Biotin and Blood Tests - BE AWARE
The Biotin molecule binds to a molecule called Streptavidin very effectively. Due to this, you should stop Biotin at least 5 days before your blood test.
BIOTIN AND BLOOD TESTS
The biotin molecule binds to a molecule called streptavidin very effectively. Many blood tests use streptavidin binding assays as part of their testing processes. As such, you should tell your Doctor before doing any blood or urine tests and stop taking biotin at least 5 days before giving blood or urine samples. Here is a list of tests that may be effected and some more interesting information regarding streptavidin binding of biotin.