Serum Total 25 Oh Vit D Level

The effect of vitamin d supplementation on serum total 25 oh levels and biochemical markers of skeletal muscles in runners pubmed three weeks of vitamin d supplementation had a positive effect on serum 25 oh d levels in endurance trained runners and it caused a marked decrease in post exercise biomarkers levels.

Serum total 25 oh vit d level. Lower than normal 25 oh vitamin d levels can result from a dietary deficiency poor absorption of the vitamin or impaired metabolism of the sterol in the liver. The vitamin d 1 25 dihydroxy level does not have a major change until normal vitamin d levels or 25 oh d drops to levels that are considered a very severe vitamin d deficiency. In the presence of renal disease testing 1 25 dihydroxyvitamin d dhvd levels might be needed to adequately assess vitamin d status. The amount of 25 hydroxyvitamin d in your blood is a good indication of how much vitamin d your body has.

Vitamin d is a generic designation for a group of fat soluble structurally similar sterols which act as hormones. Those who are older or at risk for a. The 25 hydroxy vitamin d test is the best way to monitor vitamin d levels. People aged 1 70 years should aim to get at least 15 mcg or 600 iu of vitamin d per day.

There is consensus that levels below 25nmol l 10ng ml qualify as deficient 1 2 but beyond this there is currently no standard definition of optimal 25 oh d levels. The level of 25 hydroxyvitamin d 25 oh d in the blood is the best indicator of vitamin d status. Vitamin d 25 hydroxy total immunoassay measurement of serum 25 oh vitamin d concentrations provide a good index of circulating vitamin d activity in patients not suffering from renal disease. The majority of healthy adults with vitamin d deficiency serum 25 oh d in the range of 10 to 20 ng ml 25 to 50 nmol l do not require any additional evaluation 10 ng really i would doubt many would be well at that number.

The total 25 hydroxyvitamin d 25 oh vitd level the sum of 25 oh vitamin d2 and 25 oh vitamin d3 is the appropriate indicator of vitamin d body stores. Normal vitamin d levels in the blood are 20 ng ml or above for adults. This test is the preferred initial test for assessing vitamin d status and most accurately reflects the body s vitamin d stores.