Fasting is of the best ways to detox, cleanse, gain mental clarity, and reverse hormonal irregularities associated with insulin and obesity. During any fast, an uptick in water and herbal tea consumption is essential. Fasting for extended periods can lead to dehydration if you don't drink enough fluids and consume electrolytes. Sodium, magnesium, potassium, and calcium are essential electrolytes that can be quickly depleted if you're abstaining from food. With long term fasting, any loss of minerals can be replaced with bone broth. It is great for immune function, the spine, and nervous system health.