NAD is vital for youth and energy, but a growing body of research suggests that boosting it with precursors like NMN and NR might be a double-edged sword. ⚠️ 🤯While it fuels healthy cells, multiple studies now show that in the presence of certain cancers (prostate, breast, skin), it might also accelerate tumor growth. Learn why your body's natural decline in NAD with age might actually be a protective mechanism. #johndouillard #lifespa #ayurveda #naturalhealth #NMN #NAD #Longevity #ProstateHeal