When should B group be taken? Nutritionists reveal the benefits, side effects and correct way to eat B complex! #What is Group B? Vitamin B Complex, also known as vitamin B<a href=https://lifenutrients.tw/vitamin_b>b group</a>, includes eight water-soluble vitamins, including vitamin B1, B2, B3 (niacin), B5 (pantothenic acid), B6, B7