By Raquel Fantas Breast development begins at puberty and is regulated by the balance of specific hormones. Medical research has shown that the development of breast tissue depends on the delicate balance of progesterone, estrogen, prostaglandins, prolactin and other compounds. An imbalance of these hormones can result in poor breast development or even atrophy (decrease in size). What are Phytoestrogens ? Phytoestrogens are a group of substances found in plants that have moderate estrogenic properties. The phytoestrogens compete for the same receptor cells as true estrogen. Phytoestrogens,...