For many people, a haemoglobin level of 17.3 g/dL is somewhat higher than usual. This can be caused by dehydration, smoking, living at a high altitude, intense activity, insufficient sleep, or occasionally illnesses that affect the blood, heart, or lungs. If dehydration or smoking is the cause, it may be helpful to drink enough water, abstain from smoking, limit alcohol, and lead a healthy lifestyle. However, you should see a doctor for additional testing to determine the precise cause if the level remains elevated on subsequent testing or if you experience symptoms like headache, dizziness, redness, breathing difficulties, or elevated blood pressure.

For some people, particularly women, a haemoglobin (HB) level of 12 may be typical. However, iron-rich foods including green leafy vegetables, dates, jaggery, beans, nuts, eggs, meat, and spinach can help you feel less exhausted or weak. Eating foods high in vitamin C, such as oranges or lemons, improves the body's absorption of iron. Stay hydrated, get enough sleep, and don't miss meals. After reviewing blood tests, your doctor may also recommend iron supplements if they believe your iron levels are low.