Phosphatidylserine

Treatments: 
Age-related cognitive decline (ARCD) Athletic performance (to enhance enurance in young active men) Alzheimer’s disease Depression Parkinson’s disease

Common Symptoms:
PS is not an essential nutrient, and therefore dietary deficiencies do not occur. Adults age 50 and older, especially those with age-related cognitive decline, may not synthesize enough PS, and appear most likely to benefit from supplemental PS.

Dosages:
Positive effects on mental function have been achieved using 200–500 mg per day of bovine PS; most studies used 300 mg per day. Preliminary animal research shows that the soy-derived PS does have effects on brain function similar to effects from the bovine source.

Side Effects:
No significant side effects associated with PS have been reported. At the time of writing, there were no well-known drug interactions with phosphatidylserine.