Just one sweet potato gives you 400% of the vitamin A you need each day. This helps keep your eyes healthy as well as your immune system, your body's defense against germs. It's also good for your reproductive system and organs like your heart and kidneys. 13 июн. 2021 г.
Why do sweet potatoes have so much vitamin A?
Sweet potatoes are an extremely important source of Vitamin A because they contain high levels of beta-carotene (4, 5). Beta-carotene is transformed into vitamin A in our livers, with every molecule of beta-carotene producing two molecules of Vitamin A (6).
Why is it important to have vitamin A?
Vitamin A (retinol, retinoic acid) is a nutrient important to vision, growth, cell division, reproduction and immunity. Vitamin A also has antioxidant properties.
What type of vitamin A is in sweet potatoes?
Sweet potatoes are an excellent source of beta-carotene. This is a plant pigment that acts as a powerful antioxidant in the body. Beta-carotene is also a provitamin. The body converts it into the active form of vitamin A.
Can you eat too much vitamin A from sweet potatoes?
Sweet potatoes contain beta-carotene, and their excessive consumption can lead to hypervitaminosis A (vitamin A toxicity), in which excess vitamin A accumulates in the liver. Although it is not considered harmful, the color of the skin and nails may turn orange.
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