I try to avoid things where studies have shown an association with breast cancer (because it makes sense that if it can cause it, it can't be healthy). So alcohol is out (some tasty NAs out there). I minimize meat and eggs because it's the animal that is fed hormones & antibiotics. No processed foods and try to minimize sweets or use lower glycemic index sweeteners when sweetening is needed. No artificial sweeteners. Lots of fresh fruits and vegetables. I've found ways to eat quinoa to improve flavor. I use Irish grass fed whey since it has no additives and when fat is extracted, estrogen goes with it.