Hello ginette55. I know little about the keto diet but you're spot on about sugar. According to dr robert lustig excess sugar of any kind is the culprit behind all chronic metabolic diseases like hypertension, type 2 diabetes, dementia as well as cancers. He says the liver can't handle the typical sugar laden diet of Americans and stores it as liver fat. This fat is the driver of the disease process and leads to premature aging and problems that go with it. It's also as addictive as alcohol and elicit drugs according to his findings. This has been a revelation to me and my wife who was recently diagnosed with multiple myeloma. She has a fatty liver as well as type 2 diabetes and hypertension. Unfortunately she has been eating a diet full of lots of sugary highly processed products for years. There are many interviews on NPR, etc. that detail Dr Lustigs findings. We are actively changing our diet and removing all sugars from it. Even honey. Thanks for the opportunity to share this info.