The drinks which we are talking about can be beneficial for you during the daytime but can have the reverse effect if consumed after dinner. Let us have a look at the drinks that you shouldn't have after dinner. Coffee With Creamer - The whitener partially contains corn syrup and hydrogenated vegetable oils. It is seen that hydrogenated vegetable oil contains fat and corn syrup contains sugar that makes it difficult for our body to metabolise it. Diet Soda - If you want to reduce the stubborn belly fat and are working hard for it, then consuming this form of artificial sugar just before bedtime will aggravate your problems even more. Cow’s Milk - Cow's milk can be harmful to your bones. This is because of the presence of an acidic animal protein that removes calcium from the bones. Besides, milk is the source of calories, unwanted fat, antibiotics, and cholesterol.