- Beta-carotene converts to vitamin A too, so if a beta-carotene supplement is being taken, the vitamin A supplements should decrease.
Also, watch the amount of carrots, beef liver or fish oil you ingest since they contain vitamin A. Too much will raise your amount of the vitamin to above the RDA. - Toxic levels of vitamin A could result from low levels of the vitamin. The symptoms could include dizziness, nausea, headaches, changes in skin or irritability. Long term effects of toxic levels of vitamin A could include loss of hair, liver damage or elevated blood lipid concentrations.
- Pregnant women must be cautious when taking vitamin A. It has been linked to birth defects.
- Vitamin A is stored in the liver and in children could be very toxic.
- A dosage larger than the RDA in adults could lead to a bigger chance of bone fractures as we get older.
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