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When it comes to the keto diet and energy levels, here are three things to remember: Restricting carbs helps you enter ketosis, a state where you burn fat as your primary fuel source. At first, your body may feel exhausted running off ketones.

There are 3 main reasons keto increases your energy, mental clarity and enhanced cognitive function: 1) Ketones are a potent energy source, 2) fat takes longer to digest than carbs, and 3) your blood glucose levels don’t fluctuate as much. 2, 3, 4

This leads to what is known as a 鈥渃rash鈥? in which energy levels drastically drop, leading to fatigue. How does the keto diet combat energy loss? Well for one, you need to know this: fat is the answer. When you are cutting down carbs, you have to offer the body an alternative energy source.

If you do try a keto diet to jump-start weight reduction, choose healthier sources of fat and protein, such as olive oil, avocados, and nuts (almonds, walnuts). But after a few weeks, switch to a reduced-calorie Mediterranean-style diet and increase your physical activity.