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Vitamin D is crucial for musculoskeletal health, as it plays an important role in the regulation of bone and mineral metabolism, and it can prevent and cure nutritional rickets and osteomalacia. In addition, vitamin D receptor (VDR) expression in almost all human cells suggests, or even documents, a more widespread role of vitamin D for overall health, a notion that is supported by several experimental and epidemiological studies. While there still exist knowledge gaps and controversy regarding potential extra-skeletal effects of vitamin D, there is a wide consensus that the high worldwide prevalence of vitamin D deficiency is of concern and requires actions to improve this situation.
Authority and/or Country or Region (Year) |
Target Population | Age (Years) | Oral Vitamin D (IU) | Reference |
---|---|---|---|---|
Endocrine Society (2011) USA |
General population | 19–70 | 600–2000/day | Holick et al. [14] |
>70 | 800–2000/day | |||
Pregnant and lactating women | 600–2000/day | |||
Obese individuals/Patients on anticonvulsants, glucocorticoids, antifungals, AIDS medications | 2–3 times more | |||
DACH (2012) Germany/Austria/Switzerland |
General population | >18 | 800/day | DGE [23] |
EVIDAS (2013) Central Europe |
General population | >18 | 800–2000/day | Płudowski et al. [21] |
Obese individuals and elderly | 1600–4000/day | |||
Prevention of pregnancy and fetal development complications |
>16 | 1500–2000/day | ||
Night workers and dark skin pigmentation | 1000–2000/day | |||
EFSA (2016) Europe |
General population | >18 | 600/day | EFSA [24] |
Russia (2016) | General population | >18 | 800–1000/day | Pigarova et al. [25] |
Pregnant women | 800–2000/day | |||
Poland (2018) | General population | 19–75 | 800–2000/day | Rusińska, Płudowski et al. [26] |
Obese individuals | 19–75 | 1600–4000/day | ||
General population | >75 | 2000–4000/day | ||
Obese individuals | >75 | 4000–8000/day | ||
Pregnant and lactating women | 2000/day | |||
Belarus (2013) | General population | >18 | 800–2000/day | Rudenko [27] |
Hungary (2012) | General population | >18 | 1500–2000/day | Takács et al. [22] |
Pregnant and lactating women | 1500–2000/day | |||
Bulgaria (2019) | General population | >19 | 600–2000/day | Borisova et al. [28] |
Pregnant and lactating women | 600–2000/day | |||
Patients on anticonvulsants, glucocorticoids, antifungals | 2–3 times more | |||
Slovakia (2018) | Postmenopausal osteoporosis patients | >50 | 800–1000/day | Payer et al. [29] |
Authority and/or Country or Region (Year) |
Target Population | Oral Vitamin D for Treatment (IU) | Treatment Duration |
25(OH)D Target Concentration nmol/L (ng/mL) |
Oral Vitamin D for Maintenance (IU) |
Reference |
---|---|---|---|---|---|---|
Endocrine Society (2011) USA |
General population |
50,000/week or 6000/day |
8 weeks | 75 (30) |
1500–2000/day | Holick et al. [14] |
Obese individuals/Patients on anticonvulsants, glucocorticoids, antifungals, AIDS medications | 2–3 times more; at least 6000–10,000/day | 3000–6000/day | ||||
EVIDAS (2013) Central Europe |
General population |
50,000/week or 7000–10,000/day |
4–12 weeks | 75–125 (30–50) |
a maintenance dose may be instituted | Płudowski et al. [21] |
Italy (2018) | General population |
50,000/week or 5000/day |
8 weeks | >75 (>30) |
50,000 IU twice per month or 1500–2000 IU/day |
Cesareo et al. [30] |
Russia (2016) | General population |
25(OH)D < 50 nmol/L (<20 ng/mL): | >75 (>30) |
1000–2000/day or 6000–14,000/week |
Pigarova et al. [25] | |
50,000/week or | 8 weeks | |||||
200,000/month or | 2 months | |||||
150,000/month or | 3 months | |||||
6000–8000/day | 8 weeks | |||||
25(OH)D < 75 nmol/L (30 ng/mL): |
||||||
50,000/week or | 4 weeks | |||||
200,000 or | single dose | |||||
150,000 or | single dose | |||||
6000–8000/day | 4 weeks | |||||
Poland (2018) | General population |
6000/day | 12 weeks or until a 25(OH)D concentration of 75 nmol/L (30 ng/mL) is reached |
>75–125 (>30–50) |
maintenance dose i.e., a prophylactic dose recommended for the general population (see Table 1) | Rusińska, Płudowski et al. [26] |
Belarus (2013) | General population |
25(OH)D < 25 nmol/L (<10 ng/mL): 2000 to 10,000/day |
4–12 weeks | 75–200 (30–80) |
800–2000 IU/day | Rudenko [27] |
25(OH)D 25–50 nmol/L (10–20 ng/mL): 800 to 4000/day |
1 year | |||||
Hungary (2012) | General population |
50,000/week or | 4–8 weeks | 75 (30) |
1500–2000/day | Takács et al. [22] |
30,000/week or | 6–12 weeks | |||||
2000/day | 12 weeks | |||||
Bulgaria (2019) | General population |
To maintain bone health: 1000–2000/day |
- | 50 (20) |
maintenance dose i.e., a prophylactic dose recommended for the general population (see Table 1) | Borisova et al. [28] |
For extra–skeletal effects: 2000–4000/day |
- | 75–110 (30–44) |
Consensus Statement | Consensus Voting Scale | Level of Agreement |
---|---|---|
In healthy adults without other risk factors, a supplementation of 800–2000 IU/day, for those who want to achieve a targeted/measured 25(OH)D concentration, should be considered during wintertime (mainly November-April) due to insufficient endogenous dermal vitamin D synthesis and depending on the body weight. Due to decreased skin synthesis in elderly (>65 years), a supplementation of 800–2000 IU/day is recommended throughout the year. In hospitalized/institutionalized individuals, a supplementation of 800–2000 IU/day is recommended throughout the year. Women planning a pregnancy should start or maintain the vitamin D supplementation as recommended for healthy adults without other risk factors (800–2000 IU/day). The vitamin D supplementation should be continued throughout pregnancy and lactation. In certain patients/individuals or conditions 2–3 times higher vitamin D dosages, without using vitamin D doses above the UL of 4000 IU/day, are recommended for prevention compared to healthy adults without other risk factors: Malabsorption (e.g., cystic fibrosis, inflammatory bowel diseases, bariatric surgery, radiation enteritis) Obesity (BMI ≥ 30 kg/m2) Dark skin pigmentation As vitamin D metabolites are stored in fat and other tissues and gradually released into the blood circulation, a daily or weekly or monthly supplementation regimen is equally effective and safe, if monthly doses are not exceedingly high, for the prevention of vitamin D deficiency. A tailored approach for vitamin D administration, involving the patients’ preferences of the supplementation regimen (daily, weekly, monthly) might enhance the adherence to preventive vitamin D supplementation. For the prevention of vitamin D deficiency, the supplementation of oral cholecalciferol (vitamin D3) is recommended. |
9 (strongly agree) | 30% |
8 | 20% | |
7 (agree) | 50% | |
6 | 0% | |
5 (neutral) | 0% | |
4 | 0% | |
3 (disagree) | 0% | |
2 | 0% | |
1 (strongly disagree) | 0% | |
Overall agreement 100%, consensus endorsed |