While NR and NMN can be found in trace amounts in various foods, though, one can't eat enough of anything to boost NAD+ levels.
Ngenkathi i-NR ne-NMN ingatholakala kumanani wokulandela ekudleni okuhlukahlukene, noma kunjalo, umuntu akanakudla okwanele kwanoma yini ukukhulisa amazinga e-NAD +.