When taken in excess of 3000 mcg/RE, vitamin A can cause birth defects. If you are pregnant, or considering becoming pregnant, do not take vitamin A supplements without consulting your doctor or pharmacist. The recommended daily amount of vitamin A from all sources is 700 mcg/RE for women and 900 mcg/RE for men. Vitamin and mineral supplements should not replace a balanced diet. Talk to a traditional Chinese medicine practitioner/health professional if you are unsure if this medicine is right for you. If symptoms persist, talk to your health professional. This product contains selenium which is toxic in high doses. A daily dose of 150 mcg for adults of selenium from dietary supplements should not be exceeded. For adult use only. Always read the label and follow the directions for use.