In the February 2014 Natural Medicine Journal Special Oncology supplement, author Tina Kaczor discusses a study that looked at men with prostate cancer and flaxseed consumption. Within the study, some of the men didn't consume flax seeds. The group who did consume flax seeds (30 g or 1/4 cup per day) though had a significantly lower proliferative index/ki-67 level (which indicates less tumour growth). Previous studies suggest that compounds in flax seeds can increase apoptosis/death of cancer cells and reduce the activity of insulin-like growth receptors which also results in an anti-proliferative effect on cancer cells. Even though the exact mechanism through which flax seed consumption can positively influence prostate cancer isn't clear, this study points to flax seeds being a supportive part of the diet for men dealing with prostate cancer.