Essential for the production of hemoglobin in the body, nutritional iron plays a crucial function in carrying oxygen to the different organs. Iron deficiency can occur for various reasons, such as insufficient nutrition and underlying health problems. It is one of the most prevalent nutritional health disorders globally but often remains undiagnosed due to its subtle and varied symptoms. Therefore, one must know the common signs of iron deficiency for timely diagnosis and treatment. Signs of iron deficiency Feeling unusually tired One of the most common signs of iron deficiency is constant tiredness. This tiredness occurs even without doing any physically strenuous work. Even a slight drop in iron can bring down energy levels, making one feel fatigued. The constant fatigue is due to insufficient oxygen in the blood. The iron supports the production of hemoglobin, a protein that transports oxygen to different organs. Without enough iron, hemoglobin levels go down. So does the level of oxygen, leading to tiredness. The skin may appear unusually pale One of the most noticeable signs of iron deficiency is the skin losing its healthy color. This can be observed by looking at the inside of the eyelids, which may appear paler than usual, taking on a white or yellowish hue.