13 Subtle Signs of Iron Deficiency You Might Be Ignoring
7. Brittle Nails

Brittle or spoon-shaped nails, a condition known as koilonychia, can be a physical manifestation of iron deficiency. Healthy nails are strong and resilient, but when your body lacks iron, they can become weak and prone to breaking or splitting. In some cases, the nails may even develop a concave shape. This symptom is often accompanied by other signs of iron deficiency, making it an important clue in identifying the condition. If you notice changes in your nails' texture or shape, it might be worth evaluating your iron intake and consulting with a healthcare provider.
8. Swollen Tongue and Mouth Sores

An often overlooked symptom of low iron levels is the swelling of the tongue, known as glossitis, and the development of mouth sores. Iron plays a significant role in maintaining the health of your mucous membranes, and a deficiency can lead to inflammation and discomfort in the mouth. The tongue may appear swollen, smooth, or unusually pale, and you might experience pain or difficulty swallowing. Mouth sores can also develop, causing further discomfort. If you're experiencing these symptoms, it could be a sign that your body is not getting enough iron, and it's important to address this with a healthcare professional.