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  #1   ^
Old Sat, Dec-07-13, 05:38
JEY100's Avatar
JEY100 JEY100 is online now
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Plan: P:E/DDF
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Default Jeff Volek - The Many Facets of Keto-Adaptation:

New video from The IHMC https://www.youtube.com/watch?v=GC1vMBRFiwE#t=68

Jeff Volek - The Many Facets of Keto-Adaptation: Health, Performance, and Beyond

Quote:
Published on Dec 3, 2013
Obesity is a condition of excess fat accumulation in adipocytes where the person is literally stuck in storage mode diverting a disproportionate amount of calories into fat cells as opposed to oxidation. Thus it is more productive to think of obesity as a problem in 'energy flow' rather than energy expenditure (i.e., calories in, calories out). The most efficient approach to accelerate the body's ability to access and burn body fat is to restrict dietary carbohydrate while increasing fat intake for a period of several weeks, after which fatty acids and ketones become the primary fuel at rest and during submaximal exercise. The coordinated set of metabolic adaptations that ensure proper inter-organ fuel supply in the face of low carbohydrate availability is referred to as keto- adaptation. This unique metabolic state has recently been shown to have widespread and profound therapeutic and performance-enhancing effects ranging from reversing type 2 diabetes to shrinking tumors to allowing ultra-endurance runners to set course records. This presentation will discuss the physiologic effects of very low carbohydrate diets with an emphasis on their unique effects on both features of metabolic syndrome and human performance.


Check the sidebar for other IHMC videos…the Dr. Davis one is good too: William Davis - Wheatlessness: A 21st Century Health Strategy

Last edited by JEY100 : Sat, Dec-07-13 at 06:33.
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  #2   ^
Old Sat, Dec-07-13, 09:33
Franziska's Avatar
Franziska Franziska is offline
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Plan: Low Carb (30-40 g/day)
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Thanks, Janet. I can't wait to listen! I'll admit to getting excited whenever I see the names Volek or Phinney. Definitely my favorite LC authors. I really enjoyed this interview they did a few months back: http://www.youtube.com/watch?v=OFD2q5iqevY
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  #3   ^
Old Sat, Dec-07-13, 09:59
inflammabl's Avatar
inflammabl inflammabl is offline
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Posts: 2,371
 
Plan: Atkins
Stats: 296/220/205 Male 71 inches
BF:25%?
Progress: 84%
Location: Upstate SC
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Quote:
Originally Posted by JEY100
New video from The IHMC https://www.youtube.com/watch?v=GC1vMBRFiwE#t=68

Jeff Volek - The Many Facets of Keto-Adaptation: Health, Performance, and Beyond



Check the sidebar for other IHMC videos…the Dr. Davis one is good too: William Davis - Wheatlessness: A 21st Century Health Strategy


Great find.

I'm going to forward it to my 23yo daughter who is starting to show the same carb problems my sister and I had when we reached our mid twenties.
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  #4   ^
Old Sat, Dec-07-13, 13:24
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CarolynC CarolynC is offline
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Plan: General LC
Stats: 213/169/166 Female 5' 8.5"
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Thanks, Janet! I'd never heard Dr. Volek speak. I enjoyed that. I found his statements (starting at about 40 minutes) about the different ways a body handles dietary saturated fat on low carb versus low fat diets to be particularly interesting.
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  #5   ^
Old Sat, Dec-07-13, 23:00
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Mrs.K Mrs.K is offline
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Plan: ketogenic/VLC
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This is amazing! Thanks for sharing!
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  #6   ^
Old Sun, Dec-08-13, 04:36
JEY100's Avatar
JEY100 JEY100 is online now
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Plan: P:E/DDF
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I like all the JumpStart interviews and lectures too. One of Volek's talks from the low-carb cruise is available on-line, but this lecture is far and away better organized and produced, and very current with the Swedish dietary recommendations noted.
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  #7   ^
Old Sun, Dec-08-13, 07:43
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WereBear WereBear is online now
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Quote:
Originally Posted by JEY100
Check the sidebar for other IHMC videos…the Dr. Davis one is good too: William Davis - Wheatlessness: A 21st Century Health Strategy


I loved that one! Dr. Davis has such an infectious enthusiasm! And a great sense of humor
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  #8   ^
Old Sun, Dec-08-13, 12:30
Nancy LC's Avatar
Nancy LC Nancy LC is offline
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Fascinating stuff at 31 minutes. They talked about giving people in deep ketosis (from starvation) insulin and dropping their blood sugar to 25 mg/dL and they didn't have any of the symptoms of low blood sugar.

