I am a 3/4. On keto but afraid of high saturated fats. Have not embraced them so far. Steven Gundry MD, who considers himself a world expert on APOE 4, says no coconut oil and to literally drink liters of EVOO. And NO CHEESE. I am not sure if he is biased, but he does propose a ketogenic diet with many restrictions. Ck him out on youtube. Would love to find more research.