Dose Levels for B-Complex Vitamins

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RDA’s, ODA’s and Therapeutic
Dose Levels for B-Complex Vitamins

Nutrient B-1 Thiamin	RDA 1.5 mg	ODA 50 – 100mg	Therapeutic Dose* 3-8 grams
B-2 Riboflavin	1.6mg	25-50mg	300-500mg
B-3 Niacin	20.0mg	500mg	1500mg
B-5 Pantothenic Acid	6.0mg	200-250mg	500-900mg
B-6 Pyrodoxine	2.0mg	50-100mg	300-400mg
B-12 Cobalamine	2.0mcg	500-1000mcg	up to 5,000mcg
Folic Acid	400.0mcg	400-1,000mcg	2-5mg
Biotin	not established	1-3mg	5mg

*When taking therapeutic doses of one B vitamin, the entire B-Complex and adequate magnesium should be taken at a different time during the day to avoid nutritional imbalances and aid in assimilation of the large dose.

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