Do the Whole30 diet. The idea behind this diet is to eliminate all processed foods from your diet for 30 days to cleanse your system of artificial ingredients and other processed items that are hard on your digestive system. After 30 days, you'll notice a reduced waistline and higher energy levels.[11]
Avoid grains, dairy, sugars, legumes, alcohol and all processed foods.
Eat meat, vegetables, some fruits, and drink plenty of water.