Iron is essential for the formation of haemoglobin, the red pigment in blood.
铁是必不可少的组成血红蛋白，红色颜料在血液。
2
Blood viscosity will speed up the brain of oxygen, pigment deposition, so come early aging.
血液黏稠会加快大脑的缺氧、色素的沉积，使衰老提前来临。
3
Retinal pigment epithelial (RPE) cells lie between the sensory retina and the choroids, constitute the outer blood retinal barrier and play a vital role in the retinal metabolism.