Bottom Line: Sun Farms Vegetable Soup has not been shown to treat or prevent cancer.
Sun Farms Vegetable Soup contains soybean, shiitake mushroom, mung bean, red date, scallion, garlic, lentil bean, leek, hawthorn fruit, onion, American ginseng, angelica root, licorice, dandelion root, senegal root, ginger, olive, sesame seed, and parsley. Scientists are unsure of exactly how it works because only a few laboratory studies have tested it. In mice taking dried Sun Soup powder, tumor growth was slowed by 53-74% compared to mice not taking the powder. Laboratory tests show that Sun Soup contains inositol hexaphosphate (IP6), a compound that slows that formation and growth of cancer cells in laboratory and animals studies. Sun Soup also contains genistein, daidzein, and coumestrol, which are phytoestrogens (also called isoflavones) found in soybeans. In the laboratory, genistein slows the growth of blood vessels that feed tumors, damages the DNA of cancer cell lines, and, along with daidzein and coumestrol, inhibits the growth of prostate cancer cells. Shiitake mushrooms contain lentinan, which may stimulate the immune system. A study in mice found that shiitake extract and mung bean extract slowed the growth of tumors. However, despite all of these anti-cancer activities in the laboratory setting, it is still not known whether Sun Soup will have an anti-tumor effect in the human body.