What systems are involved in nutrition?

Nutrition involves several interconnected systems, primarily the digestive system, which breaks down food and absorbs nutrients. The circulatory system then transports these nutrients throughout the body to cells and tissues. Additionally, the endocrine system plays a role in regulating metabolism and appetite by releasing hormones that influence how the body uses nutrients. Lastly, the immune system can be affected by nutrition, as a well-balanced diet supports immune function and overall health.