Check your iron levels for signs of iron deficiency or overload with our easy at-home test. If you experience fatigue, heavy periods, or low energy, this test helps identify whether you could benefit from optimising your iron levels to feel your best. Iron is an essential mineral that’s needed to make haemoglobin, a protein found in red blood cells that helps transport oxygen around your body. It also plays an important role in supporting your immune system, maintaining energy levels, and regulating body temperature. When your iron level is low, you can feel tired and be more susceptible to illnesses and infections. And a severe lack of iron could lead to iron deficiency anaemia, which causes fatigue, shortness of breath, and heart palpitations.