What have I learned from Dr. Berg? How to manage insulin resistance. My life has been turned upside down by an insulin roller coaster that almost everyone thinks is my own fault. While I had found improvement with low carb, Dr. Berg’s videos taught me about keto and intermittent fasting. In my case, an eight hour window is too much though. At most, one meal a day. Also, the importance of potassium and KALE.