Helman A D, Darnton-Hill I
Am J Clin Nutr. 1987 Apr;45(4):785-9. doi: 10.1093/ajcn/45.4.785.
This study assessed the biochemical status of a number of vitamins and iron in a group of new vegetarians. Values were compared with a group of omnivores of similar age. Satisfactory to high levels of serum folate, vitamin E, and riboflavin were found, and all were significantly higher in vegetarians than omnivores. Thiamin status was satisfactory in both groups although a small but statistically significant difference in favor of the omnivores was found. Serum vitamin B-12 was significantly lower in vegetarians, and iron status as measured by serum ferritin was very significantly lower in vegetarians. Pyridoxine status was similar in both groups. A number of sex differences were found in the vegetarian sample. New vegetarian women appear to be at particular risk of developing low iron stores.
本研究评估了一群新素食者体内多种维生素和铁的生化状况。将这些数值与一组年龄相仿的杂食者进行了比较。研究发现，素食者血清叶酸、维生素E和核黄素水平处于令人满意到较高的水平，且均显著高于杂食者。两组的硫胺素状况均令人满意，不过发现杂食者有一个虽小但具有统计学意义的优势。素食者的血清维生素B - 12显著较低，而通过血清铁蛋白测量的铁状况在素食者中非常显著地更低。两组的吡哆醇状况相似。在素食者样本中发现了一些性别差异。新素食女性似乎特别容易出现铁储备不足的情况。
