1. High intake of beta-carotene-rich foods: Consuming large amounts of beta-carotene-rich foods such as carrots, sweet potatoes, spinach, and other brightly colored fruits and vegetables can cause excess dietary beta-carotene.
2. Supplements: Beta-carotene supplements are commonly available and can lead to excess intake of the nutrient if not taken in moderation.
3. Medical conditions: Some medical conditions, such as liver disease, diabetes, or an overactive thyroid, can impact the body's ability to metabolize beta-carotene efficiently, leading to excess levels in the body.
4. Genetic factors: Some individuals may have genetic variations that affect their ability to metabolize and utilize beta-carotene effectively, leading to higher levels in the body.
5. Excessive consumption of fortified foods: Some foods, such as certain breakfast cereals, juices, and dairy products, are fortified with beta-carotene. Consuming these foods in excess can lead to an overabundance of beta-carotene in the diet.
6. Smoking: Research suggests that smokers may have higher levels of beta-carotene in their blood due to increased oxidative stress, which can lead to higher consumption of beta-carotene-rich foods.
What are the causes of excess dietary beta-carotene?
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