The correct dosage of vitamin D in infants, children and adults is very important, because both its deficiency and excess may disturb the proper functioning of the body. Vitamin D supplementation varies between children, adults, and pregnant women, as well as those at risk of deficiency, incl. obese, working at night and with dark skin. Check the vitamin D intake standards.

The standards of vitamin D consumptionin the recommended daily dose in dietary supplements were determined by the Team for Dietary Supplements in the Chief Sanitary Inspectorate. These are the recommended doses of vitamin D both for he althy people and for those at risk of vitamin D deficiency. These guidelines have been developed for all age groups of the Polish population.

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As informed by the Chief Sanitary Inspectorate, according to the nutritional standards for the Polish population which it is 10 µg).

Vitamin D - dosage for newborns and infants

  • until the end of the 6th month of life - 400 IU / day (10.0 µg / day) - vitamin D supplementation should be started from the first days of a child's life, regardless of the diet (breast / formula milk);
  • from the 7th month to the 12th month of life - 400-600 IU / day (10.0-15.0 µg / day) - depending on the dietary sources of vitamin D;

Vitamin D - dosage in children and adolescents

  • from 1 year old to 18 years old - 600-1000 IU / day (15.0-25.0 µg / day)

The dose depends on your body weight. Supplementation should be used in the months of September - April or throughout the year, if in the summer months it is not possible to ensure sufficient skin synthesis of vitamin D.

Vitamin D - dosage in adults (>18 years old)

"New scientific data show that supplementation with vitamin D in doses above 10 µg / day in people without deficiency of this vitamin may be associated with increased mortality from cancer and other causes2.

Taking into account the increasing popularity of fortification of food products and biofortification with vitamin D, the consumption of this vitamin with the diet is increasing. Assessmentsafety of vitamin D consumption, taking into account both dietary supplements, fortification and biofortification was presented in the work of 20223 . Data from Sweden, taking into account the above-mentioned sources of vitamin D in the diet, showed exceeding the UL level for this vitamin (103.9 µg / day) at the level of the 95th percentile "- reads the announcement of the Chief Sanitary Inspectorate.

In view of the above data, the Team for Dietary Supplements operating at the Sanitary and Epidemiological Council concluded that a safe dose of vitamin D is a maximum of 2000 IU (50 µg) / day.

  • from September to April - 800-2000 IU / day (20.0-50.0 µg / day);
  • from May to August - 800-2000 IU / day (20.0-50.0 µg / day) - only when proper skin synthesis of vitamin D cannot be guaranteed.

Supplementation depends on body weight. Before use, however, it is advisable to perform a 25- (OH) D blood test and consult your doctor or pharmacist for the results.

Vitamin D - dosage in the elderly (>65 years)

  • 800-2000 IU / day (20,050.0 µg / day)

Seniors should receive vitamin D throughout the year due to its reduced skin synthesis. Supplementation depends on body weight.

Vitamin D - dosage for pregnant and lactating women

  • women planning pregnancy should use vitamin D supplementation in the same doses as adults.
  • 1500-2000 IU / day (37.5-50.0 µg / day) - supplementation should be started not later than from the second trimester of pregnancy. The gynecologist should advise the patient to consume vitamin D soon after the pregnancy is confirmed.

The goal of supplementation is to achieve a 25 (OH) D level in the range of 30-50 ng / ml (75-125 nmol / l). Therefore, this concentration should be monitored regularly with blood tests.

Vitamin D - dosage in premature newborns

Vitamin D should be administered as early as possible, i.e. as soon as enteral nutrition is possible.

  • 400-800 IU / day (10.0-20.0 µg / day)

Supplementation should be continued until the adjusted age of 40 weeks is achieved. Then, give the baby vitamin D in doses recommended for he althy newborns.

Vitamin D - dosage in obese children and adolescents

People with a high BMI index tend to have a low vitamin D level. Because the sun's vitamin is fat-soluble, it is retained by the subcutaneous fat, which makes it difficult to transport it into the blood. In addition, it has been shown that obese individuals increase their vitamin D levelsafter exposure to UVB radiation it is 57 percent. lower than in people with normal body weight.

  • from September to April - 1200-2000 IU / day (30.0-50.0 µg / day)

Supplementation can be used throughout the year, if adequate vitamin D synthesis cannot be ensured in the summer. The specific dose depends on the degree of obesity. Before use, however, it is advisable to perform a 25- (OH) D blood test and consult the test result with a doctor or pharmacist. (GIS)

Vitamin D - dosage in obese adults and the elderly

Obese people and seniors are mainly exposed to vitamin D deficiency in the body, especially in the period of lack of exposure to sunlight. "Previous guidelines stated that these people are recommended vitamin D supplementation at a dose of up to 4,000 IU / day (100 µg / day)4 , however new scientific data indicate that vitamin D supplementation in doses above 10 µg / day in people without deficiency of this vitamin may be associated with increased mortality from neoplastic diseases and other causes2"- reads the GIS message. Therefore:

  • the safe dose is 2000 IU / day (up to 50.0 µg / day)

All year round. The dose depends on the degree of obesity. Before use, however, it is advisable to perform a 25- (OH) D blood test and consult the test result with a doctor or pharmacist. (GIS)

Vitamin D - dosage for people working at night and with dark skin

People who work at night should consume more vitamin D due to limited exposure to sunlight. On the other hand, people with dark skin complexion, because they produce vitamin D about 6 times slower than people with fair skin. As a consequence, they can have up to half the concentration of vitamin D in the blood than people with fair skin.

  • 1000-2000 IU / day (25.0-50.0 µg / day)

All year round. The dose depends on your body weight.

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