Medical guidance is essential before starting NAD supplementation, particularly for: Individuals with pre-existing health conditions Those taking prescription medications Anyone considering doses above typical supplement ranges People experiencing unexpected symptoms after starting supplementation When to seek medical help: Call 999 immediately for severe allergic reactions or anaphylaxis Contact NHS 111 for urgent advice if you cannot reach your GP Consult your GP promptly for: Persistent gastrointestinal symptoms lasting more than a few days Jaundice, dark urine, or severe abdominal pain (potential liver concerns) Skin rashes or allergic reactions Worsening of existing medical conditions Any concerning or unexpected symptoms If you experience any suspected adverse reactions to NAD supplements, report them through the MHRA Yellow Card scheme (yellowcard.mhra.gov.uk)

Talk it over with your healthcare provider to decide on the best approach for achieving and maintaining your weight loss goals
But some infectious disease and emergency room doctors say they are seeing more adverse reactions associated with the facilities
Koffert J, Honka H, Teuho J, Kauhanen S, Hurme S, Parkkola R, Oikonen V, Mari A, Lindqvist A, Wierup N, et al