Ginseng Clinical Evidence
Journal of Psychopharmacology.
Can Panax ginsenglower glucose levels and improve cognitive performance?
Previous studies have shown that single doses of ginseng can lower blood glucose levels and improve cognitive performance. This study sought to replicate these findings.
Human intervention trial
Double-blind, placebo-controlled, balanced-crossover. Subjects took a cognitive test at baseline and then took either ginseng capsules or placebo. Thirty minutes later, they consumed a drink containing either glucose or placebo. An hour after the baseline cognitive test, they took a battery of additional cognitive tests. Blood glucose levels were measured several times during the experiment.
27 healthy young adults
200 mg, single dose
Both glucose and Panax ginsengimproved performance on the mental arithmetic tasks and reduced feelings of fatigue induced by the tests.
Panax ginsengcaused a reduction in blood glucose levels 1 hour following consumption when ingested without glucose. These results confirm that Panax ginseng may possess glucoregulatory properties and can enhance cognitive performance.
Ginseng Mechanism of Action
Ginseng is thought to enhance endurance by changing the way the body metabolizes fuel, allowing cells to use FFA instead of glucose. It also raises the oxygen capacity of the heart and improves the coronary reserve, or the heart’s potential to work beyond a baseline level.