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Originally Posted by bblair
(Post 23693214)
Q: can a person actually become "adapted" or is this simply physiology?
How awesome is fat though, it is hard to overeat it, but French cultured butter with sea salt crystals really puts this to the test. In all seriousness though, I'd consider "adapted" as something somebody is comfortable and performant with. Personally, I eat my fatty food, and then I ask things of my body and I get them. Could my peak wattage be 5% higher on carbs? It is possible. Could I tell? Most likely not. Then there is endurance, recovery, rinse and repeat, logistics of nutrition, all of which become ridiculously easier/better. |
Originally Posted by bblair
(Post 23693214)
Q: can a person actually become "adapted" or is this simply physiology?
Q2: Would not an athlete who is termed "adapted" also be a fitter person, thus being stronger, faster, etc.? This study (link below) was a "cross-over" study... so each person's ability to metabolize fat was essentially a control on themselves.. each participant did BOTH diets with a washout period between and the differences were VERY apparent... previous studies that did less that 4weeks adaptation didn't show these results.. so in addition to the higher cross over point and the higher fat metabolism ratef or those "fat adapted".. this and other studies show there is adatation that happens over some period... minimally 4 weeks.. Half the group did a keto diet (HF) for one month.. other half did high carb diet (HC) for one month... both continued to train.. then there was a washout period.. then they switched and the group that had done HF did HC and group that had done HC did the HF.
Originally Posted by bblair
(Post 23693214)
Q3: Bonus question. If I am both fat and carb "adapted" before that was what, protein adapted? That is all that is left.
Originally Posted by bblair
(Post 23693214)
OK, one more. According to my recent VO2 Max test, I switch from burning fat to carbs around 85% of my max HR. So, right around there is where I should train, right? According to the analysis that I was given, that is Zone 2, but in all honest, that is too high for me to sustain over a long period.
Edit: that Z2 was from my actual test. RWGPS calculates that as a Zone 4 HR, which fits better with my perceived rate of exertion or whatever that is called.[/QUOTE] **So this is link to the actual study of the 6x800 study that yeilded the 85% crossover and the as high as 8.5g/min on keto diet.. so you can see study design.. the other link I provided was analysis of this study in comparison to previous studies that didn't allow Low and high carbohydrate isocaloric diets on performance, fat oxidation, glucose and cardiometabolic health in middle age males |
Hey, physiology class was a very long time ago! Like 50 years.
I am looking at my "Effective Fat Burn" chart from my test last month. Total calories from carbohydrates increases steadily from the start to maximum HR and effort. Fat calories peaks around HR of 139 and by max of 163 is zero.. |
Do keto athletes perform any better than athletes that don't restrict carbohydrates?
The answer appears to be mostly no, and in some ways keto athletes are slower. While they may be able to perform longer at moderate intensities, they fall short at higher intensities that require carbohydrate fuel. One of the cleanest studies showing the difference is Burke et al 2017, which found the following keto vs. carb:
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Originally Posted by terrymorse
(Post 23693452)
Do keto athletes perform any better than athletes that don't restrict carbohydrates?
The answer appears to be mostly no, and in some ways keto athletes are slower. While they may be able to perform longer at moderate intensities, they fall short at higher intensities that require carbohydrate fuel. One of the cleanest studies showing the difference is Burke et al 2017, which found the following keto vs. carb:
Don't get me wrong... I have experienced the dip in high intensity thing and did resort to "carb cycling" (that I'll talk about later).. but it totally allows you to keep doing keto in general, but use carbs strategically... Now that we understand how some of this works... it REALLY does not have to be an either or... it can be... how can I manipulate these affects to my benefit to eek out more performance?? How can I use keto.. carbs and these affects as a TOOL.. effectively to increase performance..
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Originally Posted by MonsieurChrono
(Post 23693291)
I'm egg-adapted myself.
