Baking powder is a composite bulking agent, mostly used in the production of steamed buns, doughnuts or a variety of puffed food, to play the role of foaming and puffing. Baking powder is harmful to the body according to the composition of baking powder and determine, part of the baking powder is alkaline substances, moderate consumption will not have much effect on the body, but some baking powder contains alum, which contains potassium sulfate or aluminum ammonium sulfate and other substances, has a certain impact on human health, it is recommended that daily can try to avoid intake. Long-term intake of higher levels of aluminum will increase the risk of skeletal and neurological disorders in patients, such as osteoporosis, memory loss, dementia and other conditions, so avoid eating baking powder containing aluminum, choose other non-aluminum composite baking agents or yeast. Daily reasonable with the diet, do not eat too much fried noodles sold on the street, sesame and other fried noodles, in the choice of food to pay attention to the food ingredients list contains no aluminum food additives to reduce the intake of aluminum. In general, most of the baking powder is harmless to humans, a few aluminum baking powder occasionally eat 1-2 times also does not have a great impact, pay attention not to long-term consumption can be.