Word: b12
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Dates: during 2000-2009
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...should not overlook folic acid (found in meat and leafy green vegetables such as spinach) or vitamins B6 and B12. They reduce high levels of the amino acid homocysteine, which is believed to contribute to Alzheimer's. "It makes sense to have a diet that's rich in folic acid, fresh fruits, legumes and vegetables," says UCLA's Small. "And it can't hurt to take a multivitamin, which has 0.4 milligrams of folic acid and some B6 and B12...
...best evidence to date concerns folate, one of the B vitamins. It's been proved to limit the number of neural-tube defects in embryos, and a recent double-blind randomized trial found that folate in combination with vitamin B12 and a form of B6 also decreases the reblockage of coronary arteries after angioplasty. Look for a supplement that contains 400 micrograms of folate...
Since beef, chicken and fish are good sources of protein and vitamins, nutritionists stress that a vegetarian diet requires vigilance, especially during the growth spurts that occur in adolescence. Strict vegans, especially menstruating girls, have to be particularly careful to get enough iron, zinc, calcium and B12. (B12 is not found in vegetables.) Yet most experts agree that the diet is eminently manageable. "It's easier to absorb and maintain the necessary nutrients if you eat a little bit of meat or fish," says Bier. But beans, tofu, peanut butter, broccoli, milk, eggs and whole grains can provide protein, iron...
Among the active ingredients in the concoction are the amino acid taurine, vitamin B12, sugar and a jolt of caffeine (each 250-ml can has about as much caffeine as a shot of espresso). For added punch, party regulars prefer their Red Bull with vodka or champagne. "It gives you a high, especially when mixed with other substances," says Lauren, 27, a New York City art dealer. "It lets you party all night long." Best of all, it's legal...
Other purported memory potions include such nonsteroidal anti-inflammatories (NSAIDS) as Advil and Motrin, which in one study appeared to reduce the risk of Alzheimer's disease as much as 50% over a 15-year period. Lecithin, vitamin B12 and folic acid also generate buzz in the memory biz, but again there is little or no in-the-lab science to back up the claimed benefits. "There just aren't any good data that we know of," says Buckholtz...