Always confirm your B12 level through a blood test before committing to a package if your levels are normal, the B12 component will not change your weight
Presented for research literature review only Weller PF et al
Preparation and properties of 3-cyano pyridine ad(+), a new analogue of nad(+) [PMID: 11947468] Laboratory literature summary: Preparation and properties of 3-cyano pyridine ad(+), a new analogue of nad(+)
Potential benefits for patients: Better recovery, muscle mass, fat loss, sleep, and vitality
2017;11(11):CD011564
Otherwise, organ meats and seafoods are the best sources, followed by muscle meats, cereals and grains, although the selenium content of the latter varies widely with location, being towards or at the bottom of the range in the UK and Europe but at the top in North America, most notably in Canada (see Fig