The reasons for becoming thin despite eating normally every day include physiological and pathological ones. Pathological causes include impaired digestion, absorption, utilization and consumption of nutrients.
1. Physiological: non-disease causes of daily consumption is greater than intake, such as heavy physical labor, excessive exercise, etc. Usually, after increasing food intake or reducing physical exertion, weight can be gradually restored.
2. Pathological: Disease-induced nutrient intake fails to provide daily energy for the body, thus causing weight loss.
(1) Obstruction of nutrient digestion and absorption: Wasting caused by dysfunction of digestive organs, including gastric, intestinal, hepatic, pancreatic and biliary diseases.
(2) Obstruction of nutrient utilization: For example, in diabetes mellitus, the lack of insulin leads to the inability of cells to take up glucose and other energy substances, thus causing wasting.
(3) Increased consumption of nutrients: including endocrine metabolic diseases, such as hyperthyroidism; chronic wasting diseases, such as severe tuberculosis, tumors, etc. and extensive burns; and high wasting diseases, such as persistent high fever.
If there is an unexplained significant weight loss, it is necessary to cause alarm, and it is recommended to go to the hospital for examination to rule out pathological factors.