Can we survive only on raw, leafy vegetables/ grass? Discuss.

No, Humans cannot survive only on raw, leafy vegetables, or grass. It is because the grass is rich in cellulose, which is a type of carbohydrate that humans are not able to digest due to the absence of cellulose-digesting enzymes. Also, our body requires all kinds of nutrients like protein, vitamins, minerals and fats. So human cannot survive only on raw, leafy vegetables.