Reference publication · Founded 2025
An open reference for nutrition, metabolic, and food-science terminology.
Nutrition Reference is an editorially-independent glossary of nutrition science terminology — macronutrient biochemistry, micronutrient bioavailability, metabolic physiology, and the concepts behind modern dietary assessment. Each entry is peer-reviewed against primary sources.
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- Doubly Labelled Water The reference method for measuring total energy expenditure in free-living humans, using the differential elimination of two stable isotopes…
- Weighed Food Record A prospective dietary assessment method in which every item consumed is weighed and recorded at the time of eating, used as the per-meal ref…
- 24-Hour Dietary Recall A retrospective interview method in which a trained interviewer elicits everything consumed in the previous twenty-four hours, using a struc…
- Food Frequency Questionnaire A retrospective instrument that asks how often each of a fixed list of foods was consumed over months or a year, designed to rank individual…
- Amino Acids The organic building blocks that assemble into proteins and serve as precursors to neurotransmitters, hormones, and metabolic intermediates.
- Essential Amino Acids The nine amino acids the adult human body cannot synthesize de novo in adequate quantity and must obtain from dietary protein.