Vitamin D dosage for adults - Subject

Vitamin D dosage for adults

Below we show the Recommended Dietary Allowance (RDA) for vitamin D that must be obtained daily, as well as the recommended doses of vitamin D in the event of a deficiency:

Recommended daily dose

The recommended dietary amount of vitamin D depends on how much a person is exposed to sunlight, and it is difficult to determine due to the variation in sun exposure from one person to another based on several factors such as the time of year and place of residence. For this reason, the recommendations assume that the person is exposed to the minimum level of sunlight. According to the recommendations of the Institute of Medicine, the recommended dietary amount of vitamin D to improve bone health is as follows:

• 600 international units (IU) for those between 1-70 years old.
• 800 IU for people over the age of 70.

Vitamin D dose in case of deficiency

The Endocrine Society recommends that adults with a vitamin D deficiency of less than 30 ng / ml take vitamin D doses to restore normal levels of it, and the doses are as follows:

• daily dose: It is recommended to take 1500-2000 IU of Vitamin D daily.
• Weekly or monthly dose: Take vitamin D at a dose of 50,000 IU weekly or monthly.

Common questions about Vitamin D

Here we answer the most common questions about vitamin D:

What are the sources of vitamin D?

Vitamin D can be obtained from the following natural sources:

• Sun exposure: To obtain the daily need of vitamin D, it is usually sufficient to expose the arms and legs to sunlight for a period of 5-30 minutes between ten in the morning and three in the afternoon for people with light skin, while those with dark skin may need exposure to the sun for a little longer.
• Eat foods that contain vitamin DAmong the foods that contain vitamin D are the following:
  • Fatty fish, such as salmon.
  • whale liver oil.
  • Milk and cereals fortified with vitamin D: These products are available in some countries.
  • Egg yolk: Eggs contain small amounts of vitamin D.

Can a high level of vitamin D cause toxicity?

Yes, vitamin D poisoning can occur, but this is rare. It cannot occur as a result of taking vitamin D from its food sources or exposure to sunlight, but is usually the result of taking large doses of nutritional supplements containing vitamin D, as poisoning occurs when it is taken at a dose of 60,000 international units per day for several months. Vitamin D toxicity may lead to hypercalcemia, which together cause the following symptoms:

• Nausea.
• constipation.
• increased urination
• increased thirst
• general weakness.
• Anorexia.
• mental confusion
• Ataxia: (in English: Ataxia), a neurological condition that may cause stuttering.