I feel drained and exhausted on keto. What can I do?

Take more vitamins B1 and B5. Nutritional yeast will provide these and other B vitamins as well. We recommend trying Dr. Berg's Nutritional Yeast Tablets. Here is the link for this supplement: https://shop.drberg.com/nutritional-yeast-regular

Here is what Dr. Berg has to say about exhaustion on Keto: