The maximum daily dose relates to only pre-formed vitamin A. Pre-formed vitamin A is possibly unsafe when taken in doses greater than 10,000 units (3,000 mcg) daily. Higher doses might increase the risk of side effects. Long-term use of large amounts might cause serious side effects including mental changes.
What happens if you take vitamin A everyday?
Multivitamins that offer large amounts of fat-soluble vitamins can be harmful, as excess levels of these vitamins can build up in the body. For instance, excess intakes of vitamin A may cause headaches, liver damage, weaker bones, and birth defects ( 11 ).
Can I take vitamin A regularly?
Taking Too Much Vitamin A Can Be Risky Vitamin A is a fat-soluble vitamin, which is stored in your body. This means that excess consumption can lead to toxic levels. Hypervitaminosis A is caused by consuming too much preformed vitamin A through your diet or supplements containing the vitamin.
Should vitamin A be taken daily?
RDA: The Recommended Dietary Allowance for adults 19 years and older is 900 mcg RAE for men (equivalent to 3,000 IU) and 700 mcg RAE for women (equivalent to 2,333 IU). UL: The Tolerable Upper Intake Level is the maximum daily intake unlikely to cause harmful effects on health.
Is too much vitamin A BAD FOR YOU?
Can vitamin A be harmful? Yes, high intakes of some forms of vitamin A can be harmful. Getting too much preformed vitamin A (usually from supplements or certain medicines) can cause severe headache, blurred vision, nausea, dizziness, muscle aches, and problems with coordination.
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