Makes the skin firm, smooth, soft and glowing, has an obvious anti-aging effect
higher protein intake during energy restriction preserves lean mass
Apart from this, there is a substantial correlation between the ratio of Firmicutes to Bacteroidetes in the gut microbiota and hypertension (129)
Direct NAD is mainly used in clinical or research settings, while NMN and NR are widely available as supplements
Customer support is accessible through the Nutricost website and was responsive to our inquiries about a certificate of analysis (COA), which is available upon request with a lot number
The human results are mixed, with small open-label studies encouraging but the controlled phase 2 OVERTURE trial missing its primary endpoint, and the larger pivotal trial has finished enrolling with results pending, so for now it is best read as mechanistically promising and clinically unproven