To be honest, I don't think a little fat in milk will make people fat. You 14 years old, and you know it yourself. Besides, you really don't need to drink any low-fat milk in the morning. Generally, the calorie of 100ml milk is about 67 calories, and that of whole milk is about 100ml is about 33 calories. Eating less snacks is better than anything else.

Don't worry about drinking milk, son. Of course, as long as it does not contain melamine, milk can help you grow taller and lose weight. This is what I saw on TV.