The larger role of micronutrients

You may need more of them in your daily diet than you think.

Published: July, 2019

The saying goes that good things come in small packages, and that is especially true when it comes to nutrition.

There are two major classes of nutrients in food: macronutrients and micronutrients. Macro means big, and macronutrients take their name from the fact they make up the bulk of the nutrition in the food: carbohydrates, protein, and fat. These nutrients supply your calories and serve as the building blocks for muscles and tissues. Most people get plenty — and sometimes too many — from a regular diet.

To continue reading this article, you must log in.
  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »