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home:tests:25d [03.23.2016] – [Units of measurement] sallieqhome:tests:25d [03.22.2017] – [Healthy people who do not supplement have naturally low levels of 25-D] sallieq
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 On the Marshall Protocol study site, 25-D levels are typically discussed using ng/ml units rather than pmol/L. The ratio between the two units is: 1 ng/ml = 2.5 nmol/L. To convert nmol/L into ng/ml, multiply by 0.40, as you see in this example: On the Marshall Protocol study site, 25-D levels are typically discussed using ng/ml units rather than pmol/L. The ratio between the two units is: 1 ng/ml = 2.5 nmol/L. To convert nmol/L into ng/ml, multiply by 0.40, as you see in this example:
  
-  60 nmol/L * 0.40 = 25 ng/mL+  60 nmol/L * 0.40 = 24 ng/mL
  
 This is also done automatically with the [[home:tests:vitdinterpretation|vitamin D metabolite calculator]]. This is also done automatically with the [[home:tests:vitdinterpretation|vitamin D metabolite calculator]].
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 Observational studies show that populations which avoid vitamin D consumption have naturally low levels of 25-D and remain healthy with such levels.  Observational studies show that populations which avoid vitamin D consumption have naturally low levels of 25-D and remain healthy with such levels. 
-  * A study which tested the level of 25-D in 90 “healthy, ambulatory Chilean women” showed that 27% of the premenopausal and 60% of the postmenopausal women had 25-D levels under 20 ng/ml.(({{pubmed>long:17290161}}))      + 
-  * A study on healthy Bangladeshi women found that approximately 80% of the women had a level of 25-D under 16 ng/ml.(({{pubmed>long:16500882}}))  +  * A study which tested the level of 25-D in 90 “healthy, ambulatory Chilean women” showed that 27% of the premenopausal and 60% of the postmenopausal women had 25-D levels under 20 ng/ml. (({{pubmed>long:17290161}}))      
-  * In a 1992 study, healthy full-term infants from China had serum concentrations of 25-D ranging from an average of 5 ng/ml to 14 ng/ml.(({{pubmed>long:1578308}}))+  * A study on healthy Bangladeshi women found that approximately 80% of the women had a level of 25-D under 16 ng/ml. (({{pubmed>long:16500882}}))  
 +  * In a 1992 study, healthy full-term infants from China had serum concentrations of 25-D ranging from an average of 5 ng/ml to 14 ng/ml.  (({{pubmed>long:1578308}}))
 ==== Patients with chronic diseases naturally downregulate levels of 25-D ==== ==== Patients with chronic diseases naturally downregulate levels of 25-D ====
  
home/tests/25d.txt · Last modified: 09.14.2022 by 127.0.0.1
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