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25 thoughts on “Two week study of keto diets inadequate for meaningful conclusions

  1. There’s so much misinformation out there. Bad studies designed to fail, like this 2 week one, is only one problem. Another problem is the basic definition of “low carb”. What is “low carb”? How much? That’s the problem. It can mean different things to different people. Most of the studies that show low carb doesn’t work claim low carb is 30 to 40% if calories. That will NOT cause the average person to switch from being a sugar burner to a fat burner (become fat adapted). Not even close. You have to eat less than 100grams which is less than 10%, if not less than that. Keto says you shouldn’t get more than 5% of calories from carbs. Perhaps rather than saying “low carb” we should all be saying “no carb”. Because when people think of carbs they think of bread, pasta, rice, sugar, etc. They aren’t thinking of the carbohydrates in veggies and nuts for instance. So “no carb” would actually cover the things people consider having carbs.

  2. It seems like the study was designed to give a predetermined result. Why would you even care about calorie intake rather than results?

  3. The only thing this study actually proves is the metabolic advantage of low carb and the inadequacy of calorie model. They ate more calories? So what? They burned fat more effectively and lost weight, and that's exactly what insulin-carbohydrate model is about. It is actually Kevin Hall who is pursuing imaginary data here, speculating that eating more calories will necessary lead to weight gain.

  4. Shenandoah maltz May 17, 2020 at 10:17 pm - Reply

    You have to understand Doc, all the brain dead people that use pure emotion and no brain cells rather be on twitter than go to school and actually learn something of use. Two weeks is a joke. Evidence shows that it takes about 3 months to full adapt to a keto diet because of certain epigenetic mitochondrial changes that have to occur. I do not trust Kevin Hall, he likes to play the all the fools that fall for his crap.

  5. I remember seeing a BBC new documentary where they locked duplicate male twins into a metabolic ward for 24 hours and gave one HCLF and the other LCHF and at the end they concluded the diets made no difference. #FACEPALM

  6. Frankie Fernandez May 17, 2020 at 10:17 pm - Reply

    2 weeks?
    You're barely scratching the surface at 2 weeks. Plant based works good for only a short period before the lack of "essential fatty acids" and "essential amino acids" begins to take its toll.

  7. I think high carb proponents know full well that the body needs time to adapt to a ketogenic diet: the mitochondria, the liver, the pancreas, everything that's needed to make the metabolism function on fat as primary fuel. Running on glucose is easy, it's the first option of the body. It's fast and dirty burning, which is why carbers are always talking about anti-oxidants in plant foods. And, it is plant-based. I think you can find plenty of studies that have been done over the years, where subjects were put in two groups for a short period of time. The high carb group will always appear to do better. I remember seeing one study where the period was only about 5 days, then they the switched. The conclusion was that high carb is much better for mental focus and concentration (really?). Yeah, probably because the subjects on the low carb diet were experiencing keto flu. There's just so much rigged nonsense that has gone on in nutrition research.

  8. Everybody wants a quick pill to get slim. Long term planning has gone out of fashion. No results after two weeks? Rubbish it.

  9. It took me 8 weeks for my insulin to stop going UP on a keto diet. My insulin resistance was bad and it took that long to stabilize me. Now, almost 12 months later, I had labs to prove that keto works and I've dropped 105 lbs. Off all my diabetes meds, my hypertension meds etc. 2 weeks is nothing, not even enough time to detox and get into proper ketosis for those of us who have metabolic syndrome. I think the doctor who ran the test would have a better understanding of metabolic syndrome and how long it takes to reverse it.

  10. Again, you're spot on. Two weeks is nothing. For most people who ate American/European diets, going into a plant based diet is not that much of a challenge for their bodies (I was a vegetarian for 17 years). Keto as you well know is quite something else, the first month your body is working hard to adapt and change. It's a shame the study was so short.

  11. After two weeks on low carb, my cholesterol was up, sugar was unaffected. After several months, everything improved drastically. What happens is that people who have a preconceived bias against low carb / keto design their tests (maybe subconsciously? or out of ignorance?) to fail. Like "low carb" diet tests that are 40% carbs. Obviously, defining low carb as 40% is just redefining the term in order to ensure it fails; tracking results after 2 weeks is the same.

  12. Lucky we have smarter people like this guy. Research too often draw false conclusions out of imaginary facts that someone imagined was the whole truth. FAIL

  13. I suspect that the study was released by Hall, et al, knowing that it was unlikely that it was going to be published at all.

  14. The only thing I would be interested in in such a short study is the insulin responses to the 2 models. I note the plant-based diet evoked signifcantly higher post=prandial insulin spikes.

  15. What has to be done to have some rules for a low-carb / keto study ?
    You have many connection to LC and Keto doctors and nutritionists.
    Establish some rules. If any of those rules are ignored, then the "study" should be dismissed with one comment.
    The authors of the study ignored the rules established by Low Carb Community,
    therefore the outcome of the study has little or no scientific value.

  16. I wonder if two weeks will be enough
    to play a music instrument like a pro
    to become an athlete and compete at high level
    to be a good parent after birth of a child

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