Select all that applyThe type of macronutrient used for fuel during exercise depends upon…

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➤ What determines which macronutrient fuels exercise?
Intensity and duration are the main determinants of fuel choice. High-intensity efforts rely mostly on muscle glycogen and blood glucose, while low-to-moderate intensity over longer duration shifts toward fatty acid oxidation. Training status, recent diet, and hormonal state also modify substrate availability and use.