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Journal Article
Randomized Controlled Trial
Vitamin D 3 supplementation does not modify cardiovascular risk profile of adults with inadequate vitamin D status.
European Journal of Nutrition 2017 March
PURPOSE: The Nutrition Societies in Germany, Austria, and Switzerland recommend a daily intake of 20 µg vitamin D3 for adults when endogenous synthesis is absent. The current study aimed to elucidate whether this vitamin D3 dose impacts cardiovascular risk markers of adults during the winter months.
METHODS: The study was conducted in Halle (Saale), Germany (51o northern latitude) as a placebo-controlled, double-blinded, randomised trial (from January to April). A total of 105 apparently healthy subjects (male and female, 20-71 years old) were included. Subjects were randomly allocated to two groups. One group received a daily 20-µg vitamin D3 dose (n = 54), and the other group received a placebo (n = 51) for 12 weeks. Outcome measures included blood pressure, heart rate, concentrations of renin, aldosterone, serum lipids and vascular calcification markers, and haematologic variables such as pro-inflammatory monocytes.
RESULTS: Blood pressure and systemic cardiovascular risk markers remained unchanged by vitamin D3 supplementation, although serum 25-hydroxyvitamin D3 increased from 38 ± 14 to 73 ± 16 nmol/L at week 12. The placebo and vitamin D groups did not differ in their final cardiovascular risk profile.
CONCLUSION: Daily supplementation of 20 µg vitamin D3 during winter is unlikely to change cardiovascular risk profile.
METHODS: The study was conducted in Halle (Saale), Germany (51o northern latitude) as a placebo-controlled, double-blinded, randomised trial (from January to April). A total of 105 apparently healthy subjects (male and female, 20-71 years old) were included. Subjects were randomly allocated to two groups. One group received a daily 20-µg vitamin D3 dose (n = 54), and the other group received a placebo (n = 51) for 12 weeks. Outcome measures included blood pressure, heart rate, concentrations of renin, aldosterone, serum lipids and vascular calcification markers, and haematologic variables such as pro-inflammatory monocytes.
RESULTS: Blood pressure and systemic cardiovascular risk markers remained unchanged by vitamin D3 supplementation, although serum 25-hydroxyvitamin D3 increased from 38 ± 14 to 73 ± 16 nmol/L at week 12. The placebo and vitamin D groups did not differ in their final cardiovascular risk profile.
CONCLUSION: Daily supplementation of 20 µg vitamin D3 during winter is unlikely to change cardiovascular risk profile.
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