So... I'm wondering if folks who are suffering from reactive hypoglycemia would do better if they were deeper in ketosis.
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  #9   ^
Old Sun, Dec-08-13, 21:12
inflammabl's Avatar
inflammabl inflammabl is offline
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Plan: Atkins
Stats: 296/220/205 Male 71 inches
BF:25%?
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Quote:
Originally Posted by Nancy LC
Fascinating stuff at 31 minutes. They talked about giving people in deep ketosis (from starvation) insulin and dropping their blood sugar to 25 mg/dL and they didn't have any of the symptoms of low blood sugar.

So... I'm wondering if folks who are suffering from reactive hypoglycemia would do better if they were deeper in ketosis.


That's a good question. In my ongoing battle against stalls and hypoglycemia, I recently did a fat fast. On day four (or five) I upped my protein and my BG jumped up to 118. Keto's have stayed constant in the 80mg/L range. It's all very confusing and counter intuitive.
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  #10   ^
Old Sun, Dec-08-13, 21:25
Nancy LC's Avatar
Nancy LC Nancy LC is offline
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I take it those aren't blood ketones you're measuring. Urinary ketones are different.

Anyway, I believe it that your bg jumped when you eat more protein. It does for me too.
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  #11   ^
Old Mon, Dec-09-13, 06:31
inflammabl's Avatar
inflammabl inflammabl is offline
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Plan: Atkins
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You're right, urine. I was doing blood ketones for a month and found that when my blood ketone were above 1.0 my urine ketones were consistently >=40. Jimmy Moore had much the same result (although he didn't notice it) for all his blogs I read, about six or eight of them.
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  #12   ^
Old Mon, Dec-09-13, 06:40
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teaser teaser is offline
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roy baumeister- willpower; self-control, decision fatigue, and energy depletion

I ended up watching this video as well. I've got Baumeister's book called Willpower, so it was just a refresher for me. The basic schtick is that if your tempted by something, but resist it, this depletes energy somewhere in the brain, probably in the frontal cortex. And the next temptation becomes harder to resist. It also becomes harder to make decisions (and really, deciding not to do something that you really want to do is just a difficult sort of decision, so the overlap makes sense). Some of Baumeister's studies show a little bit of glucose reversing the effect, but Baumeister suggests a high-protein diet for people playing the home game. It's the old sugar puts you on the rollercoaster, protein provides a steady, sustained source of glucose idea.

One test of willpower was the ability to put your hand in some ice-water--the longer a subject could sustain this, the greater the willpower. The point he made there was that in the will-power depleted state, not only were the subjects unable to hold their hands in the water as long--they also perceived the water as somewhat colder than non-depleted subjects did. He also spoke about other effects, on emotion--sadness, anger--deepening in the depleted state.

On this board, the idea of willpower hasn't always been popular. The idea that naturally lean-types just have greater willpower seems silly--they don't stop at half a slice of pie and insist they're not hungry because they have greater willpower than someone like me (who would finish his pie, and then their half a slice), they do it because half a slice genuinely satisfied their hunger. It's considerably easier for me to not eat pie then to eat a little bit of pie. Moderation is its own worst enemy.

Getting the social-anxiety urge to delete this post as rambling and off-topic, so I'd better get to the point I wanted to post in the first place.

Jimmy Moore--on the higher-protein, low carb diet, he ended up slipping up in weight, he puts it down to the protein. People who followed his story often put it down to the frankenfoods--many of which were high in glycerol. Some high in actual carbohydrate--the breads and pastas made of starches that were supposed to be indigestible, but weren't. But when he was eating these foods, he seemed to have a bit of a sweet-tooth. Once he went ketogenic, even sweet things like diet pop (which he could easily have rationalized, since they were unlikely to drive him out of ketosis), he was able to resist. And he had that bit of chocolate every day the whole time--a perfectly good trigger for a binge, that's sure been enough to trigger me in the past, and I don't have anywhere near Jimmy's sweet-tooth.

