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MedlinePlus is a service of the National Library of Medicine (NLM), the world's largest medical library, which is part of the National Institutes of Health (NIH). It was built as an online health information resource for patients and their families and friends.

MedlinePlus presents high-quality, easy to understand, relevant health and wellness information that is trusted.

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MedlinePlus at a Glance

  • Offers information on health topics, human genetics, medical tests, medications, dietary supplements, and healthy recipes.
  • Sourced from more than 1,600 selected organizations.
  • Provides 40,000 links to authoritative health information in English and 18,000 links to information in Spanish.
  • In 2018, 277 million users viewed MedlinePlus more than 700 million times.

Food Labeling

All packaged foods and beverages in the U.S. have food labels. These "Nutrition Facts" labels can help you make smarter food choices and eat a healthy diet.

Before you read the food label, you should know a few things:

  • Serving size is based on how much people usually eat and drink at one time
  • Number of servings tells you how many servings are in the container. Some labels will give you information about calories and nutrients for both the whole package and each serving size. But many labels just tell you that information for each serving size. You need to think about the serving size when you decide how much to eat or drink. For example, if a bottle of juice has two servings and you drink the whole bottle, then you are getting twice the amount of sugar that is listed on the label.
  • Percent daily value (%DV) is a number that helps you understand how much of a nutrient is in one serving. Experts recommend that you get certain amount of different nutrients daily. %DV tells you what percentage of the daily recommendation you get from one serving of a food. With this, you can figure out if a food is high or low in a nutrient: 5% or less is low, 20% or more is high.

The information on a food label can help you see how a certain food or drink fits into your overall diet. The label lists, per serving,:

  • The number of calories
  • Fats, including total fat, saturated fat, and trans fat
  • Cholesterol
  • Sodium
  • Carbohydrates, including fiber, total sugar, and added sugar
  • Protein
  • Vitamins and Minerals

Food and Drug Administration