1 doctor weighed in:

Which brand of d vitamin out there is the best or most reliable?

1 doctor weighed in
Dr. Steven Charlap
Holistic Medicine

In brief: Depends

Look for USP or consumerlabs certification for quality.
Choose d3. However, before supplementing make sure you need it. Ask your doctor to check your blood levels. Don't supplement if you don't need something. Waste of money and may be harmful.

In brief: Depends

Look for USP or consumerlabs certification for quality.
Choose d3. However, before supplementing make sure you need it. Ask your doctor to check your blood levels. Don't supplement if you don't need something. Waste of money and may be harmful.
Dr. Steven Charlap
Dr. Steven Charlap
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