Dr Kristi Funk has designed a 14-component food system building upon Dr Greger's Daily Dozen. See Dr Funk's Favorite 14 — Eat To Beat Breast Cancer Today (PDF) in which soy is a food group by itself! Why? Because soy foods are special when it comes to cancer. They are known to protect us against breast cancer and prostate cancer. See Dr Greger's videos on the subject: Breast Cancer & Soy, and Prostate Cancer & Soy.