The bitter melon, which is often consumed by the Chinese, not only has the effect of lowering blood sugar and blood fat, but also has recently been shown to have an anti-breast cancer effect. The most prestigious international oncology journal Cancer Research published a paper by researchers from Saint Louis University on March 1, 2010. The researchers used a juicer to extract bitter melon juice from fresh Chinese bitter melon, and then centrifuged the juice to obtain the upper layer of bitter melon extract. The bitter melon extract was then added to a human breast cancer cell line at different concentrations and cultured. 48 hours later the breast cancer cells were observed for death. It was found that the breast cancer cells did not die in the culture dish without the addition of bitter melon extract; while the mortality rate of breast cancer cells increased with the addition of bitter melon extract, and over 90% of the breast cancer cells died when 5% concentration of bitter melon extract was added. However, for non-breast cancer cells, such as breast duct epithelial cell lines, the addition of bitter melon extract did not cause cell death. Further experiments demonstrated that bitter melon extract caused the death of breast cancer cells by inducing apoptosis (apoptosis as a form of cell death). The current conclusion that bitter melon has an anti-breast cancer effect though is from in vitro experiments and needs to be further proven in animal experiments. However, it certainly gives us useful inspiration to use a proper diet to fight breast cancer.