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One study found that people who ate diets rich in phosphatidylcholine, a component of biological membranes that is abundant in eggs and other foods, were 28% less likely to develop dementia.

He swallows some ninety pills a day, including metformin; Basis; a coenzyme called Q10, for muscle strength; and phosphatidylcholine, to keep his skin supple.

The phosphatidylcholine pills added up to 750 mg of choline each day, the equivalent of 170 percent of the recommended level for pregnant women and 140 percent of the recommended daily amount for breastfeeding moms.

Additionally, the type of choline used - phosphatidylcholine - might be less effective than choline itself.

We found that autoantibodies in MS target a phosphate group in phosphatidylserine and oxidized phosphatidylcholine derivatives.