This article, titled "Editorial: New advances in understanding the regulation of appetite in insects," explores the topic of appetite regulation in insects. The authors discuss how insects maintain energetic and nutritional homeostasis despite their small size and high activity levels. They highlight recent research on topics such as the ability of house crickets to discriminate essential amino acids, the carbohydrate limitation for migratory herbivorous insects, the importance of timing in nutrient regulation, and the role of hemolymph trehalose levels in regulating appetite in forager bees. Overall, the article provides insights into how insects secure optimal nutrition and energy levels in diverse food landscapes. [Extracted from the article]