Pig’s trotters do not belong to the category of hairy food and can be consumed normally. The so-called “hairy food” generally refers to nutrient-rich and stimulating food, which may induce or aggravate certain diseases. Although pig’s feet are rich in nutrients, they do not belong to the category of hairy food. Pig’s feet in the nutritional elements or more comprehensive, which contains protein, calcium, phosphorus, magnesium and a variety of vitamins. Pig’s feet in the protein content is very rich, every 100 grams of pig’s feet contain 15.8 grams of protein, most of these proteins are collagen. Although pig’s feet are rich in nutrients, but also contains more fat, so it is not suitable for large amounts of food, suffering from hyperlipidemia, obesity and other diseases, patients should eat less. The human body needs many kinds of nutrients to maintain the normal metabolism of the body, therefore, in addition to pig’s trotters, pay attention to nutritional balance in daily life, more supplemental vegetables, fruits, meat, beans, dairy and other foods.