Does Prevagen really work? Many people believe that it does, but is it safe to take? The New York Attorney General and the Federal Trade Commission have both sued the makers of Prevagen for making unsubstantiated claims. However, there are plenty of consumers who swear by the product and are happy to give it a try. Listed below are some pros and cons of Prevagen. You should also be aware of any warnings or side effects that it may have. Side effects of Prevagen include nausea, loss of appetite, sweating, and increased thirst. Some users also experience a metallic taste. In addition, they may experience constipation, muscle pain, and confusion. Some individuals may even experience none of these side effects. If you’re unsure whether Prevagen works or not, call the FDA at 1-800-FDA-1088. The company behind Prevagen has yet to provide a written statement explaining the cause of the adverse reactions. One of the claims of Prevagen is that it improves cognition. But, there’s no evidence to support these claims. The company behind the supplement says that the supplement contains apoaequorin protein, a protein that’s similar to the molecules in the human brain. While this may work to improve memory and ward off mental fatigue, it still doesn’t go far enough to be a cure-all for memory issues.