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Answer:

There is little evidence that phosphatidylserine supplements sold today help improve memory or with Alzheimer's disease. In addition, it has been reported that many brands of phophatidylserine sold online do not contain their listed amounts of phosphatidylserine. Sign in and read the full answer for more information and details.

There is also not much evidence that phosphatidylcholine can improve memory or cognition. However, it does provide choline, which is a component of the neurotransmitter acetylcholine. Another chemical form of choline sold in supplements has shown some promise in improving memory and cognition as explained in the Choline Supplements Review (which includes our tests and comparisons of marketed supplements).

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