That’s why the Bulletproof Diet uses cyclical nutritional ketosis, and why on days when I eat carbohydrates, I always have Brain Octane Oil so my cells have a steady supply of ketones. This builds metabolic flexibility: you can eat fat and carbs and your body will use them both, which is the goal. You want to be resilient and full of energy no matter what, and that means you want cells strong enough to burn whatever you give them.
If you have health reasons that make you want to try it and eating bacon, eggs and steak salads every day sounds amazing, maybe you could swing it. If nothing makes you happier than a fresh piece of sourdough, or if beans are one of the protein sources you rely on, there’s no point in trying a diet that’s not going to work. (And, by the way, sourdough toast with mashed avocado for breakfast and black bean soup for lunch are really delicious and healthy.)
This article is a perfect example of the misinformation regarding diabetes and insulin resistance. The authors stance against the ketogenic diet is a simple, “its just too hard, I cant live without fruit.” She projects her lack of willpower to her audience. Ketogenic diets are a great way to reduce insulin levels and get to the root of the problem.
At the conclusion of the intervention, both groups had improved in all metrics but “these changes were more significant in subjects who were on the LCKD as compared with those on the LCD.” . As a result, the researchers supported the study outlined above and concluded that their “…study shows the beneficial effects of a ketogenic diet over the conventional LCD in obese diabetic subjects.” 
I am confused by this statement, as there are many wonderful “white” substitutions that taste great, and don’t make me feel like i am missing out. One of the things I thought I was just going to die if I couldn’t ever have it again, was waffles with peanut butter & maple syrup. Guess what….there is a sub for that! I am T2D, and my doctor, who specializes in diabetes, told me to stop eating sugar, carbs and she said that in a perfect world, I would stop eating fruit, as it contains sugar. That’s when I found Keto, on my own. I’ve been on it for a little over a month or so, and have lost 12lbs, but more importantly, BS levels that were averaging in the 200’s are now lower than the 90’s, consistently… The highest number I’ve tested was 97, after I ate dinner & had a satisfying bowl of Keto ice cream. I’ve been diagnosed Diabetic for approx 4yrs, but am certain I was diabetic for probably 3 yrs prior to that. I’m not over weight, and did not have the hope of “losing weight and getting off meds”. This has been my answer, and I truly think that if we did live in a perfect world, more things like this would be taught to those of us who need better choices than medications. There are so many other things in the world that are suppressed due to greed of Big Pharma & Government. Let’s start helping our fellow man be healthy & heal….
A small, randomized crossover study published in the Journal of Diabetes Sciences and Technology found that after three months, people who followed a modified, low-carb paleo diet saw greater reductions in their A1C, their triglycerides, their diastolic blood pressure, and their weight than those who followed a traditional diabetes diet. (The approach also increased their levels of LDL, or "good” cholesterol.) The diabetes diet in the study involved consuming no more than 6 g of salt per day, reducing saturated fat and total fat intake, and upping intake of veggies, fiber, whole grains, fruits, and veggies. Compared with the diabetes diet, the paleo diet involved eating less dairy, beans, potatoes, and cereals, and more veggies, fruit, meat, and eggs.
Mastering Diabetes: Studies conducted in tens of thousands of people over 5+ years indicate that low-carbohydrate diets increase your risk for cardiovascular disease, hemorrhagic stroke, hypertension, atherosclerosis, diabetes mortality, obesity, cancer, and all-cause mortality (premature death). No matter how you slice it, low-carbohydrate diets trick patients and doctors into believing that ketosis is an excellent long-term dietary strategy, when in reality the consequences can be disastrous.
Over 8–10 mmol/l: It’s normally impossible to get to this level just by eating a keto diet. It means that something is wrong. The most common cause by far is type 1 diabetes, with severe lack of insulin. Symptoms include feeling very sick with nausea, vomiting, abdominal pain and confusion. The possible end result, ketoacidosis, may be fatal and requires immediate medical care. Learn more