Wait, I did forget something: Avoid
fat trans trans fats like the plague.
That's my biggest issue with hardcore keto diets. If a diet tells me to avoid certain veggies and fruits, I get suspicious. Because there is absolutely no need to. You need to eat fruits, you need to eat veggies. As much and many kinds of them as possible.
It's about the insulin response. Too high of an insulin response will kick you out of ketosis. You don't
need to eat fruit. Fruit is generally far too high in one of the worst kinds of sugar*. But you definitely need to eat copious amounts of vegetables and salad.
* Fructose can only be processed through the liver. In high amounts, the liver can struggle to cope and begin storing it as fat on itself.
It is all true that carbohydrates are not needed for muscle building, but posting videos with bodybuilders who clearly use steroids is a bit...questionable. Thomas DeLauer has been doing high cycles for years and it doesn't help Dr. Berg's credibility and seriousness when he involves such people.
Otherwise, there are several studies and millions of real world examples that ketosis does not improve endurance, but generally decreases it. If this were not the case, most professional athletes would by the way have long since started to eat only ketogenic food. However, almost no one actually does this (unless they take steroids).
The fact that some people feel very good when they are on a ketogenic diet has to do with the fact that a) the calorie limit is either very low or non-existent, b) the body has switched to ketosis or they eat far too much carbohydrates and, most importantly, c) they finally stopped eating so much shit. So imagine somebody who is not doing keto and not eating shit at the same time. That's the way to peak performance.
Bodybuilding isn't an area of interest, so I wouldn't know if the guy's on steroids. I wasn't implying keto would get those kinds of results, I was only interested in the data.
I'm aware there are many studies against low-carb and ketogenic diets. They tend to be carefully constructed or naive versions that shouldn't strictly be considered as either. For example, considering a daily carbohydrate limit of 100g as 'low', or including poor ingredients choices like rapeseed oil and maltodextrin. They're often short-term studies when the full benefits of keto-adaptation can be delayed potentially four weeks or never come due to the poor ingredients used.
I'd argue people tend to feel good on ketogenic diets because they aim to correct health and maintain a feeling of wellness. Particularly in swapping inflammatory foods for anti-inflammatory and foregoing ones that cause an unnecessarily high hormone response. Fasting to repair damage within the body.
I'm not saying keto will always out-perform other diets - that's on the individual and what works for them - the pattern of eating can be far more important than what you eat. The question is if that's sustainable and comfortable to do. I know I couldn't do intermittent fasting or prolonged fasting without feeling like crap while relying on glucose.
The guy in the videos is certainly no opponent of healthy eating or keto. He is committed to healthy eating and all statements and videos are based on studies. 100% of the profits from videos, books etc. are donated. He earns his money as a simple doctor. Employees work there on a volunteer basis. There are no sponsors or other companies or people in the background.
In the videos only a small part is about protein. Most of the clearly documented disadvantages have nothing to do with the amount of protein. As I said: There are enough videos and articles on the site and everybody, really EVERYBODY, can read them and form their own opinion.
I should have said it's difficult to trust his opinion and the studies he cites when he makes such elementary mistakes like saying Atkins is a ketogenic diet.
Of one of the studies I was interested in which he links (
Low-carbohydrate diets and all-cause mortality...), they unfortunately don't give a breakdown of what their subjects are eating but only speak of testing high-carb, high-protein diet. They go on to say "
increased intake of protein from animal sources, cholesterol and saturated fat, all of which are risk factors for mortality and CVD.", which is only true in the presence of carbohydrates (or high-protein acting as carbohydrate). Eating more cholesterol will cause the body to produce less. Cholesterol is not the cause of clogged arteries, but a necessary carrier of hormones that is caught up and used to heal inflammation of the arteries caused by carbohydrates which goes on to plaque. Saturated fat makes up 50% of cell membranes as well as being used to create hormones. I'm not surprised at the results given the diet's similarity to Atkins.
For all his good intentions, I have seen plenty of studies and emergent evidence showing benefits to a keto diet. Beyond that, I have myself as evidence and that is most important to me. But absolutely, everyone should form their own opinion.