How to Read a Supplement Facts Label

Supplement Facts is the name given to the nutrition information panel of a dietary supplement product. 

Serving Size is the manufacturer’s suggested serving expressed in the appropriate unit (tablet, capsule, softgel, packet, teaspoonful, etc.)

Servings Per Container tells the net content of the dietary supplement.

Amount Per Serving heads the listing of dietary ingredients in the supplement and the quantity 
of each.

Percent Daily Value (DV) tells what percentage of the recommended daily intake for each nutrient is contained in each serving. The DVs are for adults and children ages 4 and up, unless otherwise indicated. 

All dietary ingredients contained in the supplement are identified by their common or usual name. A dietary ingredient can be a vitamin, mineral, botanical, amino acid, or other dietary substance, as well as a concentrate, metabolite, constituent, extract, or combination of any of 
the above. 

The amount of dietary ingredient in each serving is declared in 
metric units. Milligram (mg) and microgram (mcg) are common units. 

A symbol, such as an asterisk, placed under the % Daily Value heading indicates that the Daily Value has not been established for that dietary ingredient.  

A footnote contains explanations for symbols, such as the asterisk, placed under the % Daily Value heading. Explanations may include “Daily Value not established.” 

The list of all ingredients in the supplement, including any ingredient that is the source of a dietary ingredient, in decreasing order by weight.  Source ingredients may be listed in parentheses next to the dietary ingredient name, in which case they do not need to be relisted in the “ingredients statement.”