You could think this is specific to sweet--but I'm finding if my diet is ketogenic enough (60-80 grams protein, carbs as spinach, lettuce, maybe half an onion a day) binging goes away. Not well tested--I was prone to binges, cut the protein, and haven't binged in the three or four weeks since. It isn't that I'm having urges to binge, and resisting them--the urges went away. Reminds me of the icewater thing--if the people who weren't ego-depleted experienced the water as less uncomfortable--it isn't that they resisted the urge better--it took longer for the urge to build up to the point where it was irresistible. I don't think my binging was caused by the drive to consume glucose, since flax seed really isn't a very good glucose source--but maybe the urge for something vaguely nutty was ramped up, and flax was the closest thing I had.
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  #13   ^
Old Mon, Dec-09-13, 07:19
teaser's Avatar
teaser teaser is offline
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Plan: mostly milkfat
Stats: 190/152.4/154 Male 67inches
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Quote:
Originally Posted by inflammabl
You're right, urine. I was doing blood ketones for a month and found that when my blood ketone were above 1.0 my urine ketones were consistently >=40. Jimmy Moore had much the same result (although he didn't notice it) for all his blogs I read, about six or eight of them.


Thanks for mentioning Jimmy while I was typing out my little essay. Almost makes me seem on-topic.

Atkins seemed to think the urine strips were worth using. I've been using blood glucose strips, strict protein control, and the faith that if blood glucose is below a certain point, and protein and carbs are low enough, I'm probably in some degree of ketosis.
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  #14   ^
Old Mon, Dec-09-13, 21:41
Nancy LC's Avatar
Nancy LC Nancy LC is offline
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Stats: 202/185.4/179 Female 67
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That willpower depletion thing was disproven in later experiments, I believe.
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  #15   ^
Old Tue, Dec-10-13, 07:17
teaser's Avatar
teaser teaser is offline
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Plan: mostly milkfat
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News to me if it has. I'd like to see the studies.

Went to wikipedia to look at ego depletion, saw this study (just the abstract);


Quote:
The Impact of Illusory Fatigue on Executive Control
Do Perceptions of Depletion Impair Working Memory Capacity?

The human mind is quite adept at modifying and regulating thoughts, judgments, and behaviors. Recent research has demonstrated that depletion of self-regulatory resources can impair executive function through restriction of working memory capacity. The current work explored whether the mere perception of resource depletion (i.e., illusory fatigue) is sufficient to directly produce these deficits in executive control. To manipulate illusory fatigue, participants were exposed to a depleting or nondepleting task before being presented with false feedback about the effects of the initial task on their state of resource depletion. Participants then completed a well-established index of working memory capacity. Findings revealed that individuals provided with feedback that led to perceptions of low depletion exhibited greater working memory capacity. This effect was independent of individuals' actual state of depletion and was furthermore mediated by their perceived level of depletion. Implications for spontaneous resource replenishment are discussed.


I think I remember some time way back when we were discussing on this forum a study where glucose was supposed to replete willpower, suggesting that it could as easily be a motivator for activity, rather than repleting lost energy.

This would put it in the realm of a newly discovered process that we knew about all along... the Scooby-snack. Bravery counts as an act of willpower, doesn't it? If an activity led to glucose--of course there should be renewed interest. This is a feeding activity... keep it up. The play at home game would be tic-tacs, during the final exam.

Another study listed is named

Quote:
The idea of money counteracts ego depletion effects


More evidence that what's needed is something to motivate the person, rather than a steady source of glucose. Although I think roller-coaster hunger would still "deplete" willpower in a way--in the sense that it's hard to do math when the most important thing to you at the moment is gnawing hunger

Thanks for the prod, Nancy. I feel kind of silly for forgetting that line of reasoning. I was thinking ketosis might help willpower through a steady supply of fuel to the executive centers--and still think more stable brain energy might be a factor. Decreased motivation to binge makes more sense than increased willpower, and I guess gets me to the same place.
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