CONCLUSION: "Preliminary data demonstrate that an insulin-inhibiting diet is safe and feasible in selected patients with advanced cancer. The extent of ketosis, but not calorie deficit or weight loss, correlated with stable disease or partial remission."
Nutrition. 2012 Oct;28(10):1028-35. doi: 10.1016/j.nut.2012.05.001. Epub 2012 Jul 26.