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When it comes to nutrition, I rely on data-confirmed methods and avoid "creative and out of the box thinking".
You'll find high quality, "in the box" recommendations from nutrition scientists like Walter Willett and Christopher Gardner. They both recommend plant-based, whole-food diets with lots of vegetables, fruits, legumes, nuts, and seeds -- and minimal saturated fats, refined carbs, and added sugar. |
Originally Posted by terrymorse
(Post 23693592)
When it comes to nutrition, I rely on data-confirmed methods and avoid "creative and out of the box thinking".
You'll find high quality, "in the box" recommendations from nutrition scientists like Walter Willett and Christopher Gardner. They both recommend plant-based, whole-food diets with lots of vegetables, fruits, legumes, nuts, and seeds -- and minimal saturated fats, refined carbs, and added sugar. ...they were... are wrong!!! |
“The preeminent nutrition scientists who are actively involved in research, that literally every expert group in the world agrees with, are wrong!!!”
Who is the clown? |
Originally Posted by terrymorse
(Post 23693592)
When it comes to nutrition, I rely on data-confirmed methods and avoid "creative and out of the box thinking".
You'll find high quality, "in the box" recommendations from nutrition scientists like Walter Willett and Christopher Gardner. They both recommend plant-based, whole-food diets with lots of vegetables, fruits, legumes, nuts, and seeds -- and minimal saturated fats, refined carbs, and added sugar. Walter Willett's Institutional and Corporate Funding Estimates As a long-time leader at the Harvard T.H. Chan School of Public Health, Willett has overseen millions in funding. Key estimated figures include:
In 2025, Willett’s research facility faced a major financial crisis due to the federal termination of 350 grants, totaling $230 million in annual funding for Harvard Medical School projects.
Christopher Gardner Corporate and Industry Funding Gardner’s research at Stanford often relies on industry "gifts" to fill gaps in federal funding.
Gardner has received substantial support from foundations with specific dietary agendas.
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:rolleyes:
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A clown is someone who says... avoid processed food... EXCEPT "meat" made in a lab by people that send me a cheque every month 🤦🏾♂️🤡
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Originally Posted by I Like To Ride
(Post 23693585)
For the last 30 years of my life ( I am 56 now ) eggs have been my breakfast staple. I eat 6 whole eggs for breakfast daily 7 days per week. But I don't eat them alone, I also love good quality bread so I include a chunk of sourdough bread or dark whole grain rye bread with my eggs. I've gone through a lot of eggs in my life and have no plans of stopping anytime soon.
I use that heavy whole grain rye bread to lay the scrambled eggs on, it makes it easier to clean the plate too as it soaks up any grease. Sometimes I add cherry tomatoes, like in the pic below, but I always include walnuts as a side for the extra crunch, eggs and walnuts pair really well together. https://cimg9.ibsrv.net/gimg/bikefor...8656112591.jpg |
Originally Posted by MonsieurChrono
(Post 23693708)
Probably nothing better for breakfast than eggs!
Eggs are great as long as you eat the yolks because that's where all the important nutrients are. Many people are afraid of eating egg yolks because they are misinformed thinking that egg yolks are unhealthy. I find eggs filling, satisfying and very easily digestible and they combine very well with almost any other type of food. I can eat them 30 min before my ride then get on my bike and start riding without any digestive issues. After a breakfast like that I am good for up to 3 hour bike ride without needing to ingest any calories. If my rides are longer than 3 hours I will bring some snacks usually some dried dates and peanut butter or some other real food. I never fuel with sports drinks or energy gels. |
Originally Posted by terrymorse
(Post 23693452)
Do keto athletes perform any better than athletes that don't restrict carbohydrates?
