Essentials of Human Nutrition

Comprehensive OER textbook covering all major nutrition topics, from macronutrients and vitamins to body weight, eating disorders, and lifespan nutrition. Written by three registered dietitian nutritionists.

Alice Callahan, Heather Leonard, Med, Tamberly Powell

Extensive open-access textbook from the University of Hawaii covering nutrition fundamentals, the human body, macronutrients, micronutrients, energy balance, and lifespan nutrition across 1,200+ pages.

University of Hawai‘i at Mānoa Food Science and Human Nutrition Program

Open-access textbook covering nutrition basics, healthy diets, digestion, macronutrients, micronutrients, lifespan nutrition, and food politics. Part of the LibreTexts OER platform.

LibreTexts Project

Training module for community health workers covering general nutrition, malnutrition assessment, breastfeeding, vitamin deficiencies, and community-based nutrition programs.

Health Education and Training

Technical module from Action Against Hunger covering nutritional requirements, energy, protein, vitamins, minerals, food composition, ration calculations, and malnutrition assessment.

Action contre la Faim