Carbohydrates are major sources of energy and have some specific roles in the human body. They are the primary sources of fuel for the human brain. Although ketone bodies can supply most of the energy to the brain during a starvation state, the axons cannot use anything but glucose. This makes carbohydrates vital to the function of every single neuron in the brain and in the rest of the nervous system. In addition, carbohydrates are the only sources of fuel that are acceptable to the kidneys and the red blood cells. Now most people will find the necessity of carbohydrates to the red blood cells to be surprising because the red blood cells carry oxygen. However, their job is to transport the oxygen and not to use it up for themselves so they have to derive their energy from anaerobic glycolysis. However, the brain is by far the largest consumer of carbohydrates. The combination of the brain, kidneys, and red blood cells consume an average of about 130 to 150 grams (~500 to 600 calories) of carbohydrates per day.
If the body is deprived of adequate carbohydrates, it will use the processes of gluconeogenesis (making of new glucose) and ketogenesis (making of ketones) to provide energy for vital functions. It is important to note that fats are not good fuels for making glucose because the glycerol group is the only part of a triglyceride that can be used to manufacture glucose. The fatty acids themselves can only be oxidized or converted to ketones.
The major source of raw materials for making new glucose will come from the amino acids in muscle protein. All amino acids have an amine group, a carboxyl (acid), and a side chain which determines the type and nature of the amino acid. The different amino acids are peptide bonded in various combinations to make the different proteins in our bodies.
Whenever the body breaks down protein, the various amino acids are released. Some of these amino acids are suitable for making glucose (glucogenic), some are suitable for making ketone bodies (ketogenic), and some can be used for either purpose. In either case, the body has to remove the amine group from them before it can use them. The removed amine group will join other ions to become ammonia. However, because ammonia is toxic, the body will use the uric acid cycle to convert the ammonia into uric acid. This process takes place in the liver at the same time that the gluconeogenesis and the ketosis are taking place in the liver. Although uric acid is less toxic than ammonia, uric acid can still cause problems such as gout. The kidneys will perform extra work to flush out this uric acid via the urine. Because the kidneys need carbohydrates, they will be low on fuel while performing extra work to eliminate this waste. Loss of lean tissue to supply the amino acids and loss of water due to urine production account for much of the weight loss on low carb diets. Also, fatty acids and amino acids are being converted into ketone bodies to make up for the energy shortage. In other words, of the fat loss that actually occurs, much of it happens because by cutting out carbohydrates, the person is basically cutting calories.
It is important to know that the type of gluconeogenesis due to low carb diets occurs for a different reason and uses different raw materials from the type that occurs between sets of intense exercise. The type resulting from exercise uses lactic acid as the raw material and aerobic lipolysis as the source of energy. The type that results from low carb diets uses deaminated and decarboxylated amino acids as the raw materials, and is a starvation process. In addition, it receives the energy from ketone bodies which result from ketogenesis which is another starvation process. As a result, low carb diets are starvation diets by definition, and they cause the body to cannibalize its own living tissue (muscle) when it is starved of a vital nutrient (carbohydrates). This is consistent with the definition of a starvation diet.
Another interesting fact is that the body will inhibit glycolysis when carbohydrate (glycogen) stores are low. Because carbohydrates (due to glycolysis) produce usable energy (ATP) faster than any other nutrient, this explains the degraded athletic performance and lack of energy experienced by subjects on low carbohydrate diets. It is no surprise that triathletes, marathoners, power lifters, or other high level strength or endurance athletes would perform poorly on low carb diets. Also, the potential risks of low carb diets include overworked kidneys, gout, dehydration, mineral depletion, and hypoglycemia.
In addition to maintaining his career as a professional pilot, Roger has spent much time pursuing formal and self directed studies of the human physiology and metabolism. He is also qualified as a health nutritionist and a fitness trainer. He has written articles for .
You have heard a lot about various low carbohydrates diets and about the great results from these diets. Now you are considering going on such a diet. That’s ok as long as you know how to start.
The first thing to do is to gather some information about the low carb diets in general. There are many books on the subject and a lot of information in internet. The basic thing to remember is that low carb diets change your body metabolism to make it burn fats instead of carbohydrates. To achieve this you will not be consuming foods that are rich in carbs for specific amount of time and afterwards you will be only consuming foods that have really low carb levels.
