Fatigue or low energy
Pale skin
Shortness of breath
Dizziness or lightheadedness
Headaches
Cold hands or feet
Weakness
Fast or irregular heartbeat
Brittle nails
Hair loss or thinning hair
Cravings for ice, dirt, or starch
Sore or smooth tongue
Cracks at the corners of the mouth
Trouble concentrating
Restless legs
Frequent infections
Low ferritin on a blood test
Low hemoglobin or hematocrit on a blood test
Low serum iron on a blood test
High total iron-binding capacity on a blood test
Low transferrin saturation on a blood test