Professor Timothy Noakes (born 1949) is a South African professor of exercise and sports science at the University of Cape Town. He has run more than 70 marathons and ultramarathons and is the author of several books on exercise and diet. He is known for his support of a high-fat, low-carbohydrate diet, as set out in his book The Real Meal Revolution.
Low-carbohydrate Diets: Nutritional And Physiological Aspects.
Low-carbohydrate diets: nutritional and physiological aspects. Cerestar R&D Vilvoorde Center, Havenstraat 84, 1800 Vilvoorde, Belgium. Recently, diets low in carbohydrate content have become a matter of international attention because of the WHO recommendations to reduce the overall consumption of sugars and rapidly digestible starches. One of the common metabolic changes assumed to take place when a person follows a low-carbohydrate diet is ketosis. Low-carbohydrate intakes result in a reduction of the circulating insulin level, which promotes high level of circulating fatty acids, used for oxidation and production of ketone bodies. It is assumed that when carbohydrate availability is reduced in short term to a significant amount, the body will be stimulated to maximize fat oxidation for energy needs. The currently available scientific literature shows that low-carbohydrate diets acutely induce a number of favourable effects, such as a rapid weight loss, decrease of fasting glucose and insulin levels, reduction of circulating triglyceride levels and improvement of blood pressure. On the other hand some less desirable immediate effects such as enhanced lean body mass loss, increas
What is INSULIN RESISTANCE? What does INSULIN RESISTANCE mean? INSULIN RESISTANCE meaning - INSULIN RESISTANCE definition - INSULIN RESISTANCE explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/... license. Insulin resistance (IR) is a pathological condition in which cells fail to respond normally to the hormone insulin. The body produces insulin when glucose starts to be released into the bloodstream from the digestion of carbohydrates in the diet. Normally this insulin response triggers glucose being taken into body cells, to be used for energy, and inhibits the body from using fat for energy. The concentration of glucose in the blood decreases as a result, staying within the normal range even when a large amount of carbohydrates is consumed. When the body produces insulin under conditions of insulin resistance, the cells are resistant to the insulin and are unable to use it as effectively, leading to high blood sugar. Beta cells in the pancreas subsequently increase their production of insulin, further contributing to a high blood insulin level. This often remains undetected and can contribute to a diagnosis of type 2 diabetes or latent autoimmune diabetes of adults. Although this type of chronic insulin resistance is harmful, during acute illness it is actually a well-evolved protective mechanism. Recent investigations have revealed that insulin resistance helps to conserve the brain's glucose supply by preventing muscles from taking up excessive glucose. Insulin resistance should even be strengthened under harsh metabolic conditions such as pregnancy, during which the expanding fetal brain demands more glucose. People who develop type 2 diabetes usually pass through earlier stages of insulin resistance and prediabetes, although those often go undiagnosed. Insulin resistance is a syndrome (a set of signs and symptoms) resulting from reduced insulin action; it is also part of a larger constellation of symptoms called the metabolic syndrome. Insulin resistance may also develop in patients who have recently experienced abdominal or bariatric procedures. This acute form of insulin resistance that may result post-operatively tends to increase over the short-term with sensitivity to insulin typically returning to patients after about five days.
Physiological Insulin Resistance
Back in mid summer 2007 there was this thread on the Bernstein forum. Mark, posting as iwilsmar, asked about his gradual yet progressively rising fasting blood glucose (FBG) level over a 10 year period of paleolithic LC eating. Always eating less than 30g carbohydrate per day. Initially on LC his blood glucose was 83mg/dl but it has crept up, year by year, until now his FBG is up to 115mg/dl. Post prandial values are normal. He wanted to know if he was developing diabetes. I've been thinking about this for some time as my own FBG is usually five point something mmol/l whole blood. Converting my whole blood values to Mark's USA plasma values, this works out at about 100-120mg/dl. Normal to prediabetic in modern parlance. However my HbA1c is only 4.4%, well toward the lower end of normality and healthy. That's always assuming that I don't have some horrible problem resulting in very rapid red blood cell turnover. I don't think so... I spend rather a lot of my life in mild ketosis, despite the 50g of carbs I eat per day. So I can run a moderate ketonuric urine sample with a random post-chocolate blood glucose value of 6.5mmol/l. What is happening? Well, the first thing is that LC eati
