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Phosphatidylserine (PS) is classified as a phospholipid.
Phospholipids are fats that are found in every cell of the human
body. Phosphatidylserine can be found in very high concentrations in
the brain, where it is responsible for keeping cell membranes fluid,
flexible, and ready to process essential nutrients. PS is also a
very important support chemical for nerve tissue. As a support to
the nervous system, PS aids proper release and reception of
neurotransmitters in the brain. PS helps to ensure that
memory-related pathways function smoothly.
Some research
shows that when PS levels naturally decrease with increasing age, so
too does the ability to learn, remember, and stay alert. Depression
may also develop as a result of age-related phosphatidylserine
insufficiency. PS supplements have been proposed as a partial
solution to such developments. Rapidly absorbed into the brain,
these supplements may compensate for low PS levels and thus prevent
or even reverse age-related declines in brain function. PS actually
appears in numerous foods, including rice and green leafy
vegetables, but only in small amounts. Commercially prepared
supplements offer a concentrated source.
Up until a few years
ago, phosphatidylserine supplements were manufactured from animal
sources, specifically from cows' brains. But because of concerns
about the potential for cross-species infection ("mad cow" disease),
supplements are now derived from a plant source, soy
lecithin.
Health Benefits and
Indications
Studies indicate that phosphatidylserine
supplements may help to revitalize age-impaired brain function.
However, there is no solid research evidence to indicate that adding
PS supplements to the diet in this way will make any
difference.
Specifically, phosphatidylserine may help
to:
- Lessen age-related decline in brain functioning.
- Slow brain function decline in Alzheimer's disease and
Parkinson's disease.
- Combat depression.
- Increase ability to handle stress.
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