Of course you will think about the issue if the results are good. Low carb diets are known for their fabulous results that appear quite quickly. Moreover they will not make you suffer a lot because you will be eating most of the foods that you love. However it is important for you to know that low carb diets have one of the highest yo-yo effect levels among all diets. Moreover they are likely to put a great strain on your kidneys.
The next thing to do is to consult with your doctor. A common mistake that many people make is that they start a diet without asking their doctor. Following someone else diet is not good enough since you do not know what are the specific of your body and if this particular diet is good for you. Some diets can do more harm than good so always check with your GP.
After this consultation your doctor will either give you instructions what to eat and what can be taken out of your menu, or will refer you to a specialist dealing only with diet plans. You will have a diet plan made as well as appointments for regular checks. Although that at this stage you may believe you do not need these checks in fact you do. Your body metabolism will go through a lot of changes and you will not be consuming the required daily dose of some essential vitamins and minerals so it will be best if this process is overlooked.
The final thing to consider is if you can be string enough to obey the diet plan strictly. Being on a diet is hard especially in the beginning. You should be committed and get as much support as possible. You can start visiting some support forums or get advice from people you know and who are or have been on the same low carb diet before.
Keith Londrie II is the Webmaster of http://www.low-carb-hig-protein-recipe-atkins-diets.info/ A website that specializes in providing tips on that you can research on the internet. Visit http://www.low-carb-hig-protein-recipe-atkins-diets.info/ today!
How To Lose Weight On A Treadmill plus Top Rated Diet Supplements including How To Loose Weight Tips
Are you one of the many people out there who are having problems with losing weight? Well here’s great news for you.
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People are much interested in dieting at the present time for a variety of reasons and many want to know if online diet plans are going to be helpful to them. Men and women consider diet plans for a variety of reasons other than just for weight loss; maybe they would like to feel more active or improve their body shape. There is very definitely a need for a large section of the population to lose weight when statistics show that around two thirds of the people living in North America are either overweight or obese.
This article investigates the reasons why levels of obesity and diabetes continue to rise. A useful section is contained giving tips on how modifications to diet and lifestyle can help weight control so reduce risk.
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The problem of gaining access weight bother many of us at some point in our lives and we search for the ways to control it either through exercise or by following a proper diet plan. But if take a diet pill along with these measures, it can very well work in our favor and produce quick weight loss results for us. Diet Pills have become an easiest way to lose weight nowadays as they present a most convenient solution for the weight issues.
There are different types of diet pills available in the market that can be used to shed those extra pounds with ease and comfort but is always good to seek medical advice before starting consumption to get best results and to avoid any harmful effect. Broadly, diet pills are categorized as Prescription and Non Prescription Diet Pills.
Prescription Diet Pills are those drugs which are taken post consultation with a medical practitioner and are regulated by FDA. They are primarily meant to cure obesity in persons and therefore are not administered to those who wish to lose only a few pounds. On the other hand, Non prescription diet pills can be taken without a doctor’s prescription and are generally then as weight loss supplements to stay lean and fit.
As both these types work on various mechanisms of weight loss, they are further labeled as , Fat Burners, Carb Blockers, Natural Diet Pills, Fat Blockers, Stimulant-Free Diet Pills, Diet Pills for Women, Diuretic Diet Pills, Bodybuilding Supplements, Hoodia Diet Pills, Herbal diet pills and a lot more. All these diet pills help people lose extra weight quickly and easily.
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Though providing several benefits, it is still wiser to consult a doctor before taking diet pills as there are chances of some side effects such as nervousness, diarrhea, racing heartbeat, high blood pressure, allergy, chest pain, etc. To gather knowledge about the diet pills, one can also read Online Diet Pills Reviews which provide comprehensive information about different types of diet pills. Diet pill reviews act as a guide and may help you to take the right decision. You can read the review and even buy diet pills online from an online diet pill store.
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This is part 1/5 of my new video series for losing quick pounds by not starving yourself. You will be allowed one cheat meal per week. In this 2 month weightloss program you are guarenteed atleast 5 lbs of fat lost in those 2 months. IF you stay point by point to this diet and meal plan….
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