NCT02535910

Effect of vitaminD3 or 25(OH)D3 Fortified Dairy on Vitmain D Status and CVD Risk Markers

Fortification of Milk and Butter With Either vitaminD3 or 25(OH)D3: The Effect on Vitamin D Status and Cardiovascular Disease Risk Markers in Humans

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 18 (estimated)
• Sponsor: University of Reading · Academic / Other
• Sex: Male
• Age: 30 Years – 65 Years
• Healthy volunteers: Accepted

Summary

This study aims to compare the acute effect of consuming milk and butter fortified with either vitamin D3 or 25 (OH) D3 on serum/plasma vitamin D status in humans. In addition, the effect of vitamin D3 or 25 (OH) D3 in milk and butter on certain CVD risk markers and cognitive function will be examined.

Detailed description

There is mounting evidence to show that vitamin D deficiency may increase the risk of many common and serious diseases, including osteoporosis, cardiovascular disease, some cancers and type 1 diabetes (Holick and Chen, 2008). Hypovitaminosis D is now prevalent in the UK general population. Due to diet and lifestyle changes and the use of sun block products most people do not endogenously synthesise sufficient vitamin D from sunlight exposure (Hyppönen and Power, 2007). Therefore, vitamin D intakes from dietary sources have become very important, however this is limited as there are only a few foods naturally rich in vitamin D. Some countries (e.g. USA, Canada) fortify milk with vitamin D which results in milk being the major contributor to vitamin D intake. Vitamin D3 is the most common form used for the fortification of currently fortified foods. However, there is now some evidence that 25(OH)D3 can increase vitamin D status of humans more effectively than vitamin D3 (Bischoff-Ferrari et al, 2012; Cashman et al, 2012). To our knowledge, very few human intervention studies have compared the efficacy of 25(OH)D3 versus vitamin D3 to increase vitamin D status, and there has been no acute human study to examine the effect of the both forms of vitamin D fortified dairy products on vitamin D status in humans.

Conditions

• Hypovitaminosis D
• Cardiovascular Diseases

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	vitamin D3	Subjects are asked to consume a breakfast rich in 20 µg vitamin D3
DIETARY_SUPPLEMENT	25(OH) D3	Subjects are asked to consume a breakfast rich in 20 µg 25(OH)D3
DIETARY_SUPPLEMENT	Control	Subjects are asked to consume a breakfast without vitamin D

Timeline

• Start date: 2015-08-01
• Primary completion: 2015-12-01
• Completion: 2016-05-01
• First posted: 2015-08-31
• Last updated: 2015-09-24

Locations

1 site across 1 country: United Kingdom