Crunching a raw carrot is pleasant, but nutritionally it is a loss. Absorption of beta-carotene from raw carrot runs around 3–5%, and rises several-fold when the carrot is cooked and eaten with fat.
Beta-carotene converts to vitamin A only as the body needs it. Unlike animal-source vitamin A, there is virtually no risk of toxic excess.
Key benefits
A safe supply of vitamin A
One medium carrot exceeds an adult's daily vitamin A requirement. Vitamin A is needed for vision in dim light, corneal maintenance, mucosal barriers and immune cell function.
It matters for the eye surface and night vision
"Carrots are good for your eyes" is overstated but not baseless. Vitamin A deficiency directly causes night blindness and corneal damage, and where deficiency is common, carrots are a genuine remedy.
Fibre moderates blood sugar and appetite
2.8 g per 100 g, including the soluble fibre pectin, which slows sugar absorption and feeds beneficial bacteria in the colon.
Carotenoids lower oxidative stress
Beyond beta-carotene there is alpha-carotene and lutein. Observational studies link higher carotenoid intake with lower risk of several chronic conditions.
How to eat it well
- Cook them and add fat. Steamed or sautéed with olive oil, absorption is several times that of raw.
- Cook whole, then cut to reduce loss of water-soluble nutrients.
- Scrape the skin rather than peeling deeply. Nutrients concentrate just beneath it.
- Even raw preparations like grated salads benefit from an oil dressing.
- Juicing removes most of the fibre. Eating them whole is better.
What to watch out for
- Eating several a day for a long time can turn palms and soles yellow — carotenemia. It is harmless and fades when intake drops.
- Smokers should avoid beta-carotene supplements; high-dose trials found increased lung cancer risk. This does not apply to carrots as food.
- With birch pollen allergy, raw carrot can trigger oral allergy syndrome. Cooking usually solves it.
- As juice, the sugars can raise blood glucose quickly.
Nutrition
Approximate values per 100 g edible portion.
- Calories
- 41 kcal
- Carbohydrates
- 9.6 g
- Fiber
- 2.8 g
- Sugars
- 4.7 g
- Protein
- 0.9 g
- Beta-carotene
- 8,285 µg
- Potassium
- 320 mg
- Vitamin K
- 13 µg
Key nutrients
- Beta-carotene
- Vitamin A
- Fiber
- Potassium
- Vitamin K