A new U.S. study has found for the first time that foods rich in choline (choline, also known as vitamin B4, is a B vitamin complex), such as chicken and eggs, can help slow the brain’s aging process and prevent Alzheimer’s disease. Researchers conducted an in-depth analysis of the results of a long-term heart health survey. The results found that the quarter of participants whose choline intake was at the highest level performed better on memory tests. These patients also had fewer brain scans with high brain white matter signals (abnormal brain white matter signals in patients with cerebrovascular disease, a risk sign for stroke and Alzheimer’s disease). The results held true after the researchers took education, fat and caloric intake into account. Low choline intake increases the risk of memory loss and is more likely to lead to Alzheimer’s disease, the researchers said. Choline intake is closely related to levels of the brain chemical acetylcholine. Choline undergoes a biochemical reaction in the body to form acetylcholine. And acetylcholine is the substance that transmits information in the brain; the more it is present, the faster the information is transmitted. There is an association between low acetylcholine levels and Alzheimer’s disease. Experts recommend a daily choline intake of 550 mg for men and 425 mg for women. Foods rich in choline include: chicken, eggs, sea fish, kidney beans, spinach, etc.