About 170 calories A bottle of Amherst yogurt has about 170 calories. A bottle of Amherst yogurt weighs about 200ml, and it contains about 170 calories. After intake, these calories will not be excessively converted into fat and will not form obesity. Besides calories, yogurt is also rich in protein, amino acids, carbohydrates and lactic acid bacteria, which can not only promote metabolism, but also accelerate the discharge of intestinal waste, moisten the intestines and relieve constipation.