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The Science Behind the Supplements

In an ideal world, we’d have perfect diets. In the real world, there is no such thing as a perfect diet. Nutrient shortfalls are a serious part of this reality, but fortunately dietary supplements, in combination with a healthy diet, can be beneficial to achieving optimal nutrition. 

With the majority of Americans taking them, dietary supplements, such as vitamin D, omega-3 fish oil, turmeric and probiotics, are in demand, and consumers may need help optimizing the supplement aisle and identifying the best products to meet their needs. 

The Council for Responsible Nutrition (CRN) has provided the materials below, offering tips, facts and background relevant to dietary supplements to help you better serve your dietary supplement consumer. CRN, founded in 1973 and based in Washington, D.C., is the leading trade association representing the dietary supplement and functional food industry. Learn more about CRN at:

The Dietary Supplement Consumer

The majority of Americans take dietary supplements—76 percent, in fact. Find out what types of dietary supplements they take and for what reasons, where they purchase their supplements, and more!

One Dozen Tips for Consumers

Consumers have a wide variety of choice when it comes to purchasing dietary supplements. To help with their selection, CRN offers these tips.

Americans Do Not Get All the Nutrients They Need from Food

A recent analysis of nutrient intakes of the U.S. population shows that a large percentage of people fall short of the average requirements of many nutrients.

How to Read a Supplement Label

Dietary supplement labels contain valuable information about supplement products. It is important to always read the label and follow the directions. Help consumers understand dietary supplement labels with this guide.

Dietary Supplements: Safe, Regulated, and Beneficial

It’s a fact—dietary supplements are regulated by the Food and Drug Administration (FDA) and the Federal Trade Commission (FTC). Learn about more about the law and why it creates an appropriate framework for regulating dietary supplements.

Food and Dietary Supplements: Regulations Compared

Did you know that food and dietary supplements are both regulated by the FDA? Learn more about their regulations and how they compare.

FDA-Regulated Products: Regulations Compared

Food, dietary supplements, drugs, biologics and medical devices are all regulated by FDA. This chart provides a topline comparison of the regulations for each category.

Supplement OWL ™ (Online Wellness Library) FAQs

The Supplement OWL™is a new online product registry designed to provide a more complete picture of the dietary supplement marketplace. Search, sort, examine and evaluate labels and other product information to make better, informed choices:

Council for Responsible Nutrition Fact Sheet: Who is CRN?

The Council for Responsible Nutrition (CRN) is the leading trade association representing dietary supplement and functional food manufacturers and ingredient suppliers. Find out more about what CRN does and the companies it represents.