The answer appears to be mostly no, and in some ways keto athletes are slower. While they may be able to perform longer at moderate intensities, they fall short at higher intensities that require carbohydrate fuel. One of the cleanest studies showing the difference is Burke et al 2017, which found the following keto vs. carb:
I like to critique studies, charts... look for weaknesses or biases that the testers may have. I'm far from a scientist or researcher - but I apply basic common sense principles when looking thru all of the data, charts and statistics that are attached to these studies... Common sense on this one, and correct me if I'm wrong - "three week diet intervention". In my best Philly based voice, using good ole regular person words - 3 weeks ain't enough son. The majority of studies that I've seen where they attempt to disprove the "keto" athlete don't allow enough time for the athlete to adapt. Keto adaptation in the normal human takes 3 weeks. To train the body to run efficiently on fat for long durations, endurance exercise durations - takes time. Endless time - just like endurance training itself. Results take time. Many hours per week. Week after week, month after month, year after year. On the other hand, most studies that try and tout "keto" for performance don't include enough high intensity work. What I've personally found - after nearly 6 years of low carb, or "keto" if you like: -"keto" allows for seemingly endless energy at low intensity - this isn't really up for debate. -"keto" allows for a bunch of Z3 work to be completed with only a small amount of carbs needed to supplement. -higher zones need carbs - this isn't really up for debate. How many carbs - now we have something to discuss. We are not Pogi - we don't put out Pogi power. We don't need Pogi carbs. And this is a trap many Joe Blows fall into - I'm gonna eat like Pogi!!. I'm going to give a great personal example - a study cohort of 1 duffer rider. -I did a 2 hour Z3 ride, low tempo at 205-210w+/-. No added carbs for the day - my normal low carb meals. During the ride I ate 2 of those tiny Halloween sized snickers bites - the real tiny ones, like 1/2" squared. -I maintained the same power, HR and RPE for the entire ride. -I did a 3 min+/- Z4 effort at the end. Maybe 30 or 40 total carbs over 2 hours. Just enough to keep the BG's topped off. I could have stuffed the recommended 60+ grams per hour down my gizzard during the ride, pre ride loaded up, post ride loaded up - and gained what? |
Originally Posted by I Like To Ride
(Post 23693725)
Eggs are great as long as you eat the yolks because that's where all the important nutrients are. Many people are afraid of eating egg yolks because they are misinformed thinking that egg yolks are unhealthy. I find eggs filling, satisfying and very easily digestible and they combine very well with almost any other type of food. I can eat them 30 min before my ride then get on my bike and start riding without any digestive issues. After a breakfast like that I am good for up to 3 hour bike ride without needing to ingest any calories. If my rides are longer than 3 hours I will bring some snacks usually some dried dates and peanut butter or some other real food. I never fuel with sports drinks or energy gels.
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Originally Posted by Jughed
(Post 23693736)
I could have stuffed the recommended 60+ grams per hour down my gizzard during the ride, pre ride loaded up, post ride loaded up - and gained what?
As you mention, and it was mentioned again here or elsewhere, I can't remember, it'd be cool to have a study with some mixed intensities instead of a consistent pace to exhaustion. |
As usual, the discussion eventually descends into the Conspiracy Zone.
People don't eat junk because they were brainwashed by the Big Burger Cabal. People eat junk because it taste good, it's easy to find and relatively cheap. Stores sell it because people buy it. Period. |
Not a conspiracy.. wrong incentive structure
Originally Posted by bblair
(Post 23693797)
As usual, the discussion eventually descends into the Conspiracy Zone.
