Supplement Clinical Trial
Official title:
The Impact of T+ Supplementation on Anabolic Hormone Profile and Performance in Power Athletes
It has been suggested that high amounts of total serum testosterone levels correlate with
higher lean body mass, lowered fat mass, greater muscle strength, and faster recovery. These
suggestions drive athletes and body builders to find ways to raise their testosterone
levels. Many athletes and bodybuilders look to alternative methods to anabolic steroids in
order increase their testosterone levels without legal repercussions or physiological side
effects. Herbs and other plant extracts have been introduced as a possible source to
naturally boost testosterone levels. Research supporting the use of herbs and plant extracts
has been shown to be equivocal. However, evidence in studies with hypogonadal men suggests
that longjack root may naturally boost testosterone levels.
Onnit Labs, LLC has packaged this supplement (T+) which claims it can naturally boost
testosterone and lower estrogen levels and subsequently improve performance. This product is
a powder (11g) that is mixed with 16 oz of water and consumed 20 minutes prior to anaerobic
workouts, such as high intensity weight training.
T+ is a multi-ingredient supplement that consists of vitamins B5 and B6, magnesium aspartic
acid, mucuna pruriens, longjack root, nettle root, red clover luteolin, resveratrol, beta-
alanine, branch chain amino acids, L- glutamine, Bioperine, and Fibersol 2.
The active ingredients purported to boost plasma testosterone levels are mucuna pruriens,
longjack root, and magnesium aspartic acid. The active ingredients claimed to lower plasma
estrogen concentrations are red clover, luteolin, resveratrol and nettle root. All other
ingredients (Branch Chain Amino Acids and Beta-Alanine) have been documented to improve
exercise performance.
It is hypothesized that there will not be any physiological changes after supplementation of
T+. It is also hypothesized that performance will not be affected by the supplementation of
T+.
The purpose of this study is to examine the physiological and performance effects of T+ on power athletes. ;
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Basic Science
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