Consumer's Guide to

Phosphatidylserine

Researchers found not all sources of phosphatidylserine produced cognitive improvement. So it's important to test each food source. (141)

How Does PhosphatidylSerine Derived from Soy Compare to Bovine?

Early clinical studies used phosphatidylserine derived from cow brains (bovine cortex). But when mad cow disease was discovered in the 1980s, researchers began testing various foods to find an effective replacement.

Chart: Phosphatidylserine derived from soy compared to bovine. Remembering names immediately after introduction: 48% soy ps, 40% bovine ps, 13% placebo. Learning and remembering written information: 40% soy ps, 37% bovine ps, 7% placebo. Remembering names one hour after introduction: 33% soy ps, 27% bovine ps, 9% placebo.

(Above:) The efficacy of phosphatidylserine derived from soy is show superior to bovine. (126)

Both animal studies (140,141,226,227) and human clinical trials (126, 139, 168) proved that phosphatidylserine derived from soy in Flavay Plus® is as effective—and better—than bovine-derived.

A reversal of brain aging of nearly 14 years was found after 12 weeks of supplementation with 300 mg per day of soy-derived phosphatidylserine. Improvements were found in learning and remembering written information, remembering names and recognizing people, and memory of numbers. (168)

Researchers found phosphatidylserine derived from egg failed to produce cognitive improvement. (141)

Has Sunflower-Derived Phosphatidylserine Proven Effective for Cognitive Improvement?

No. Sunflower-derived phosphatidylserine has not been proven to produce cognitive improvement. There is no research to determine whether sunflower-derived phosphatidylserine can produce the same brain benefits as soy-derived phosphatidylserine.

Sunflower-derived phosphatidylserine has not been proven effective for cognitive improvement.

Comparative testing (see above) demonstrates that research conducted on bovine and soy-derived phosphatidylserine may not be automatically transferred to other phosphatidylserine products. (Researchers found phosphatidylserine derived from egg failed to produce cognitive improvement.) (141)

Consumers want the phosphatidylserine that's proven effective and safe.

Phosphatidylserine in Flavay Plus® is validated by clinical trials and extracted from soy which is confirmed non-GMO.

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