When you do light, steady exercise like walking, your body burns more fat compared to carbs than when you're going harder, like running.
Evidence from Studies
Supporting (2)
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Skeletal muscle carnitine loading increases energy expenditure, modulates fuel metabolism gene networks and prevents body fat accumulation in humans
The study looked at how the body burns fat during light exercise and found that people burned more fat when their muscles had more carnitine. This fits with the idea that low-intensity exercise helps your body use fat for energy.
Dynamics of Fat Oxidation from Sitting at Rest to Light Exercise in Inactive Young Humans
The study found that when people do light exercise, their bodies keep burning fat at a high rate, which supports the idea that easy workouts use more fat for fuel than harder ones.
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.