Phosphotidylserine is derived from soy lecithin and is regarded as a supernutrient
to the brain. It is a wonderful supernutrient with many beneficial effects,
but I intend to mention its effect on memory in this chapter. It is a phospholipid
and found in high concentration in the membranes of nerve cells. It facilitates
the influx of nutrients into the cell. It also enhances memory and cognitive
function by releasing acetylcholine and dopamine. In a study by Dr. Crook on
patients who took PS for 12 weeks, it was shown to improve memory by 14 years.
It is good for depression as it elevates mood and makes you feel happy. It has
antioxidant properties and protects the cell membrane.43, 19
More than 25 studies on humans have been performed with PS of which 12 have
been double blind placebo controlled (DBPC) trials. They have all shown memory
improvement. PS is found in all vegetables and animal foods in particular soybeans,
liver, eggs, wheatgerm and peanuts.
Doses of 100 to 300 mg per day are recommended with no side effects at these
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