The neolithic era was when humans began consuming vegetation. This was the very beginning of the process that led to todays obesity and diabetes epidemic.
An all-meat diet does NOT induce long-term ketosis. For the first few weeks you will have excess ketones in your urine. This is because your body is in conversion mode. Your body is so used to burning sugar for fuel, it will struggle for a while to find its new fuel source, fat. After a few weeks your body will adjust to this new way of life and begin burning the ketones for fuel, so you will come out of ketosis. This is a normal and healthy condition.
You will feel horrible at first, because of this switch over process. But once you're switched over, if you're diligent, you will feel like a brand new person with the metabolism and energy of a 10 year old.
People will try to tell you that your body needs carbohydrates because your brain can only run on glucose. Certain parts of your brain can only run on glucose, true. However, what they fail to mention is that your body can convert both fat and protein into glucose through gluconeogenesis. As long as you are consuming enough calories, protein and fat you won't lose muscle mass, and your brain will function perfectly.
That's another thing they'll try to stuff down your throat. They will tell you that protein catabolism speeds up on this diet. What they also fail to mention is that at the same time, protein synthesis ALSO speeds up. My belief is that the breaking down of protein is due to the de-junking of cells, something I read from a doctor a while back. The extra protein synthesis is due to the higher amount of protein in the diet (which is NOT dangerous by the way) and 1. the higher overall adrenaline amount (not adrenaline/cortisol flashes, this is totally different) and 2. the much higher human growth hormone in the blood. Yes, if you want a natural way to seriously boost HGH, an all meat, high fat diet is the way to do it.
High protein diets are not dangerous, and never have caused kidney or liver disease. The only time high protein diets are bad for your kidneys is if they are in conjunction with a high carbohydrate diet, through a process called glycation. The glycated proteins, because of the huge amount of insulin and glucose, are what damage your kidneys. This is the connection between diabetes and kidney disease.
I read of someone who has eaten nothing but unprocessed fatty meat for 47 years, and is still going. He's built great muscle, started building the muscles at FIFTY FIVE, and people tell him all the time he looks like he's in his 30's when he is in his 60's.
I believe we have all been lied to. I've never been a conspiracy theorist. However, after following the low-fat mantra twice in my life and watching my body basically implode on itself both times, I have experienced this lie first hand.
The very thing the diabetes association and heart association are telling you to eat to cure what ails you, is the very thing that will kill you if you follow it.
They are wrong. DEAD wrong. Anyone who tells you that zero carb or low-carb is dangerous, is seriously misinformed. How did the inuits or our paleo ancestors survive for all those millions of years on exclusively meat if it's "so dangerous" for you?