Foods containing niacinamide are as follows: 1, animal offal, such as pig liver, chicken liver, lamb liver, beef liver, these animal livers are often rich in niacinamide. 2, lean animal meat, such as lean beef, lean pork, lean lamb, these lean animal meat can provide the body with rich niacinamide. 3, nut foods, such as walnuts, pistachios, hazelnuts, peanuts, sunflower seeds, which are also very rich in niacinamide. . And fruit can also provide the body with niacinamide, such as apples, oranges, lemons.