Vitamin C Test

This test measures the level of vitamin C (ascorbic acid) in the blood. Vitamin C is essential for tissue repair and collagen production, which support the health of your skin, bones, blood vessels, teeth, and gums, and aids in wound healing. It also helps the body absorb iron to support red blood cell formation.

Your body can’t make or store large amounts of vitamin C, so it must be consumed regularly through food or supplements. Low vitamin C levels are most often caused by diets lacking fruits and vegetables but may also result from increased demand (such as during pregnancy, breastfeeding, or hyperthyroidism) or reduced absorption. Good dietary sources of vitamin C include strawberries, tomatoes, citrus fruits, broccoli, sweet peppers, and potatoes.

Consuming proper amounts of vitamin C has been linked to lowering the risk of certain conditions, like age-related macular degeneration. Measuring your vitamin C level can help you and your healthcare provider determine whether changes to your diet or supplements may be beneficial.

No doctor’s visit needed.

This test measures the level of vitamin C (ascorbic acid) in your blood. Vitamin C is a water-soluble nutrient that supports collagen production, tissue repair, and the formation of blood vessels, cartilage, muscle, and bone. It also helps the body absorb iron to support red blood cell formation and acts as an antioxidant to protect cells from damage.



Because the body cannot produce or store large amounts of vitamin C, it must be obtained regularly through diet or supplements. Low vitamin C levels may be associated with conditions such as scurvy and anemia.

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