Vitamin D Levels, Doses and Overdose

Know the facts on vitamin d levels, its doses and how much vitamin d you should take and effect of its overdose.

How much vitamin d should one take? The Adequate Intake (AI) levels of Vitamin D have been established by the U.S. Institute of Medicine of the National Academy of Sciences. The following are the current recommended adequate doses to meet physiological needs.

[Source: Institute of Medicine, Food and Nutrition Board - Dietary Reference Intakes. Washington, DC: National Academy Press, 1997]

What is Vitamin D
Vitamin D overdose & Side effects
Vitamin D deficiency
Vitamin D deficiency symptoms
Foods with Vitamin D
Health benefits of Vitamin D

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Vitamin D For Adults

IU = International Units

Male, female, pregnant/lactating women

Under the age of 50 years: 5 micrograms (200 IU or )

From 50-70 years-old: 10 micrograms daily (400 IU)

Over 70 years-old: 15 micrograms daily (600 IU)

Children (under 18 years old)

From birth to 50 years old: 5 micrograms per day (200 IU).

Children younger than one year should not exceed 25 micrograms (1,000 IU) per day.

Some experts are of the view that the current recommended AI levels are insufficient to meet physiological needs, particularly for individuals who do not receive regular sun exposure.

In 2008, the American Academy of Pediatrics (AAP) recommended the following:

Pregnancy and Breastfeeding

The mother's milk is deficient in vitamin D, it contains only about 25 IU per liter. AAP recommends that the infants on breast feed should, therefore, receive each day vitamin D supplements of 400 IU shortly after birth and continue until they consume ≥1,000 mL/day of vitamin D-fortified formula or whole milk. Consult your Doctor.

All non-breasted infants taking <1,000 mL/day of vitamin D-fortified milk or formula milk should receive each day vitamin D supplements of 400 IU.

Older children who do not obtain 400 IU/day through vitamin D-fortified milk and foods should take a 400 IU vitamin D supplement daily.

Vitamin D Overdose : Vitamin D Toxicity

The upper limit for vitamin D has been recommended as 50 micrograms (2,000 IU) per day for adults and 1,000 IU per day for infants, toxicities can occur with overdose, i.e. when taken in higher doses.

As vitamin D is stored in the body in fatty tissues and in the liver, an overdose (excessive intake) is harmful. The too much intake of vitamin d side effects may include nausea, vomiting, anorexia, thirst and drowsiness. Hypercalcaemia can occur due to the increased intestinal absorption and mobilization of calcium from bones. The cardiac and renal failure may occur.


	Know the facts on vitamin d levels, its doses and how much vitamin d you should take and effect of its overdose. How much vitamin d should one take? The Adequate Intake (AI) levels of Vitamin D have been established by the U.S. Institute of Medicine of the National Academy of Sciences. The following are the current recommended adequate doses to meet physiological needs. [Source: Institute of Medicine, Food and Nutrition Board - Dietary Reference Intakes. Washington, DC: National Academy Press, 1997] What is Vitamin D Vitamin D overdose & Side effects Vitamin D deficiency Vitamin D deficiency symptoms Foods with Vitamin D Health benefits of Vitamin D All Articles On Nutrition Foods High in Iron Calcium Rich Foods Soluble Fiber Foods Calories In Indian Food Foods High In Fiber Low Carb Foods Calories In Roti, Paratha Nutrition Guide Carbohydrates in Vegetables Lentils Nutrition Calories Vitamin D For Adults IU = International Units Male, female, pregnant/lactating women Under the age of 50 years: 5 micrograms (200 IU or ) From 50-70 years-old: 10 micrograms daily (400 IU) Over 70 years-old: 15 micrograms daily (600 IU) Children (under 18 years old) From birth to 50 years old: 5 micrograms per day (200 IU). Children younger than one year should not exceed 25 micrograms (1,000 IU) per day. Some experts are of the view that the current recommended AI levels are insufficient to meet physiological needs, particularly for individuals who do not receive regular sun exposure. In 2008, the American Academy of Pediatrics (AAP) recommended the following: Pregnancy and Breastfeeding The mother's milk is deficient in vitamin D, it contains only about 25 IU per liter. AAP recommends that the infants on breast feed should, therefore, receive each day vitamin D supplements of 400 IU shortly after birth and continue until they consume ≥1,000 mL/day of vitamin D-fortified formula or whole milk. Consult your Doctor. All non-breasted infants taking <1,000 mL/day of vitamin D-fortified milk or formula milk should receive each day vitamin D supplements of 400 IU. Older children who do not obtain 400 IU/day through vitamin D-fortified milk and foods should take a 400 IU vitamin D supplement daily. Vitamin D Overdose : Vitamin D Toxicity The upper limit for vitamin D has been recommended as 50 micrograms (2,000 IU) per day for adults and 1,000 IU per day for infants, toxicities can occur with overdose, i.e. when taken in higher doses. As vitamin D is stored in the body in fatty tissues and in the liver, an overdose (excessive intake) is harmful. The too much intake of vitamin d side effects may include nausea, vomiting, anorexia, thirst and drowsiness. Hypercalcaemia can occur due to the increased intestinal absorption and mobilization of calcium from bones. The cardiac and renal failure may occur.
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