Breads and grains

Find general resources on carbohydrates, proteins, fats and cholesterol, fiber, and water below. Use these links for specifics on a particular type of macronutrient:

USDA Nutrient Lists -Reports by Nutrients

USDA. ARS. Nutrient Data Laboratory.

The Nutrient Data Laboratory has integrated their Nutrient Lists, previously available here as PDF reports, into their online search program. You can select up to three nutrients for your report from a long list of nutrients, including protein, fat, energy (calories) carbohydrate, fiber, sugar, calcium, iron, magnesium, phosphorus, potassium, sodium, zinc, copper, manganese, selenium, vitamin A, vitamin E, vitamin K, vitamin C, thiamin, riboflavin, niacin, pantothenic acid, vitamin B6, vitamin B12, folate, cholesterol, fatty acids, various phytonutrients and antioxidants, and more.

Dietary Reference Intakes: Macronutrients

NAS. IOM. Food and Nutrition Board.

DRI table for carbohydrate, fiber, fat, fatty acids and protein.

Overview of Nutrition: Macronutrients

The Merck Manuals. Online Medical Library.

Your Digestive System and How It Works

DHHS. NIH. National Institute of Diabetes and Digestive and Kidney Diseases.

Also in Spanish.

Factors Affecting the Macronutrient Intake of U.S. Adults

USDA. Economic Research Service.

Study characterizes factors associated with macronutrient excess or inadequacy among US adults (2003).

Nutrient Information

American Society for Nutrition.

Nutrient statements (including macronutrients, vitamins, minerals, and others) prepared by nutrition research experts, based on evaluation of information from peer-reviewed scientific reports.