General fitness enthusiasts can eat it. Although it is best for people who exercise to eat white meat, it is similar to fish and chicken. Because of its low fat content, protein's ingredients are close to human body, so it is easier to be absorbed.
But red meat can be eaten, because red meat, such as pork and beef, contains a lot of iron, which can supplement the iron needed by our body and prevent iron deficiency anemia, so I think ordinary fitness lovers can eat pork.