Scientists at the University of Oxford have collected data from 22,000 clinical trials to provide a definitive answer to the debate over the potential benefits of B vitamins..

Alzheimer's patients have high levels of a compound called homocysteine \u200b\u200bin their blood. People with higher homocysteine \u200b\u200blevels have been shown to be at increased risk of developing Alzheimer's disease. At the same time, taking folic acid and vitamin B 12 reduces the level of homocysteine \u200b\u200bin the body..

This was the prerequisite for the development of a prevention strategy based on the "

A new analysis of clinical trials has been carried out by an international team of researchers at the University of Oxford.. Researchers analyzed data from 11 randomized clinical trials involving 22,000 people comparing the effects of vitamins on cognition in older adults versus placebo..

Participants receiving vitamins did indeed show a reduction in blood homocysteine \u200b\u200blevels by about a quarter. However, this did not have any positive effect on their level of intelligence..

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