Vitamin A is a group of compounds that form a fat soluble vitamin stored mainly in the liver. It helps regulate the immune system as well as contributing to healthy vision, bone growth, reproduction and the functioning of cells within the body.
There are two forms of vitamin A: preformed vitamin A| which is found in food that comes from animals and is absorbed in the form of retinol, and provitamin A carotenoid which comes from fruit and vegetables and is converted into retinol in the body. Retinol is one of the most usable forms of vitamin A. The recommended daily allowance of vitamin A is 800mg or 5000 IU (international units). The upper limit recommended allowance is 2300mg / 20,000 IU.
*Vitamin A amounts measured in International Units (IU), which measure the potency of a substance rather than its weight or mass.
| Food | Serving size | Cals | Amount | GDA (%) |
|---|---|---|---|---|
| Sweet potato | 130g | 149 | 24986 IU | 500 % |
| Carrot | 80g | 18 | 13420 IU | 268 % |
| Mango | 150g | 86 | 657 IU | 13 % |
| Spinach | 90g | 17 | 9432 IU | 188 % |
| Apricot | 40g | 12 | 674 IU | 13 % |
| Cheese | 100g | 410 | 1002 IU | 20 % |
| Chicken Liver | 100g | 169 | 14380 IU | 288 % |
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Dr Ian Campbell
A leading UK weight loss expert & Nutrachecks' medical advisor
Angela Dowden
Nutrition advisor & regular expert press columnist
Vicky Hall
is our consultant nutritionist
Kelly Marshall
Nutrachecks' fitness expert & coach to Olympic athletes