If fat is released from fat stores but not burned for energy, the total amount of fat in the body does not decrease.
Evidence from Studies
Supporting (4)
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Higher baseline fat oxidation promotes gynoid fat mobilization in response to a 12 week exercise intervention in sedentary, obese black South African women.
Your body can pull fat out of storage, but if it doesn’t burn that fat for energy, the fat just sits around. This study showed that when people exercised and burned more fat, they lost fat — but if they didn’t burn it, they didn’t lose any.
The study shows that just breaking down fat isn't enough to lose weight — your body also needs to burn it for energy. When people broke down fat but didn’t burn it much, their fat stores didn’t shrink.
Adipose Tissue Resistance to the Antilipolytic Effect of Insulin and Niacin in Humans With Obesity.
The study shows that fat is released from fat cells but not burned off, which means the fat just stays in the body—so just breaking down fat isn’t enough to lose weight; you also need to burn it.
Spot reduction: why exercise probably can’t help you target fatty areas of the body
You can't lose fat just from your belly by doing crunches—your body burns fat from all over when you use more energy than you eat. Mobilizing fat from one spot doesn't make it disappear there unless your body actually burns it for energy.
Contradicting (0)
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Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.