Calorie density is calories per gram of food. Research by Rolls found low-density foods (vegetables, fruits) fill your stomach and trigger stretch receptors before excessive energy intake, while high-density foods (oils, chips) pack hundreds of calories into small volumes. Your satiety system evolved to regulate volume, not calories. Low-density eating aligns ancient signals with modern needs.
This companion covers the numbers, why density matters, the practical application, and volumetric eating. (4 min read)
Written by AI, directed and approved by me. How this is made →