There are a lot of things our parents told us that turned out not to be true. Clearly, our eyes didn’t get stuck crossing them and sitting too close to the TV didn’t make us go blind. It also turns out that their assertion that coffee stunts growth is not true. There is no link between drinking coffee and height, though kids consuming caffeine may not be desirable for other reasons. But just because our parents were wrong about coffee, doesn’t mean that there aren’t foods and drinks that affect height.
While there are a number of factors that contribute to your height, such as genes and environment, diets play an important role in how tall a person will be when they become adults. While no food is going to make a child Shaquille O'Neal, there are certain foods, like milk and broccoli, that help ensure that kids reach their full growth potential.
On the other hand, there are foods that will have a negative impact on growing children. So while our parents were wrong that coffee will stunt our growth (and for that matter, that gum will stay in our stomachs for seven years undigested), it is true that there are a lot of foods that can prevent kids from growing to their full height potential.