Almost every ancient civilization around the world has used mushrooms for their healing properties for thousands of years. In fact, these adorably shaped delights are so good that people often use them as medicine! For one, they are a rich source of B vitamins, selenium and copper. In addition, there is even a clinical study that found that eating mushrooms daily improves immunity in a way that is not found in any currently available pharmaceutical drugs. Besides, mushrooms are loved by almost everybody, and are used extensively in cooking in many cuisines around the world.