Fasting is tough since it can expose your nutrient deficiencies. Many people are deficient in potassium and magnesium which will really show itself during a water fast. It's why juice fasts are probably the best bet for most people. Assuming it is a quality juice potassium will be high. Carrot juice is optimal IMHO, very high in minerals and low in sugar compared to most juice.

Just a glass or two throughout the day, and the rest of the time sipping sugar free electrolyte water along with small amounts of b vitamins.

Fasting is tough since it can expose your nutrient deficiencies. Many people are deficient in potassium and magnesium which will really show itself during a water fast. It's why juice fasts are probably the best bet for most people. Assuming it is a quality juice potassium will be high. Carrot juice is optimal IMHO, very high in minerals and low in sugar compared to most juice.

Carrot and beet juice. Just a glass or two throughout the day, and the rest of the time sipping sugar free electrolyte water the rest of the day along with small amounts of b vitamins.