2016 Oct 18;9(10):1506-1517
The discussion covers how to measure and track progress in zone 2, VO max targets and age-adjusted goals, planning for the marginal decade, and how to balance zone 2 with higher-intensity training across different weekly volumes
Claims about treating osteoarthritis, repairing the gut lining, reducing inflammatory bowel disease, regulating immunity or reversing skin aging require a level of evidence and regulatory status that ordinary supplement marketing usually does not have
The primary benefit is its ability to be used multiple times over long durations after opening, thanks to the addition of 0.9% benzyl alcohol
The FDAs stated concerns include the potential for immune reactions when a synthetic peptide is injected, difficulties in verifying the purity and composition of the compound, and insufficient safety data for the routes of administration being used [15]