How Much Vitamin B6 Is Needed?
Adults need from 1.0 to 1.7 mg vitamin B6 per day. During pregnancy the amount needed rises to 1.9 and during breastfeeding, rises further to 2.0 mg. Those who use oral contraceptives, on fasts or weight loss diets have experienced cardiac failure or are showing signs of aging may need more than the recommended amount. However, increasing the amount of vitamin B6 without increasing the amount of other B vitamins in the proper ratio will result in other deficiencies.