Expired yogurt can not drink, the reasons are as follows: 1, expired yogurt is often rich in pathogenic bacteria, if you drink yogurt containing pathogenic bacteria, it is easy to lead to abdominal pain, bloating, diarrhea, which endangers the body’s health; 2, many of the nutrients in the yogurt has been decomposed, consumed, drink expired yogurt can not replenish the nutrients to promote the health of the body’s purpose; 3, such a yogurt will contain allergenic substances, especially the protein decomposition products are more prone to allergies, which can lead to itchy skin, skin rashes, or may lead to asthma and endangering the body.