Should you avoid soy after breast cancer? Soy foods. Current research supports including soy foods in the diet of cancer survivors and does not suggest harmful effects, even for those experiencing estrogen-receptor positive breast cancer.
Can soy raise your estrogen levels? According to a handful of studies, soy consumption may have a link to raising serum estrogen in humans (3), and potentially causing thyroid disorders (4). Animal studies have also suggested potential male infertility and breast cancer associated with soy consumption.
Should cancer patients avoid soy? Soy foods are safe for patients with cancer
“Soy is a great alternative to animal protein to include in your daily diet,” she says. “There’s no reason to avoid eating soy.” Soy contains phytoestrogens – the plant form of hormone estrogen.
What are the dangers of soy? The most common side effects of soy are digestive upsets, such as constipation and diarrhea. Soy may alter thyroid function in people who are deficient in iodine. Current evidence indicates that it’s safe for women who have had breast cancer or who are at risk for breast cancer to eat soy foods.