Seaweed concentrates B vitamins in laver, especially riboflavin and nicotinic acid, as well as vitamin A, vitamin E and a small amount of vitamin C. Seaweed is rich in minerals, including potassium, calcium, magnesium, phosphorus, iron, zinc, copper and manganese. It is necessary to maintain normal physiological functions, especially selenium and iodine. These minerals can help the human body maintain acid-base balance. Therefore, in the process of slimming, it is not wrong to choose laver as a snack.