Mon, Aug-13-12, 19:53
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Senior Member
Posts: 10,116
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Plan: Atkins
Stats: 199/000/000
BF:
Progress: 100%
Location: Southern California
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Kittenann, as I copied from the first chapter, the first posting in this thread says that you can be in a state of homeostasis where your body is burning fat for your brain. However, if you are using this process to lose weight, you have to lower the calories. If you are following their recommendations about protein, then while losing weight, it looks like a higher protein diet as you lower the calories by lowering your fat intake. When you reach maintanence, you add fat in to make up the calories. Not carbs or protein. While losing, then yes, you are using body fat to make up the calorie difference. (I have to take extra salt even tho I could be a pound lighter because of cramps and energy levels being low if I don't. It makes a big difference in my night an day, enough to justify a pound. I also take magnesium and pottasium because low carb depletes them all.)
This is one way of eating for some people for life. It may also provide more energy for serious athletes. I am about ready to end this, I will see if I am still in ketosis when I come home and make some decisions then.
Quote:
Taken from Chapter 1
Defining 'Nutritional Ketosis'
The second way to define "low carbohydrate" is physiologic – specifically that level below which there is a fundamental shift in your body's fuel homeostasis (i.e., energy regulation) away form glucose as a primary fuel. This shift is the adaptation of the body's hormonal set and inter- organ fuel exchange to allow most of your daily needs to be met by fat, either directly as fatty acids, or indirectly by ketone bodies made from fat. This process, …, begins for most adults when total carbohydrate is restricted to less than 60 grams per day along with a moderate intake of protein. After a few weeks at this level, the primary serum 'ketone' (beta-hydroxybutyrate or B_OHB) rises above 0.5 millimolar (mM). At this ketone level, which is ten-fold higher than that in someone with a daily intake of 300 grams of carbohydrate, their brain begins to derive a substantial portion of its energy needs from B-OHB, resulting in a commensurate reduced need for glucose.
With further restriction of carbohydrate below 50 grams per day, the serum B-OHB rises in response to reduced insulin secretion. However, because dietary protein prompts some insulin release, and serum B-OHB itself stimulated insulin release by the pancreas, (albeit subtly), adults eating 20 grams of carbohydrate and 75-150 grams per day of protein rarely run serum above 3 mM. …
This 10-fold range of serum ketones, from 0.5 to 5 mM, is your body's normal physiological response to varying degrees of dietary carbohydrate and protein restriction. This response rate is called 'nutritional ketosis', and is associated with metabolic adaptations allowing your body to maintain a stable stare of inter-organ homeostasis. This process is dependent on an adequate, albeit minimal, ability of the pancreas to produce insulin in response to dietary protein and serum ketones, thus maintaining serum B-OHB in the range where it replaces much of your body's (and your brain's) need for glucose without distorting whole-body acid-base balance
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When burning your own body fat, it looks like it’s a high protein diet. But the scales go down because the body’s burning it’s own fat stores. But if that persons loses weight and decides to stay on low-carb as a maintenance diet, in order to become weight stable, they need to eat a considerable amount of fat now, in other words, they need to increase their fat intake, which should work fine, because by now, their body should be very efficient at burning fat.""""
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Last edited by Aradasky : Mon, Aug-13-12 at 20:10.
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