When we need energy, can’t the body just burn the stored fat? Isn’t that the whole point of stored fat? Why will we feel hungry, weak, lightheaded, etc. at all? I understand if the body doesn’t have enough fat (if you’re super skinny), it would make sense to feel hungry, but I don’t understand why would that be the case if there’s enough fat to go around.
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It has to do with insulin. Insulin is a fat storage hormone. When your insulin level increases from eating carbs, it signals your body to store fat and you cannot burn it effectively until it lowers again.
Carbs (sugar) cannot be stored very well in your body and you must constantly be eating them to provide energy. So when this energy is depleted you feel hungry until you eat more or until your insulin levels lower enough to start allowing your body to burn the stored fat.
So either constantly need to eat, or stop eating long enough to get into fat burning stage (ketosis).
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