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No - False
Food sources don't pose Vitamin A toxicity issues. While too much vitamin A from supplements can be dangerous, beta-carotene (the natural form found in foods) doesn't pose such a risk. Additionally, the relative amount of Vitamin A found in foods as compared to a concentrated vitamin tablet is much, much less.
Vitamin A is fat soluble. This means that excess is stored in the body for longer periods of time. This also means that there is a greater risk of toxicity when eaten in large amounts.
African American
Vitamin A supplements should not be taken in conjunction with any retinoid medications, including isotretinoin (Accutane), a drug used to treat acne. There is a higher risk of toxicity.
yes.
Vitamins A and D
Elsa Nielsen has written: 'Toxicological risk assessment of chemicals' -- subject(s): Environmental Exposure, Environmental risk assessment, Hazardous substances, Health risk assessment, Methods, Prevention & control, Risk assessment, Standards, Toxicity, Toxicity testing, Toxicology
You run the risk of liver failure and toxicity
Rodney E Willard has written: 'Assessment of cadmium exposure and toxicity risk in an American vegetarian population' -- subject(s): Vegetarians, Toxicology, Cadmium
Vitamin A lowers the risk of nightblindness, decrease in vision, chronic malabsorption of lipids, and impaired bile production and release.
vitamin B12