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Infants need 400 IU of vitamin D to prevent rickets – meta-analysis Feb 2019

Serum 25-hydroxyvitamin D response to vitamin D supplementation in infants: a systematic review and meta-analysis of clinical intervention trials

European Journal of Nutrition, pp 1–11, https://doi.org/10.1007/s00394-019-01912-x
Armin Zittermann Stefan PilzHeiner K. Berthold

VitaminDWiki

Infant-Child category starts with

Having a good level of vitamin D cuts in half the amount of:

Need even more IUs of vitamin D to get a good level if;

  • Have little vitamin D: premie, twin, mother did not get much sun access
  • Get little vitamin D: dark skin, little access to sun
  • Vitamin D is consumed faster than normal due to sickness
  • Older (need at least 100 IU/kilogram, far more if obese)
  • Not get any vitamin D from formula (breast fed) or (fortified) milk
    Note – formula does not even provide 400 IU of vitamin D daily

Infants-Children need Vitamin D

  • Sun is great – well known for 1,000’s of years.
    US govt (1934) even said infants should be out in the sun
  • One country recommended 2,000 IU daily for decades – with no known problems
  • As with adults, infants and children can have loading doses and rarely need tests
  • Daily dose appears to be best, but monthly seems OK
  • Vitamin D is typically given to infants in the form of drops
       big difference in taste between brands
       can also use water-soluable form of vitamin D in milk, food, juice,
  • Infants have evolved to get a big boost of vitamin D immediately after birth
    Colostrum has 3X more vitamin D than breast milk - provided the mother has any vitamin D to spare
  • 100 IU per kg of infant July 2011, Poland etc.
    1000 IU per 25 lbs.jpg
    More than 100 IU/kg is probably better

Getting Vitamin D into infants

Many infants reject vitamin D drops, even when put on nipple
I speculate that the rejection is due to one or more of: additives, taste, and oils.
Infants have a hard time digesting oils, 1999  1997   and palm oils W.A. Price 1 2 3
Coconut oil, such as in D-Drops, is digested by infants. 1,   2   3
Bio-Tech Pharmacal Vitamin D has NO additves, taste, oil
One capsule of 50,000 Bio-Tech Pharmacal Vitamin D could be stirred into monthly formula
   this would result in ~1,600 IUs per day for infant, and higher dose with weight/age/formula consumption

Overview of Rickets and vitamin D contains the following summary

Vitamin D deficiency is the cause of most rickets
Rate of rickets is usually < 0.1% of births, unless dark skin or breastfed
Rate of rickets has greatly increased with the drop in vitamin D levels during the past 40 years
400 IU can prevent/treat most rickets (Turkey gave vitamin D to EVERY child)
More than 400 IU may be needed
A low serum level of vitamin D does not indicate rickets
Rate of rickets in some countries varies from 10% to 70% (typically poor health overall)
Rickets was identified 400 years ago and treatments were determined 100 years ago
Rickets is strongly associated with severe breathing problems (weak ribs)
Bowed legs is not the primary indication of rickets (3 other indications of rickets are seen more often)
Vitamin D and Rickets consensus took 80 years

Rickets category has 113 items

Purpose
For the prevention of nutritional rickets, 400 IU vitamin D daily and circulating 25-hydroxyvitamin D (25OHD) concentrations > 50 nmol/L are recommended, whereas the toxicity threshold is set at 250 nmol/L. We synthesized the evidence for the effect of vitamin D supplementation on incremental 25OHD in infants up to 1 year of age.

Methods
We performed a systematic review and meta-analysis of intervention trials in several databases. A total of 87 records were identified for full-text review and 27 articles with 61 studies were included in the final analysis.

Results
The selected 61 studies included 1828 participants. Nineteen cohorts had already mean baseline 25OHD levels ≥ 50 nmol/L. The weighted mean difference in 25OHD following vitamin D supplementation was + 49.4 nmol/L (95% CI 43.6–55.3 nmol/L; P < 0.001). The increment was dose-dependent (P = 0.002), was higher in full-term than in pre-term infants (P < 0.001), was higher in infants with baseline 25OHD < 50 nmol/L as compared to ≥ 50 nmol/L (P = 0.001), and was marginally influenced by the 25OHD test procedure (P = 0.080). Vitamin D3 doses of 400 IU/day were sufficient to achieve 25OHD concentrations ≥ 50 nmol/L in most full-term infants. A 25OHD level of 250 nmol/L was not exceeded in ≥ 97.5% of infants at doses between 200 and 1200 IU/day, but potentially in ≥ 2.5% of infants at a dose of 1600 IU/day.

Conclusions
Vitamin D supplementation of 400 IU/day is sufficient for achieving 25OHD concentrations able to prevent nutritional rickets. A more personalized vitamin D dosing strategy would require 25OHD testing, but also assay standardization.

Created by admin. Last Modification: Tuesday February 5, 2019 16:08:29 GMT-0000 by admin. (Version 4)
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