7. Mushrooms Mushrooms are rich in mucopolysaccharide, protein, fiber, minerals, etc. Not only nutritious, they are effective in anti-cancer and detoxification. Their high-fiber, low calorie properties make them ideal for weight watchers because mushrooms can fill you up without gaining weight. Mushrooms have many other health benefits because they contain nucleotides. They are delicious and so convenient to cook. Recommendation: mushroom chicken soup, mushrooms over rice, boiled mushrooms with other vegetables.