Women use vitamin A for heavy menstrual periods, premenstrual syndrome (PMS), vaginal infections, yeast infections, “lumpy breasts” (fibrocystic breast disease), and to prevent breast cancer. Some women with HIV use vitamin A to decrease the risk of transmitting HIV to the baby during pregnancy, childbirth, or breast-feeding.
Natural Health News A derivative of vitamin A, known as retinoic acid, found abundantly in sweet potato and carrots, helps turn pre-cancer cells back to normal healthy breast cells, according to new research.
The research, published in the International Journal of Oncology,could help explain why some clinical studies have been unable to see a benefit of vitamin A on cancer. According to the researchers the vitamin doesnt appear to change the course of full-blown cancer, only pre-cancerous cells, and only works at a very narrow dose.
Because cells undergo many changes before they become fully aggressive and metastatic, the scientists used a model of breast cancer progression composed of four types of cells each one representing a different stage of breast cancer: normal, pre-cancerous, cancerous and a fully aggressive model.
When the researchers exposed the four breast cell types to different concentrations of retinoic acid one of the chemicals that …
Vitamin A is likely safe for most people when taken by mouth in amounts less than 10,000 units per day. Some scientific research suggests that higher doses might increase the risk of osteoporosis and hip fracture, particularly in older people. Adults who eat low-fat dairy products, which are fortified with vitamin A, and a lot of fruits and vegetables usually don’t need vitamin A supplements or multivitamins that contain vitamin A. Long-term use of large amounts of vitamin A might cause serious side effects including fatigue, irritability, mental changes, anorexia, stomach discomfort, nausea, vomiting, mild fever, excessive sweating, and many other side effects. In women who have passed menopause, taking too much vitamin A can increase the risk of osteoporosis and hip fracture.
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