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According to the Mayo Clinic the recommended dietary amounts of vitamin B12 vary. Experts recommend 2.4 micrograms a day if you are 14 or older, 2.6 micrograms if you are pregnant and 2.8 micrograms a day if you are brea... More »

www.reference.com Health Medications & Vitamins Vitamins & Supplements

The recommended daily intake of Vitamin B12 for persons 14 years of age and older is at least 2.4 micrograms. Data from the National Health and Nutrition Examination Survey indicates the median daily intake among U.S. re... More »

www.reference.com Health Medications & Vitamins Vitamins & Supplements

The Food and Nutrition Board's recommended daily allowance of vitamin D is 600 IU for people between the ages of 1 and 70, according to the Mayo Clinic. Women who are pregnant or breastfeeding, as well as people older th... More »

www.reference.com Health Nutrition & Diets Nutritional Amounts & Limits
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The standard dose of vitamin B-12 depends on the age and circumstance of the person and varies between 1 and 25 micrograms per day, reports WebMD. Much higher doses have been used in scientific studies on vitamin B-12 de... More »

www.reference.com Health Medications & Vitamins Vitamins & Supplements

The recommended daily intake of Vitamin B12 for persons 14 years of age and older is at least 2.4 micrograms. Data from the National Health and Nutrition Examination Survey indicates the median daily intake among U.S. re... More »

www.reference.com Health Medications & Vitamins Vitamins & Supplements

The recommended dietary amount of vitamin B-12 for people age 14 and up is 2.4 micrograms per day, according to Mayo Clinic. Pregnant women require 2.6 micrograms of vitamin B-12 daily, while breast-feeding mothers need ... More »

www.reference.com Health Medications & Vitamins Vitamins & Supplements

The recommended dietary allowance of vitamin B-12 for adults is 2.4 micrograms per day, reports MedlinePlus. Pregnant women should increase their vitamin B-12 intake to 2.6 micrograms per day, and women should increase t... More »

www.reference.com Health Medications & Vitamins Vitamins & Supplements