories—sometimes under 800 per day—or stop eating almost entirely.
Why it works: The body burns through stored energy (glycogen), reducing weight quickly.
The problem: This leads to fatigue, weakness, and loss of muscle tissue.
2. Cutting Carbohydrates to the Extreme
Low-carb or no-carb diets are often used to trigger fast results.
Why it works: Carbohydrates hold water in the body. Reducing carbs causes rapid water loss.
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