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Lycium barbarum (Goji berry)
Theacrine
Lycium barbarum (Goji berry)
Invalid Link RemovedSignificant differences between day 1 and day 15 were found in the GoChi group (N = 16) in increased ratings for energy level, athletic performance, quality of sleep, ease of awakening, ability to focus on activities, mental acuity, calmness, and feelings of health, contentment, and happiness. GoChi also significantly reduced fatigue and stress, and improved regularity of gastrointestinal function. In contrast, the placebo group (N = 18) showed only two significant changes (heartburn and happiness). No significant changes in musculoskeletal or cardiovascular complaints were observed in either group. All parametric data (body weight, etc.) were not significantly different between groups or between day 1 and day 15 for either group...
These results clearly indicate that daily consumption of GoChi for 14 days increases subjective feelings of general well-being, and improves neurologic/psychologic performance and gastrointestinal functions. The data strongly suggest that further research is indicated to confirm and extend knowledge of the potential effects of Lycium barbarum upon human health.
Invalid Link RemovedWe examined the effects of Lycium barbarum fruit (goji) intake on general well-being in a randomized, double-blind, placebo-controlled 30-day intervention trial. Plasma levels of cortisol, dehydroepiandrosterone (DHEA), glucose, urea nitrogen (BUN) and lactic acid followed by an exercise challenge were assessed at the pre- and post-intervention. Relative to the placebo group (n=19), tiredness and overall health were significantly improved in the Lycium barbarum group (n=20). Cortisol, DHEA and lactic acid levels were significantly increased by the exercise for the pre-intervention: However, at the post-intervention, Lycium barbarum intake significantly attenuated cortisol and DHEA levels. Lactic acid levels were comparable for both groups, and glucose and BUN levels were not altered. These results show that Lycium barbarum consumption attenuates the adrenal steroid response and reduces the feeling of tiredness.
Theacrine
Invalid Link RemovedThe 200 mg dose of TC caused significant improvements in energy (TC: +8.6% vs. PLA: -5.7%, P=0.049) and reductions in fatigue (TC: -6.7% vs. PLA: +5.8%, P=0.04). A trend for improved concentration was also noted (TC: +2.4% vs. PLA: -1.3%, P=0.07). No changes in systemic hemodynamics or side effect profiles were noted. The N=6 cohort study demonstrated moderate to large effect sizes (0.50 to 0.71) with the 200 mg dose of TC over a 7-day period of assessment for the following subjective measures: energy, fatigue, concentration, anxiety, motivation to exercise and libido.
These preliminary data support the benefits of acute TeaCrine™ supplementation on subjective “energy” levels and some indices of mental performance.