3 doctors weighed in:
How long does it take your body to absorb b complex vitamins?
3 doctors weighed in

Dr. Randy Baker
Holistic Medicine
2 doctors agree
In brief: Only minutes
In most cases b complex will be absorbed quite quickly.
One way of verifying this is to see how long it takes between taking a potent b complex and how long it takes to see your urine turn dark yellow & smell like vitamins (caused by b1 & b2). For them to appear in your urine they must be absorbed into your bloodstream and then be filtered by your kidneys, but this can happen within an hour.

In brief: Only minutes
In most cases b complex will be absorbed quite quickly.
One way of verifying this is to see how long it takes between taking a potent b complex and how long it takes to see your urine turn dark yellow & smell like vitamins (caused by b1 & b2). For them to appear in your urine they must be absorbed into your bloodstream and then be filtered by your kidneys, but this can happen within an hour.
Dr. Randy Baker
Dr. Randy Baker
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