Vitamin A toxicity is likely to occur from:

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Vitamin A toxicity is most likely to occur from consuming large amounts of fortified foods or vitamin A supplements, as these sources provide high doses of the nutrient that can exceed the body's needs and lead to toxicity. Consuming too many dark green and deep orange vegetables, such as spinach and carrots, is unlikely to cause toxicity as these foods contain beta-carotene, which the body converts to vitamin A only as needed. Overconsumption of whole grains or drinking too much orange juice does not pose a risk of vitamin A toxicity. Consuming large amounts of fortified foods or vitamin A supplements can lead to vitamin A toxicity as excess vitamin A is stored in the body and can cause adverse effects. Consuming too many dark green and deep orange vegetables or drinking too much orange juice is unlikely to lead to vitamin A toxicity as the body can regulate the absorption of beta-carotene (a precursor to vitamin A) from these sources. Overconsumption of whole grains does not contribute to vitamin A toxicity.

Vitamin a Toxicity Is Likely to Occur From