Inadequate chewing of food impairs digestion and nutrient absorption
Evidence indicates that inadequate chewing and poor masticatory performance disrupt the initial breakdown of food and can compromise nutritional status and digestion.
The retrieved literature consistently supports the premise that mastication is critical for proper food processing, and that impaired chewing (due to tooth loss or reduced oral function) correlates with malnutrition, malabsorption, and altered digestive kinetics, particularly in vulnerable populations.
Lettieri M, Rosa A, Spataro F, Capria G, Barnaba P, Gargari M, Martelli M. Chewing Matters: Masticatory Function, Oral Microbiota, and Gut Health in the Nutritional Management of Aging.. 2025. https://doi.org/10.3390/nu17152507
Reviews how impaired masticatory function in aging populations leads to malnutrition and gastrointestinal challenges.
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Wang X, Chen H, Xu Y, Xu Q, Cui H, Liu F. The collapse of the food matrix: how ultra-processed foods impact satiety and metabolism by altering physical structure beyond nutrient composition.. 2026. https://doi.org/10.3389/fnut.2026.1737280
Notes that reduced chewing requirements weaken oral processing and early satiety signals, impacting downstream metabolic and digestive health.
Prasad D A, Prasad D K, Alva H, Shetty A, Chougule KA, Yaacob H, Shenoy R. Effect of Oral and Prosthodontic Rehabilitation on Nutrition and General Health Outcomes in Edentulous Elderly Populations: A Systematic Review.. 2026. https://doi.org/10.1155/ijod/5786191
Demonstrates that prosthodontic rehabilitation improves chewing function and yields consistent benefits for nutritional outcomes in older adults.
Eugenio Mocchegiani, Javier Romeo, Marco Malavolta, Laura Costarelli, Robertina Giacconi, Ligia-Esperanza Diaz, Ascension Marcos. Zinc: dietary intake and impact of supplementation on immune function in elderly.. 2013. https://doi.org/10.1007/s11357-011-9377-3
Identifies inadequate mastication as a contributing factor to nutritional issues and malabsorption in the elderly.
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