While inulin, a type of prebiotic fiber, is well-known for its digestive health benefits, its role in alleviating cold symptoms is not strongly supported by scientific evidence. Inulin primarily aids in promoting the growth of beneficial gut bacteria, which can have an indirect effect on immune function. A healthy gut flora may contribute to an improved immune response; however, it's important to note that inulin is not a cure or treatment for colds.
If you're looking to bolster your immune system during cold and flu season, it's advisable to focus on a well-rounded diet rich in vitamins, particularly Vitamin C and antioxidants, regular exercise, adequate sleep, and proper hydration. Incorporating foods high in inulin, such as chicory root, garlic, onions, and leeks, can certainly be part of a healthy diet, but relying solely on prebiotic fiber like inulin for cold relief may not yield the desired results. Always consult with a healthcare professional for personalized health advice.