How can people eat whole grains without getting sick?

This sentence is worth thinking about. Why do you say that? When we are sick, we often hear many doctors comfort patients and say, "People who eat whole grains are not sick." But looking back at these patients, it is because they didn't eat whole grains. They take polished rice, refined flour, big fish and big meat as their staple food every day. Therefore, modern people are sick at two extremes. At one extreme, because they don't eat whole grains, they lack various nutrients and minerals. One extreme is eating too much white rice and flour, eating too much fish and eating too much meat, getting obesity and cardiovascular and cerebrovascular diseases. This is that we mistakenly regard white rice and flour as whole grains.