Iron is an important part of haemoglobin, which carries oxygen around the body, most importantly to the brain. It is also a vital part of myoglobin, a muscle pigment that carries oxygen to the muscle tissue and helps with muscle contraction. Iron also helps metabolise proteins, improves concentration and fatigue.
Try eating more iron rich foods
Here are some ideas:
Red meat, Dark leafy greens, Beans, Lentils, Egg yolk, Artichokes, Chickpeas, Mussels, Oysters, Liver, Nuts, Whole grains, Dark chocolate, Tofu, Seeds, Dried fruit, Broccoli
Note: Get tested before supplementing!