How do I check for duplicated vitamins across supplements?

List your supplements and compare matching ingredients per recommended daily serving. Products called “multivitamins” and “minerals” can overlap.

Do not add percentages from different labels without checking units and serving sizes. Look for vitamins and minerals in sports drinks and other blends too.

Discuss combinations with a doctor or pharmacist when ingredients overlap. Different product names do not establish a need to take them together.