Sentences with phrase «calcidiol levels»

People with dark skin, however, should be careful to make sure that their calcidiol levels stay above 35 ng / mL year - round and use a supplement if necessary.

The research cited above, moreover, suggests that vitamin D would be stored in adipose tissue at these levels and released when calcidiol levels drop, as they would during the winter in temperate climates — an added bonus for those who wish to obtain their vitamin D from foods like cod liver oil and fatty fish rather than from supplements during the winter.

Not exact matches

Two groups of researchers have shown vitamin D3 to be between five44 and ten45 times more effective than vitamin D2 at raising serum levels of calcidiol.

1 On his Vitamin D Council web site, Cannell now recommends blood levels of calcidiol between 50 and 80 ng / mL53 and supplementation of 1,000 IU for every 25 pounds of bodyweight.2 For someone weighing between 150 and 175 pounds, he thus recommends between 6,000 and 7,000 IU per day from all sources.

It's all calcidiol, ready for storage in fat tissue or dispersal to the kidneys for conversion into calcitriol, also known as 1,25 (OH) D. Calcitriol is the active hormonal form whose primary role is to regulate blood calcium levels.

Of those, calcidiol is the form doctors most commonly focus on when measuring vitamin D levels in the blood.