When inactive young people do light cycling, their bodies burn the most fat at very easy effort levels — but as it starts feeling harder than 'light,' fat burning drops off, showing there's a sweet spot for burning fat during exercise.

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Evidence from Studies

Supporting (1)

42

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42

Dynamics of Fat Oxidation from Sitting at Rest to Light Exercise in Inactive Young Humans

Cross-Sectional Study

Human

2021 May 24

The study found that when light exercise feels easy, people burn more fat, but when it starts to feel harder, they burn less fat—even at the same speed—supporting the idea that there’s a sweet spot for fat burning at very light effort.

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Source Study

Dynamics of Fat Oxidation from Sitting at Rest to Light Exercise in Inactive Young Humans

Score: 42

DOI: 10.3390/metabo11060334

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