Protein nutritional support: The prevention and regulation of colorectal cancer and its mechanism research

Colorectal cancer (CRC) is a common malignant tumor of the digestive tract in China; its incidence rates and mortality rates have been on the rise in recent years, ranking third in terms of incidence and second in mortality. Rational dietary intervention plays an important role in human health, and prevention and adjuvant treatment of CRC through dietary supplementation is the most ideal and safest way to treat the disease at present. More importantly, dietary protein is the basis of our diet and the key nutrient to maintain the normal function of the human body. Therefore, this narrative review delivered an overview of the common causes and therapeutic treatments for CRC. It emphasized the importance of dietary interventions, with a particular focus on elucidating the distinct regulatory impacts of plant proteins, animal proteins, and their mixed proteins.