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May I ask what kind of carbs you include in your diet?
Quinoa, whole fruits, whole pasta, rye bread, beans. Every now and then I eat white rice as I dislike the brown one.
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Humans can produce all the glucose they need when in nutritional ketosis or starvation ketosis. https://en.wikipedia.org/wiki/Gluconeogenesis
but does that make it the "default energy System"?
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> the only thing that dieticians are consistently against is sugar in large doses. Not all sugar is the same. In fruit is in fructose form and "fiber bound". Refined sugar is the devil, but so are most refined products. Fructose be absorbed by cells with little to non insulin. Also, in the company of fiber it gets absorbed slower into the blood (less sugar spike). Finally there's the fat-sugar issue: in the company o…
Fructose, in fact is the villain. Check out https://peterattiamd.com/rickjohnson/
Although for sure, you have to be careful drinking a lot of fruit juice etc.
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Why? Paleolithic area humans may have had a life expectancy of 30-35 but it had nothing to do with diet, it has to do with so many dying as children (obviously not diet related), but once you passed the age of 5 you were generally going to live to your 60’s.
> it had nothing to do with diet > obviously not diet related You are making some pretty black and white statements without any evidence to support it but giving you the benefit of the doubt and assuming all that is true, that does not mean that if you eat like them you will live long.
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Weight loss comes from having a calorie deficit, not from keto. You can gain weight on keto if you eat more calories. You can achieve the same weight loss by just eating fewer total calories, without cutting carbs as well.
Sorry, but your statement is as true as it's pointless. Consider: healthy people who are injected a small dose of insulin experience tiredness (reduced energy use) and increased hunger. Contrary to eating fats, eating carbs triggers the release of insulin. Young, healthy people who have a properly working endocrine system handle eating carbs fine. But for those who don't, it's a different story. Just like those test…
However prescribing it as the default solution isn't right. If you're gaining weight the default solution is to reduce total calorie intake. Most of the benefits people see on keto can just as easily be had by simply avoiding processed junk foods. Demonizing carbs is counterproductive as it causes people to needlessly exclude nutritious foods like fruits from their diet. Yes, you will feel hungry on a low calorie diet initially. Keto will also give you the "keto flu" in the first week. Later on your body adapts to it (in both diets). The insulin release and hunger is your body's primary mechanism developed over hundreds of thousands of years. If you're advocating bypassing that in favour of something else, you better have a very good reason to do so.
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This is well understood by now. The issue is that most people aren't actually going to track their calories- they eat when they're hungry. If you adjust your diet- you can satiate your appetite on a lower number of calories. The idea is that meats, vegetables, and fats help you meet your nutritional goals on a fewer amount of calories when compared to carbs- because carbs are empty calories.
> The idea is that meats, vegetables, and fats help you meet your nutritional goals on a fewer amount of calories when compared to carbs- because carbs are empty calories. A minor correction: carbs are not necessarily empty calories. If you consider only sugary soda, then yes. There’s no one verb either. There are simple carbs, complex carbs, etc. The best kind of carbs are from whole foods (not refined where fiber a…
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> If it worked, why do we still have an obesity epidemic not everyone follows the advice? It takes a LOT of effort and discipline? Food is a powerful vice and coping mechanism. Addiction of any kind is not an easy thing to overcome especially when that addiction is so normalized. > Are there still people who haven’t heard this message? I think in most first-world countries no, but there is a massive difference betwee…
>It takes a LOT of effort and discipline That's the whole point, low-carb takes less effort and discipline for the same result
After going down the rabit whole of trying to understand all the details of nutrition. What eventually worked is the simple and stupid advice: eat less, move more.
The problem is that there are no easy 30 day hacks, which is what people often expect.
From my perspective, whichever diet, it will take time and you need to make lasting lifestyle changes. The rest are implementation details.
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Unfortunately almost no human nutrition studies meet evidence-based medicine standards. And in fairness to the scientists, the constraints imposed by funding and ethics make it impossible to do really meaningful research. All we get are observational studies which show some correlation, often mixed up with multiple uncontrolled confounding factors. So if you want to try a different diet like extreme low carb or whate…
> In the worst case it probably won't kill you Unfortunately, that is also not necessarily true: https://pubmed.ncbi.nlm.nih.gov/19027591/ https://pubmed.ncbi.nlm.nih.gov/15679508/ https://pubmed.ncbi.nlm.nih.gov/15329077/ https://pubmed.ncbi.nlm.nih.gov/11575609/
Can someone explain why ketosis is the secondary energy system in the body and not the primary?
Our bodies are primate bodies. Primates are frugavorian omnivores (get most calories from fruit, and eat very little animal tissue (mostly insects)). Fruit contain mostly carbs: short carbs a.k.a. sugars. We're optimized for eating lots of sugar. Primates have a hard time producing fat from carbs (a process called lipogenesis), just a few calorie% per day. This, combined with the tiny bits of fat in fruits/insects, w…
Yeah, sure, we’re made to primarily eat something you can’t find for 9 out of 12 months. How do you keep believing this crap?
> Yes. It's been shown again and again in large studies that humans do better on predominantly whole plant foods.
No, it really was not. Any research you link to will be riddled with problems like measuring the wrong thing or affected by heathy user bias. Just because it confirms your belief doesn’t make it a good source.
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[3] is very much not correct. Your brain can just fine on ketones. Your body is also capable of making it's own glucose, for the organs that need it: https://chem.libretexts.org/Bookshelves/Biological_Chemistry... .
I have edited my comment to reflect that glucose is not the only energy source (although it is still REQUIRED)
So keto is very much the primary system, breaking down carbs is actually a “holy crap look at all this energy in our bloodstream, let’s secrete insulin and shove it all into lipid cells so that it can later be used BY KETO, OUR PRIMARY ENERGY SYSTEM”.