Cancer Prevention

Guavas effects primarily on prostate cancer, breast cancer, and oral cancers. Guava leaf oil is extremely successful as an antiproliferative substance, and has actually been shown to be more effective than some leading modern medicines in reducing cancerous growth. Guavas are also rich in lycopene, a powerful antioxidant that has been shown to be wildly successful in reducing prostate cancer risk. That same antioxidant has also shown to inhibit the growth of breast cancer cells, although further human trials need to be done.