" such as car accidents, had so-called “occult” (or hidden) breast cancers growing inside them.3 Sometimes there’s nothing you can do to prevent the initiation stage of cancer, when that first normal breast cell mutates into a cancerous one. Some breast cancers may even start in the womb and be related to your mother’s diet.4 For this reason, we all need to choose a diet and lifestyle that not only prevents the initiation stage of cancer but also hampers the promotion stage, during which the cancer grows to a size large enough to pose a threat. "

― Michael Greger , How Not to Die: Discover the Foods Scientifically Proven to Prevent and Reverse Disease