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Medical Forum / General / Nutrition / February 2006Are these LOW-CARB comments accurate?
LOW CARB IS NOT HEALTHY! YOU need carbs to fuel your muscle cells... glucose stored as glycogen in the muscle cells is the first source of energy the body uses during physical activity. think about this.. high protein diets have benefits, but things that are high protein tend to also be high in saturated fats like red meat, cheese, eggs, bacon... It is awesome that you have dropped so much weight and all, but think what your body is missing.... the brain can only use one source of simple sugar- glucose.. which you need from fruits, veggies, and so on. also carbs are the only macornutrient that contain fiber. you should aim for 25-30 grams / day to keep the body feeling full and the GI trac working properly. I am an exercise science student.. please... head my advice.. complex carbs such as legumes, whole grains (oats, fiber one cereal), vegetables, and fruits are GOOD for you!!! _________________________________________________________________- >From a scientific standpoint, that is. Are his comments accurate in saying that the brain can only use GLUCOSE and that muscles need GLYCOGEN in order to function? I have heard, although I don't know how accurate it is, that if there is no GLYCOGEN present that you body can still call upon "alternate" fuel sources to supplu your muscles. Thanks LEESA (I) > LOW CARB IS NOT HEALTHY! YOU need carbs to fuel your muscle cells... > glucose stored as glycogen in the muscle cells is the first source of [quoted text clipped - 21 lines] > > LEESA (I) You can get enough glucose and glycogen from typically non carb foods for these processes. Unless you are running 26 miles, then you may need a bit more in your diet. These so-called dangers are extremely overstated. There is no essential carbohydrate. And a diet low in carbs still contains more than enough carbs for these processes. TC On 1 Feb 2006 09:15:08 -0800, TC wrote in <news:1138814107.951574.90720@g47g2000cwa.googlegroups.com> on sci.med.nutrition : > There is no essential > carbohydrate. True. There is no essential fat either, except for omega fatty acids, afaik. > On 1 Feb 2006 09:15:08 -0800, TC wrote in > <news:1138814107.951574.90720@g47g2000cwa.googlegroups.com> on [quoted text clipped - 7 lines] > > -- You do not understand the term "essential" as it relates to nutrition. http://www.answers.com/topic/essential-nutrient TC >>> There is no essential carbohydrate. >> There is no essential fat either, except for omega fatty acids, afaik. > You do not understand the term "essential" as it relates to nutrition. > http://www.answers.com/topic/essential-nutrient From that web page: "An essential nutrient is a nutrient required for normal body functioning that can not be synthesized by the body. Categories of essential nutrient include vitamins, dietary minerals, essential fatty acids, phytochemicals and essential amino acids." # Essential fatty acids: * Linolenic acid (the shortest chain omega-3 fatty acid) * gamma-linoleic acid (the shortest chain omega-6 fatty acid) === Only those omega FAs are considered strictly "essential". Not all fats are. That's just what I meant. Wed, 1 Feb 2006 20:12:44 +0100 in article <1kakgbw7e28sa$.dlg@news.lillathedog.net> Enrico C <use_replyto_address@despammed.com> wrote: >>>> There is no essential carbohydrate. > [quoted text clipped - 14 lines] > * Linolenic acid (the shortest chain omega-3 fatty acid) > * gamma-linoleic acid (the shortest chain omega-6 fatty acid) Great, two errors on the same line: 1) Wrong spelling: it's gamma-linolenic acid, not gamma-linoleic acid. 2) Gamma-linolenic acid is neither the shortest chain omega-6 fatty acid nor an essential fatty acid, linoleic acid is. But then it's Wikipedia, perhaps someone just introduced this error. Now, could someone correct it? The page essential fatty acid: Information From Answers.com <http://www.answers.com/main/ntquery?method=4&dsid=2222&dekey=Essential+fatty+aci d&gwp=8&curtab=2222_1&linktext=Essential%20fatty%20acid> seems to have at least this point right.  