In 2010, the Institute of Medicine at the National Academy of Sciences established revised Dietary Reference Intake (DRI) recommendations for vitamin D based on new research in this area. The following Adequate Intake (AI) levels for vitamin D were established in 2010 for infants:
Infants 0-6 months: 10 micrograms (400 IU) per day
Infants 6-12 months: 10 micrograms (400 IU) per day
The following Recommended Dietary Allowances (RDAs) were established for children, teenagers, and adults:
Children 1-13 years: 15 micrograms (600 IU)
Teenagers 14-18 years: 15 micrograms (600 IU)
Adults 19-70 years: 15 micrograms (600 IU)
Adults above 70 years: 20 micrograms (800 IU)
Pregnant and lactating women: 15 micrograms (600 IU)
While we were glad to see the the National Academy of Sciences making revised public health recommendations in 2010 for increased intake of vitamin D, we do not believe that all health and lifestyle factors evaluated in research studies on vitamin D research were fully addressed in the revised recommendations. Over the past 15 years, more than 10,000 studies on vitamin D have been published in research journals. These studies have convincingly shown that: (1) we need much more vitamin D than we previously thought; (2) lifestyle trends have significantly reduced our exposure to sunlight; (3) prevalence of vitamin D deficiency is far greater than previously estimated, and (4) more vitamin D is required to remedy deficiency than can be obtained in a standard diet.
Infants 0-6 months: 10 micrograms (400 IU) per day
Infants 6-12 months: 10 micrograms (400 IU) per day
The following Recommended Dietary Allowances (RDAs) were established for children, teenagers, and adults:
Children 1-13 years: 15 micrograms (600 IU)
Teenagers 14-18 years: 15 micrograms (600 IU)
Adults 19-70 years: 15 micrograms (600 IU)
Adults above 70 years: 20 micrograms (800 IU)
Pregnant and lactating women: 15 micrograms (600 IU)
While we were glad to see the the National Academy of Sciences making revised public health recommendations in 2010 for increased intake of vitamin D, we do not believe that all health and lifestyle factors evaluated in research studies on vitamin D research were fully addressed in the revised recommendations. Over the past 15 years, more than 10,000 studies on vitamin D have been published in research journals. These studies have convincingly shown that: (1) we need much more vitamin D than we previously thought; (2) lifestyle trends have significantly reduced our exposure to sunlight; (3) prevalence of vitamin D deficiency is far greater than previously estimated, and (4) more vitamin D is required to remedy deficiency than can be obtained in a standard diet.
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