Bu, B., Ashwood, P., Harvey, D., King, I
Quality manufacturers test every batch to verify: Purity (no contaminants or heavy metals) Potency (actual NAD+ precursor content matches label claims) Stability (product maintains potency through shelf life) Look for companies that publish Certificates of Analysis or have NSF Certified for Sport testing, which screens for banned substances and verifies label accuracy
Given the increase in physical activity levels by the participants, the energy intake may have also increased, which could have resulted in changes in the dietary macronutrient composition
Glutathione For Optimal Cognitive Function and Mental Health The unrivaled antioxidant capacity of glutathione makes it an ideal supplement for preserving and enhancing cognitive function as well as for defeating depression, anxiety, and other mental health challenges