Overview What is iron-deficiency anemia? Iron-deficiency anemia is a blood disorder that affects your red blood cells. It’s the most common form of anemia. It happens when your body doesn’t have enough iron to make hemoglobin, a substance in your red blood cell that allows them to carry oxygen throughout your body.

Policy Registered dietitian Devon Peart, RD, MHSc, explains what vitamin C really does for your body and why it’s so important to get enough of it. What is vitamin C? Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that plays a critical role in your health.