When a nutritionist recommends you, you should eat 300 ~ 500 grams of vegetables, 200 ~ 350 grams of fruits, 50 ~ 150 grams of whole grains and coarse cereals every day… Do you think, a face of stupid force? How many grams is this? How many grams is it? Dr. Clove teaches you a clever trick. As long as you use your hands well, it is a universal scale.