Neil Barnard, who wrote the book Your Body in Balance, explained to The Beet in an exclusive interview that eating too much dairy can cause all sorts of health problems such as hormonal cancers like breast and prostate cancers, as well as mood disorders, fertility issues, and more. A Cheese-Free Diet is Healthier and May Help Prevent Diseasesĭr. Eating a plant-based diet can reduce inflammation as well as lower your risk of diseases including heart disease, diabetes, certain cancers, and boost your immune system thanks to plant-based foods naturally rich in vitamins, minerals, and fiber.