About this test

Vitamin A is the vision vitamin — the nutrient your retina uses to convert light into sight, and your immune system and skin use to maintain their barriers. Deficiency in India classically presents as night blindness and dry eyes, and in children it drives infection risk and growth problems.

Vitamin A deficiency is less about starving and more about absorption and diet balance — prolonged very-low-fat diets, gut absorption problems, and certain liver conditions can drain it. This blood test measures retinol, the active circulating form, and is the way to confirm deficiency before supplementation, since vitamin A is one nutrient where excess is genuinely harmful.

The test is a home blood draw; fasting is preferred for consistency. If your doctor suspects deficiency based on night vision problems or a restrictive diet, this report confirms it — and supplementation, when needed, should follow medical advice rather than self-prescription.