The raw food diet is one of the healthy crash diets to lose weight fast. In this diet plan, you are expected to eat only raw, fresh uncooked food and avoid all processed ones. Fruits, vegetables, nuts, seeds, milk, buttermilk, yogurt, organic foods, beans, etc. are some of the foods that you can include in the raw food diet. As beverages, you can have tea, coffee, herbal tea, green tea and plain drinking water.