Highland barley and oats are coarse cereals, which are quite different from flour and rice, where we usually eat the most, that is, flour and rice. The sugar index of miscellaneous grains is low and the sense of revenge is strong, so we can improve our satiety by eating more miscellaneous grains and reduce our calorie intake. Many bodybuilders eat like this. So, which is better, highland barley or oats? Because both of them belong to miscellaneous grains, they are actually similar in some effects on human body.