Our bodies rely on a regular supply of iron to maintain healthy functioning. Iron is used to make haemoglobin in red blood cells, which transport oxygen around the body, from the lungs to the tissues, supporting heart health and respiratory and immune functions. Iron is also used as a component of myoglobin, which helps our muscles to receive, store, and transport oxygen. Additionally, iron forms part of some essential enzymes, as well as being involved in DNA synthesis. Insufficient iron in your diet can lead to anaemia, and resulting symptoms that include fatigue and headaches. So, if you’re following a plant-based diet, it’s important to be aware of the best vegan iron sources available.