There are many kinds of keto diets, or many version of it. The basic principle is obviously to eat enough fat and to reduce carbs such that you're in ketosis. As you can imagine that can happen in all sorts of ways. You can do an Atkins style diet, which Ken mentioned, and which doesn't distinguish between fats and what is actually healthy and nutritious as a whole. For example, bacon has nitrates and is very poor in the best fatty acids and the relevant ratios; in fact, pork is just not a good meet and chicken is not the best either. I eat them once a month, pork even less often. You can buy supermarket meat that is grain fed and full of antibiotics, or you can just consume lots of seed and veggy oils, none of which is good for you. If you look at the fatty acid makeup of animals that are not fed their correct diets according to evolutionary principles, they don't even compare to animals that are, forget about the other chemicals, contaminants and antibiotics in the feed.

So the reason I say paleo ketogenic is because I use the healthy and natural principles of paleo in the foods that I choose, so the protein, the fats, and so on and so forth. You can eat all the processed food you like and still call it keto, but believe me it will ruin your health in a short amount of time. So I started paleo, then cut out the fruits and high carb veggies and found myself in ketosis. I have various principles, reason why I don't eat this and that, so it is definitely my own diet, formulated over several months, so to speak. As a rule of thumb, if you start with nutrient dense, natural foods on a paleo diet, and then cut out the carbs, you'll have a healthy keto diet.

What's interesting about ketosis is that our bodies are built such that you can slip in and out very easily, with no strain and without even feeling it. When I first showed ketones on my urine test, my GP though it was because I was fasting for the glucose and cholesterol test, but I then explained my diet. So it's that easy and you can slip into ketosis even in a day, if you fast long enough. Everyone is different but I've never heard of it taking more than a few days. We're built such that we can go from one food source, carbs, to the other, fat, and vise versa.

Pinky, that's a classic line. Take what is natural and healthy and turn it into a pharma product so that big pharma can benefit from it. That sounds much more appetizing than coconut oil...

Stillhoping, I understand. I used to be a vegetarian for many years earlier in my life, and it was for ethical reasons. Actually, for a short time, about a year, I even went vegan. As things stand, I hate to say it but I think that the increased amount of grains and general carbs (say from starchy pulses) that I ate then was one thing that led to my gut dysbiosis). Human beings are omnivores, who until very recently didn't consume nearly as much agriculturally produced foods as we now do. Ethically I think all the evidence is on the vegan side, or more so for sure, but health wise I would say the overwhelming evidence is with the paleo and in cases of illness with a paleo keto diet. But I won't lie: I can't justify my diet ethically, not at all, and that troubles me.