头发枯黄的主要病因有:甲状腺功能低下;高度营养不良;重度缺铁性贫血和大病初愈等,导致机体内黑色素减少,使乌黑头发的基本物质缺乏,黑发逐渐变为黄褐色或淡黄色。另外,经常烫发、用碱水或洗衣粉洗发,也会使头发受损发黄。针对不同病因所致的黄发采取不同的饮食调养方法,会收到较好的效果。营养不良性黄发:主要是高 The main causes of hair yellow are: hypothyroidism; a high degree of malnutrition; severe iron deficiency anemia and serious illness, such as early, resulting in reduced body melanin, black hair of the lack of basic material, black hair gradually turned yellow or yellow . In addition, regular perm, shampoo with alkaline water or detergent, will also make hair damaged yellow. For different causes of yellow hair to take a different diet regimen, will receive good results. Malnutrition yellow hair: mainly high