How does nutrition influence immune system functionality?.

Nutrition plays a vital role in the effectiveness of the immune system. A balanced diet rich in vitamins, minerals, and antioxidants helps the body fend off pathogens and maintain overall health. Key nutrients include vitamin C, vitamin D, zinc, and probiotics, which contribute to immune response and inflammation regulation. A deficiency in these nutrients can lead to a weakened immune response, increasing susceptibility to infections and diseases.