How much water to drink when fasting?

You would actually need more water while fasting than when you’re not fasting.

When fasting, you’re losing glycogen. With the glycogen loss (stored sugar), you’re also going to lose a lot of fluid. This fluid isn’t just water. It’s a combination of water, electrolytes, and salts—which need to go back into the body.

I think it would be a good idea for someone to consume between 2-3 liters of water per day while fasting. This could also help prevent kidney stones. You would want to be sure to add in electrolytes and sea salt. Forgetting electrolytes and sea salt can potentially lead to keto fatigue, keto flu, and overall weakness. Many people really forget about sea salt.

I believe a person should have between 1-1.5 teaspoons of sea salt every day. If you work out, you may need more.