This vitamin D product was selected by researchers for a new major study

BBC report on the study

BBC News has made a report that explains the background for focusing on vitamin D in relation to the immune system.

Chosen because of its extensive documentation

For a period of six months, the approximately 6,000 study participants will be given either vitamin D in two different strengths or serve as a control group.
All participants will be tested at baseline and are eligible for inclusion provided their vitamin D blood status is below the recommended level.

Half the participants – the control group – will be advised to follow the official guidelines that recommend taking a daily 10-microgram supplement of vitamin D. These participants will not be monitored for compliance.

The remaining participants will be divided in two groups with one group taking capsules with 20 micrograms of vitamin D daily for six months while the other half will be taking capsules with 80 micrograms of vitamin D. When the study is terminated, vitamin D levels will be measured again in the two supplemented groups.
The British study has received funding from Fischer Family Trust, a charity organization specialised in supporting medical research and education. It is also supported by Barts Charity and the Aim Foundation.  
The scientists have chosen a supplement with vitamin D from a danish company because previously published studies show that this brand is easily absorbed in the blood.

Norwegian studies document good bioavailability

One study was conducted by researchers from Oslo University and looked at vitamin D and muscle strength. The other study is also carried out by Norwegian scientists and looked at vitamin D and its role in the well-being of school pupils.
Both studies used D-Pearls and showed that the product resulted in significant increases in vitamin D blood levels, indicating that the supplement has good bioavailability.

Quality determines the outcome

For over 30 years, Pharma Nord, as a frontrunner, has manufactured bioavailable supplements designed for scientific research. It is critical for the outcome of a study that the active compound is effectively absorbed in blood and tissue.
Over the years, Pharma Nord has supplied nutritional supplements for hundreds of clinical trials. Two of the most noteworthy studies are Q-Symbio (Bio-Qinon Q10) and KiSel-10 (Bio-Qinon Q10 and SelenoPrecise).
The two preparations that were used in these groundbreaking research projects are known by scientists because of their documented bioavailability. The studies are published in leading medical journals and are often used as leverage for preventative use of nutritional supplements.