People don't eat junk because they were brainwashed by the Big Burger Cabal. People eat junk because it taste good, it's easy to find and relatively cheap. Stores sell it because people buy it. Period. But what about other stuff that has merit or promise but their is no profit to be made.. or would end in upheaval or retooling of industries.. it doesn’t get funded unless businesses see a way to make some money out of it.. again… this makes total sense.. they are a business!! But this is a huge problem.. because we end up leaving a lot of questions unanswered.. solutions untested.. then people say… well where is the study to prove that? Well it never got funded! Even when people do their own n=1 and have success.. lost weight, lip panels improve.. get off their meds… well that can’t work because there is no study showing that! There is a recent research study for keto.. it had to be crowd funded.. they basically had to beg people for money so they could do research.. essentially to shut people up when they say.. where is your study? And they are continuing to do that for a follow up.. that is just sad!! so it’s not about a cabal.. conspiracy.. it’s a screwed, unhelpful incentive structure based on on profit.. because businesses provide the money for research so OF COURSE they will only fund stuff with potential ROI.. because that’s what businesses ARE SUPPOSED TO DO.. but that doesn’t mean this set up is good to move science and human health forward.. it CLEARLY does not.. chronic disease is RAMPANT.. CLEARLY lifestyle changes can prevent a lot of it.. but there is a lot of money in treatments rather than prevention so that’s the research that gets funded.. again.. not conspiracy.. it makes sense.. but it’s not helping us to prevent disease! |
Don't conspiracy theories by definition presume secrecy to a certain extent?
There is nothing really secret about it, you can read the ingredients on fake food, the disclosures and funding information in research, etc, OK, perhaps not everything is always out in the open, but it easy to find more information with a bit of search. |
Of course. I agree with most of that.
But what is not often included in those studies is that people do not always act rationally. Even if it is not in their best interest. For example, there is not one person on planet earth that believes that smoking is not bad for your health. Or excessive drinking, or not wearing a seatbelt, and on and on. But people still do it. Just like Nancy Regan's "just say no." Sounds great. Makes sense. Doesn't work. |
Re: post 169:
I've been subscribing to JAMA online for many years. A couple years ago they published a study which found that 85% of the nutritional studies they had previously published were flawed by reason of researcher bias, usually employment. They now have almost completely eliminated nutritional studies. Summarizing Terrance, there's just no money in being honest. It's a capitalist economy. OTOH a socialist economy doesn't look that great either. We do the best we can. |
Originally Posted by bblair
(Post 23693840)
Of course. I agree with most of that.
But what is not often included in those studies is that people do not always act rationally. Even if it is not in their best interest. For example, there is not one person on planet earth that believes that smoking is not bad for your health. Or excessive drinking, or not wearing a seatbelt, and on and on. But people still do it. Just like Nancy Regan's "just say no." Sounds great. Makes sense. Doesn't work. |
Just gonna throw this out there... calmly roll a genade into the room 😂
Half of biomedical research studies don’t stand up to scrutiny – and what we need to do about that What if I told you that half of the studies published in scientific journals today – the ones upon which news coverage of medical advances is often based – won’t hold up under scrutiny? You might say I had gone mad. No one would ever tolerate that kind of waste in a field as important – and expensive, to the tune of roughly US$30 billion in federal spending per year – as biomedical research, right? After all, this is the crucial work that hunts for explanations for diseases so they can better be treated or even cured. Wrong. The rate of what is referred to as “irreproducible research” – more on what that means in a moment – exceeds 50%, according to a recent paper. Some estimates are even higher. In one analysis, just 11% of preclinical cancer research studies could be confirmed. That means that an awful lot of “promising” results aren’t very promising at all, and that a lot of researchers who could be solving critical problems based on previously published work end up just spinning their wheels. |
Originally Posted by TerrenceM
(Post 23694031)
Just gonna throw this out there... calmly roll a genade into the room 😂
Half of biomedical research studies don’t stand up to scrutiny – and what we need to do about that Compounding the problem is that the popular press sees these "studies"/press releases and publishes them with headlines, "New studies show....." For example, the conventional wisdom, for whatever that is worth (zero) is that caffeine is an aggrevating factor in dementia and Alzheimers. Yesterday I saw a headline, "studies show..." and it was the exact opposite. I am no where near an expert, but have read a lot of studies through the years (retired dentist) to know how to read the lit. The average schmo has no frikkin idea and the "journalists" who report it are even worse. |
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