Live yeast is a food, not specific to the efficacy and function of drugs, with rich protein and other nutrients, but also can provide energy for the body. Live yeast is rich in nutrients, per 100 grams of yeast containing 372 calories, carbohydrates 45.5 grams, 47.6 grams of protein, 1.7 grams of fat, 7.9 grams of cellulose, riboflavin 3.35 milligrams, niacin 45.2 milligrams, 106 milligrams of calcium, iron 18.2 milligrams. The nutrients contained in live yeast are substances needed by the human body, which can provide energy to the human body, and can be added to food such as steamed bread to improve the taste of food and increase the nutrition of food. Live yeast is a kind of food, but should not be consumed too much, pay attention to moderate consumption. At the same time, live yeast does not have the efficacy and role of drugs, if the body appears uncomfortable symptoms, it is recommended to go to the hospital in a timely manner to avoid delays in the condition.