Dr Kurt Harris answers the question 'Can dietary fat be stored as bodily fat?'
Short answer: yes.
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Source: Insulin is a doorman at the fat cell nightclub, not a lock on the door I also liked the metaphor in the title. :lol: |
We already know all that. But the more appropriate question is can we grow fat, grow overweight, grow obese by eating a boatload of fat and if so how much fat must we eat to do so?
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I swear Martin, I've grown so amused by the unpredictable (and mostly uninteresting) response of my body to various eating arrangements, that I'm seriously considering having some 1-week periods of rather bizarre food focuses. Like cream and protein powder, or something. I'm tempted to think that living on fat and some protein would not make anybody fat. If my carbs are <40, especially <30, I can eat damn near anything and any amount and not gain weight. But I can gain weight on calories allegedly waaaaay under my BMR if (a) they are way too low, or (b) the are high-carb, or (c) they contain low-carb slimfast (yes seriously). I know they say that too much fat/protein would cause weight gain but in the absence of most carbohydrate that just doesn't seem to happen. Not for me, not for some other folks I've seen who've tried things like that.
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My eyes are bleeding! This guy needs an editor!
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Right? Atkins, thirty or forty years ago? He might want to direct his readers to the basic literature, eh? (I know it's hard to write a blog when it has all been said before.) Quote:
Yes. And can this amount of fat be consumed without puking? Difference between animal fat and plant fat? Did any of the blog commenters ask any good questions? |
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I wasn't aware that Atkins fingered insulin in any of his literature. |
I realize I may sound very uneducated with this question but I need to ask it while this thread is new. (I am going back to read Atkins as well. I am already a true convert to this WOE, but I want to be able to explain it to others who have not yet adopted LC.):
What happens to the fat when someone eats high fat and high carb? (Would most of it be stored as TGs along with the excess carbs?) Does the high fat in addition to the high carb exacerbate the problems that the excess carbs cause? |
Something happens to the fat you eat, other than getting excreted. If you were just passing it through, you'd have symptoms like taking Alli, pleasant things like fecal incontinence... i.e. pooping your pants, or "brown outs" as we called them in my family. You know, you think you farted but got a little something extra. :lol: My apologies to the squeamish!
So it requires insulin to store fat but as far as I know, there's always insulin around, you'd probably die if you had no insulin, and we can take type 1 diabetics for telling us about that. But what if you don't have lots of insulin? Fat has to be converted to triglycerides to be burned. But so do carbs. I suppose the biggest difference is that there's loads of insulin around when you eat carbs. |
Remember the article was written in response to a question from a reader, so not everyone knows that. Myth spreads faster than science.
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The fat is stored until the carbs are burned, stored or converted to fat. Then, if you had a healthy metabolism, insulin levels would come down and the fat you ate would be released to be burned, and you wouldn't gain or lose weight. |
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Well, first, the fat is not the problem regardless of how much carbs we eat. The problem is the carbs. Why would fat become bad once as we included carbs? See, it doesn't make sense. The fat still goes in fat tissue as normal, but the carbs shift the balance toward fat accumulation by stimulating insulin which inhibits fat release from fat tissue and by providing the substrate, glycerol, to form triglycerides for storage. Without the carbs, there is much less glycerol and there is much less insulin, so there is much less new trigs being formed and fat is allowed to flow freely from fat tissue. It's more complex than that and we can read about it in Taubes' GCBC but it will serve to answer your question at this time. |
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I don't think most people's blogs have editors. :p It's journalism for everyone, and not everyone is a copy editor. |
Actually, I mostly find him to be well-written. I would agree that this post was not so easy to follow. Maybe he's a little under the weather - his responses in the comments seemed a lot crankier than usual too!
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He is just losing some patience with what he calls the "Zero Carb cartoon ideas of metabolism". We should never forget that we always secrete some insulin. Zero Carb is not zero insulin. Patrick |
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Then our advice to him is that he refrain from blogging on his bad days. As if there aren't enough amateur, unspellchecked Paleo blogs on the internet already! |
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You know, I've never seen a fat carnivore. Have you? I mean, the carnivores that I've seen that do grow fat, do so by eating carbs. So they're not actually carnivore, they're omnivore. It's all well and good that we can store the fat we eat, but that doesn't prove we can grow fat that way. Where's the fat carnivore? He can lose all the patience in the world with the "zero carb cartoon ideas of metabolism" but in the end, he's gotta support his own cartoon hypothesis that we can grow fat by eating only meat. As far as I know, nobody who claimed that we can grow fat by eating only meat has ever supported that claim with evidence. |
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