According to Douding.com, whole milk powder is not trans fatty acid. Full-fat milk powder contains a certain amount of natural trans fatty acids, but the total amount is not much, and it is not the main component. Full-fat milk powder is a dairy product composed of milk fat, lactose and whey protein, in which milk fat accounts for the largest proportion, accounting for more than 90%.

Trans fatty acids are chemical components in food, and most of them exist in oils and fats produced by processing such as butter and shortening extracted from plants, as well as foods made from these oils, such as fried chicken and cakes. In addition, a small part exists in the meat and fat of ruminants.