A Japanese study has shown Vitamin E to impede bone health. Keio University published the study in the journal Nature Medicine. They found mice given large doses of Vitamin E had decreased bone mass. This reduction in bone mass would equate to a fracture risk in humans. Sources of Vitamin E include oils, green vegetables (e.g. spinach, broccoli), almonds and hazelnuts.
Although a lot of research has been conducted on the effect of Vitamin D and bone health, there is less known of the role of Vitamin E.
Some early studies have shown Vitamin E to be good for bone health. However this latest study has found this no longer to be the case.
The size and density of bones can change in adulthood, depending on a balance between cells known as osteoblasts and osteoclasts. Osteoblasts lay new bone, whereas osteoclasts strip away old bone.
The research has found Vitamin E to improve production of osteoclast cells, which results in more bone loss than growth. But Dr Helen Macdonald stressed due to the lack of enough research, there was no need for people to change their diet to avoid the relatively small amounts of vitamin E contained in it. She said: “However, vitamin E supplements involve doses far higher than those in a normal diet. There is increasing evidence that taking supplements doesn’t do any good, and if anything, may be doing harm.”