How to read a supplement label

Start with the serving size. It gives the amounts in the panel their meaning.

Read the numbers together

On a U.S. Supplement Facts panel, find the serving size and servings per container. A serving can contain several capsules. Compare the amount of each ingredient per serving, paying attention to its unit. A proprietary blend may list a total without giving every individual amount.

Look beyond the panel

Check other ingredients for capsule materials, flavors and additives. Find the directions, warnings and allergen information on the package. If information is missing or unclear, contact the manufacturer before deciding. FDA guide to supplement labels.