The book opens by describing how I was told by my diabetic doctor that there were early signs of retinopathy forming in my eyes. This diagnosis could ultimately lead to me losing my eyesight. I was therefore compelled to look at ways in which I could improve my health beyond my doctor’s standard advice. Through doing my own research, I found that there were huge benefits to be gained by following a low-carb diet, and that it could even prevent type 2 diabetes. I adopted this diet myself, and document my experiences and overall results in the decade that followed.