That is incorrect. Hunter/gatherers never used added fat on any of their food and they are perfectly healthy. PSMFs are low carb, low fat diets. It’s not a “no fat” diet. There is no such thing as a “no fat” diet.
The only people who would have adverse effects, following these diets, for a prolonged period of time, are the ones who are only eating the muscle meat of very lean, wild game while having low body fat to begin with.
So, if you are following a very low fat diet or PSMF, you are fine as long as you have excess body fat to lose.
2. The food industry continues to push grain products, which hurt people’s health.
This is because people want them. The operative word here is "industry". They make money selling products that people want.
3. You should have your first meal at 12 noon.
The problem with breakfast was never the breakfast. It was the breakfast foods. You would think that people would have figured this out by now. It's a no brainer.
Like I have said before, it doesn’t matter what times you plan your meals or fasting. You can schedule it whichever way your circadian rhythm prefers. Just be consistent with your times and follow them daily. Do not be erratic.
There is an advantage to earlier eating times, simply because of how insulin functions, coupled with the overnight fast. Not being hungry in the morning has always been associated with active obesity, but at the end of the day, it doesn’t much matter. Just be consistent and don’t deviate from your eating/fasting schedule.
4. It is very dangerous to have low Vitamin D levels.
Everyday a new quack is coming up with a new vitamin that they claim will save you from death and cure all your ailments. This seems to occur in cycles, like fashion designers who will periodically bring back bell bottoms. Sometimes its Vitamin C, other times its Vitamin E and I am sure we all remember the CoQ10 craze or the Vitamin K hysteria. It seems like Vitamin D is back in the mix of things.
The bottom line is that the research hasn’t shown any significant difference in supplementing with Vitamin D or not, unless the person has rickets. No one knows exactly why this is the case. Genetics seems to play a big part on what your Vitamin D levels are and how its used in the body. Why some ancestries seem to maintain such low levels, while still being perfectly healthy, is not well understood.
The only thing that is known, is that people with metabolic disease seem to deplete their B, C and D vitamins. It is very common for these individuals to have very low levels of these vitamins and that's due to metabolic dysfunction and the burden it puts on these specific vitamins.
It also kind of explains why supplementing has not been shown to be effective. After all, if there is a hole in your sink and you are losing water, adding more water to the sink is not going to help. The more you add, the more you lose. Well if your metabolic function is depleting these vitamins, the more you supplement, the more the body will use and you are right back to square one again. You have to fix the hole in your sink, just like you have to fix what’s depleting your vitamins.
So, you have to focus on fixing your metabolic dysfunction and if you want to supplement in the interim, go right ahead.
We don’t discourage supplementation. We just don’t agree that these vitamins are the “cure all” of anything. They aren’t. Only a healthy metabolism improves your overall health significantly.
5. If you follow "keto", you will not get diabetes. Especially if you keep carbohydrates below 20 grams a day and from above ground vegetables only.
That is hypoglycemia. Blood glucose should be around 84 mg/dL and not much lower than that. Unlike what “keto” advocates online say, having no symptoms from blood glucose that has dropped to hypoglycemic levels is not normal, as a blood glucose that low is not normal.
It is not true that you are not having any symptoms because "you are running on fat". That is ridiculous and has nothing to do with what’s occurring because regardless of whether the body runs on fat or not, it likes to keep a very tight range of its blood glucose. That range is always around 84 mg/dL. So, even if you are running on 100% fat, your body will continue to keep its blood glucose at around 84 mg/dL, if it’s healthy.
Having no symptoms of hypoglycemia is called ‘Hypoglycemia Associated Autonomic Failure’ or simply ‘Hypoglycemia Unawareness’. This is common in people with metabolic syndrome/diabetes, since their metabolism is adapted to the erratic highs and lows of blood glucose and their autonomic nervous system (ANS) no longer responds to drops in blood glucose levels by activating counter regulatory hormone action or any symptom of malaise. Many diabetics, unfortunately, die from this condition which tends to occur more often during the overnight fast. The exact mechanism of this phenomenon is still largely unknown.
If you are experiencing this, you need to find out why your blood glucose is going so low. Get this checked out immediately by a healthcare professional in order to determine if your blood glucose is dropping because of some medication you might be on, while also following a low carbohydrate diet. Your medications might need to be changed, but you absolutely have to tell your doctor that you are experiencing no symptoms of this blood glucose drop.