Aside from vitamin C supplements—such as Daily-C—the best barley grass from Santé is also high in nutrients that can boost immunity. With a strong defense against pathogens, you can prevent infections that can affect your quality of life. You may not know it, but your body may be showing weak immune system signs that are alerting you to take action to improve your eating, sleeping, physical activity, and stress management. To give you an idea, keep on reading!