For every 1mg of Tryptophan used, 60mg of Niacin is produced. The discovery of the vitamin was in 1937 when scientist Conrad Elvehjem identified it was able to prevent pellagra or deficiency of Vitamin B3.
Vitamin B3 Nicotinamide 500mg | Non-Flush High Strength Vitamin B3 | 120 Vegan Capsules | G&G Vitamins (Pack of 2)
Oxford Vitality Vitamin B3 16mg Tablets | Niacin Supplement for Energy and General Health Support | Easy to Take Daily Tablets | UK Manufactured | Pack of 500
Niacin Vitamin B3 100mg Tablets by Natural Factors 90
Healthspan Optiflex Glucosamine HCI 1,325mg with Vitamin C | Shellfish Free Vegan Tablets for Joint Health | 40% More glucosamine Than Glucosamine Sulphate | Added Vitamin C (120 Tablets)
Selenium A C E Vitamin A Vitamin E Vitamin C 120 Tablets
