If you are pregnant, or considering becoming pregnant, do not take vitamin A supplements without consulting your doctor or pharmacist. When taken in excess of 3000 micrograms retinol equivalents, vitamin A can cause birth defects. The recommended daily amount of vitamin A from all sources is 700 micrograms retinol equivalents for women and 900 micrograms retinol equivalents for men. Vitamin supplements should not replace a balanced diet. This product contains selenium, which is toxic in high doses. A daily dose of 150 micrograms for adults of selenium from dietary supplements should not be exceeded. Always read the label and follow the directions for use.