A ratio of 2.10 - 2.50 is consistent with a mild niacin deficiency.
A ratio of less than 2.10 is consistent with a marked niacin deficiency."
No vitamin B3 (niacin) containing supplements for 24 hours prior to testing.
Sample must reach Biolab within 24 hours of collection. Last appointment 12:45pm Fridays, to reach lab no later than 1pm.
rep-niacin.pdf (Click to Download)
Green top (Heparin ); Sample must reach the Laboratory within 24hrs (no later than 1pm Fridays).
Postal Samples Acceptable:
For further details please contact the laboratory at: firstname.lastname@example.org