营养物质能量的吸收、储存和利用构成一个十分复杂的体内平衡系统，从而保持相对恒定的能量储备和体重。肥胖从根本上讲是能量相对摄入量与能量消耗间平衡失调的结果。造成机体能量失调的原因非常复杂。随着分子生物学技术的发展，目前已发现多个与肥胖相关的基因，其中ＵＣＰ The absorption, storage and utilization of nutrients energy constitute a very complex system of body balance to maintain a relatively constant energy reserve and weight. Obesity is fundamentally the result of a dysfunctional balance of energy intake and energy expenditure. Causes of energy imbalance in the body is very complicated. With the development of molecular biology techniques, a number of genes related to obesity have been found. UCP