Silent Signs of a Vitamin C Deficiency You’re Probably Ignoring

Vitamin C helps stimulate the production of white blood cells that attack bacteria and viruses as part of your immune response. As an antioxidant, vitamin C also helps protect the health of immune cells so that they can work efficiently to prevent infections. Frequent wound infections or suffering from common infections like the flu, UTIs, or strep throat is an indication of a weakened immune system. You can boost your immunity by getting enough vitamin C. But be careful—this is why some vitamins could make you feel worse.