SignatureMatti Narkia > Wed, 1 Feb 2006 20:12:44 +0100 in article > <1kakgbw7e28sa$.dlg@news.lillathedog.net> Enrico C [quoted text clipped - 38 lines] > -- > Matti Narkia I was surprised that when I did a google search on "essential nutrients" and it didn't find a simple list anywhere. I had to scroll and click thru several pages of results to find that one with the errors. What does that say about the state of the science in nutrition? TC > I was surprised that when I did a google search on "essential > nutrients" and it didn't find a simple list anywhere. I had to scroll [quoted text clipped - 4 lines] > > TC What does it say about your research skills? Did you consider googling up terms including human nutritional requirements? When I did so months ago, it turned up biochemistry textbook chapters on it. Susan > I was surprised that when I did a google search on "essential > nutrients" and it didn't find a simple list anywhere. I had to scroll > and click thru several pages of results to find that one with the > errors. > > What does that say about the state of the science in nutrition? Not a thing. But it says a lot about your research skills. If you include "human nutrition" in your search string, you get a gazillion hits. Susan RE: is a low carb diet dangerous? Low carb is a subjective term. How low is low? I do know that Atkins said in his book to go off his diet for a week before having a glucose tolerance test because otherwise you will test diabetic. Does that worry anyone? Dolores > RE: is a low carb diet dangerous? Low carb is a subjective term. How > low is low? 100 grams of carb or less per day will induce ketosis. > I do know that Atkins said in his book to go off his diet > for a week before having a glucose tolerance test because otherwise you > will test diabetic. Does that worry anyone? Not at all, and I'm not quite sure you got that right. Susan > RE: is a low carb diet dangerous? Low carb is a subjective term. How > low is low? I do know that Atkins said in his book to go off his diet > for a week before having a glucose tolerance test because otherwise you > will test diabetic. Does that worry anyone? I never saw that. Kindly provide a page number. Marcus. I don't remember the page, but I distinctly remember reading in his book that there is a good chance that a person will NOT test diabetic. >I don't remember the page, but I distinctly remember reading in his > book that there is a good chance that a person will NOT test diabetic. Me too. I just wanted the idiot to admit that all his/her ludicrous anti-Atkins sh.t was just *made up*... Marcus. > LOW CARB IS NOT HEALTHY! YOU need carbs to fuel your muscle cells... > glucose stored as glycogen in the muscle cells is the first source of [quoted text clipped - 9 lines] > complex carbs such as legumes, whole grains (oats, fiber one cereal), > vegetables, and fruits are GOOD for you!!! > Are his comments accurate in > saying that the brain can only use GLUCOSE More or less. Under conditions of starvation it can get some energy from fat breakdown, but generally speaking the brain needs glucose which is why there's glucose in the blood. (Most of) the rest of the body runs quite happily on fat and only uses glucose when blood levels get too high and insulin is released. > and that muscles need > GLYCOGEN in order to function? Muscles will run on fat or glucose until the demands are too great and only glucose can be used. Most of the time there's glycogen in the muscles, but all it is, is a store of glucose for when the blood supply isn't enough (usually during prolonged intense exercise). > I have heard, although I don't know how > accurate it is, that if there is no GLYCOGEN present that you body can > still call upon "alternate" fuel sources to supplu your muscles. What whoever wrote it seems to be unaware of is that your body makes glucose from protein. In fact about a fifth of your bodies energy needs come from protein on a typical Western diet. If you eat more protein and less carbohydrate in your diet the liver will just convert more protein to glucose to keep blood levels where they should be. There's also a big difference between "low carb" and "no carb" of course. MattLB On 1 Feb 2006 09:55:41 -0800, MattLB wrote in <news:1138816541.872225.218630@o13g2000cwo.googlegroups.com> on sci.med.nutrition : > What whoever wrote it seems to be unaware of is that your body makes > glucose from protein. From glycerol in fat too, afaik... SignatureEnrico C * cut the ending "cut-togli.invalid" string when replying by email * |
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