Many things can shorten our lives. In particular, a lot of food is bad for us. A new study says eating protein could make us age faster. Scientists often tell us that meat and dairy products help us to live longer. However, researchers found that a high-protein diet without exercise increases body fat. A researcher said people who eat more protein have a higher chance of getting cancer, diabetes, heart disease, and even a shorter life.

Protein is an important part of our diet. It helps us to build muscle. Protein is in food like meat, fish, dairy products, and eggs. Vegetarians find it in beans, nuts, and tofu. Many people eat too much protein. Supermarkets are full of protein-packed food. Eating this could shorten our lives. The researcher said most people sit down a lot, so they are more likely to eat too much protein. He said this probably has "negative health consequences".