Good appetite, but still thin. What's going on?

Good appetite but thin may be caused by intestinal malabsorption, increased exercise, chronic wasting diseases and other reasons.

1, intestinal malabsorption

Some diseases or drugs may affect the ability of the intestinal tract to absorb nutrients, resulting in the body can not fully absorb calories and nutrients in food, thus making the body lean.

2, increased exercise If

increased exercise, the body consumes more energy, even if the appetite is good, it may also appear thin.

3, chronic wasting diseases

Some chronic diseases, such as diabetes, hyperthyroidism, tuberculosis, etc., may lead to strong metabolism of the body, digestion of a large amount of energy, resulting in a good appetite but thin body phenomenon.