FREE 6 Week Challenge: https://gravitychallenges.com/home65d... Fat Loss Calculator: http://bit.ly/2O6rsdo The carb cycling diet is one of my favorite diets because it is one of the fastest way to burn fat while retaining as much muscle as possible. Most people don't know that carb cycling is actually a form of ketogenic dieting. The ketogenic diet is a diet that is lower in carbohydrates, which makes our body convert more dietary fat and body fat in to keytones in the liver. Which it then goes on to use for energy. Like I've said in many of my videos the human body prefers to use carbs as its primary source of energy. You're body won't produce too many keytones on a high carbohydrate diet, because your body won't need extra energy from fat due to the fact that its getting its energy from the more preferred carbohydrates. The only way for our body to use more fat for energy is by not having its preferred source there all the time. Eliminating carbs completely, however can have many drawbacks on our health and well being. Protein, carbs, and fats are all important and necessary for our body. So in comes the cyclical ketogenic diet aka carb cycling and also known originally as the anabolic Diet. There are many different approaches to carb cycling, but the general idea is that At some points of the week you're going to have a high amount of carbohydrates, and at other points of the week you're going to have a low amount of carbohydrates. Setting up the high carb and low carb splits will vary from one plan to the next. Some people may have very small changes in the amount of carbs they have from day to day. An example of this would be to set up a low carb, medium carb, and high carb day. Let's say 300 grams of carbs on high carb, 250 grams of carbs on your medium carb, and 200 grams of carbs on your no carb day. Another more advanced approach would be to do a High carb, low carb, and no carb day. The way that I like to set this kind of split up is by having a high amount of carbs on my high carb day, which for me would be somewhere around 400 grams, I would have one third or at the most half that amount for low carb day, and then try to get as close to 0 grams as possible on my no carb day and then repeat. An even more advanced approach would be to just cycle between high and no carb days. Or take it even a step further and do high, no, no. I don't really recommend having any more than two no carb days in a row. Make sure you don't jump to any extreme carb restrictions. An example of this is doing a 800 calorie diet when you could lose weight and maintain a better body composition with a 1500 calorie diet. Jumping to an extreme will not help you lose weight faster, in fact it'll probably backfire. Also in case you're wondering what kind of food you can eat on your no carb day, some great options are fish, chicken breast, ground turkey, protein shakes, Steak occasionally, and you can also have healthy fat sources like avocados, coconut oil, olive oil. and fatty fish like Salmon. For carbs make sure you are eating good sources of carbs like oats, brown rice, and sweet potatoes and avoid the junk food carbs. You can incorporate one cheat meal on one high carb day in the week, but that's it one cheat meal. You may notice that your strength and energy levels may go down while dieting like this. In fact you may feel like straight up garbage in the beginning. Understand that a lot of people feel this way when creating any kind of a calorie deficit. You're body will take a little while to adapt to using fat for energy instead of carbs. So the first 2 weeks can feel miserable. Give your body some time to adapt. A good idea is to plan your high carb days the day before a heavy lifting day, because this way you have stored glycogen available for your heavy lifts the next day. If you have no idea how many carbs to have on each day, try using a calorie calculator to find your maintenance macros and then add at least 50 grams of carbs to get the number for your high carb day. I'll include a calorie calculator in the description. Once you have your high carb number you should be able to figure out your low carb day. No carb day is obviously no carbs. After doing a carb cycling plan you may need to do some reverse dieting
The Ketogenic Diet And Insulin Resistance
We recently touched on how you can use the ketogenic diet to control symptoms of diabetes such as elevated glucose and triglycerides. In this article, we examine research showing the impact that the ketogenic diet has on levels of the hormone insulin, a key regulator of blood sugar in the body. What is Insulin’s Role in the Body? Before we look at the research, we need to know our main players. Insulin is a protein-based hormone produced by beta-cells located in the pancreas. The pancreas, which is located under the stomach, also produces enzymes that aid with digestion. Insulin’s primary purpose is to regulate the metabolism of fats and carbohydrates. The digestive system breaks down carbohydrates, such as sugars and starches, into a molecule called glucose. This compound can be used by cells to produce energy through a process called cellular respiration. Insulin allows cells in the body absorb glucose, ultimately lowering levels of glucose in the blood stream. After a meal is consumed, blood glucose levels increase and the pancreas responds by releasing insulin into the blood. Insulin assists fat, liver, and muscle cells absorb glucose from the blood, resulting in lower leve
Insulin Resistance - Physiological vs. Pathological Insulin Resistance - Physiological vs. Pathological This a must-read to really understand IR - especially for those living LC/HF. In the article, he links to this study of dolphins, also worth a look. It's amazing how may "studies" you can find even in respectable channels with headlines like "High Fat Diet Causes Insulin Resistance", which are apparently completely ignorant of this distinction ...
We saw last week with the Biggest Loser study that basal metabolism plummets when you lose weight with calorie reduction. As contestants lose weight, they burn a lot less energy – up to 800 calories per day less than before. Some of that is expected, since there is less body tissue to maintain, but nevertheless, these contestants burn far less than expected even taking this into account. Even 6 years later, their basal metabolic rate (BMR) rema ...
This is where the magic happens. Rat pups, fed a flaxseed oil-based ketogenic diet from weaning onward – note the drop-off in ketones after 2 weeks (Likhodii et al., 2002): Patient history: these rats have been “low carb” their whole lives. Side note: flaxseed oil is very ketogenic! (Likhodii et al., 2000): Flaxseed oil-based ketogenic diet produced higher ketones than 48h fasting; the same can’t be said for butter or lard. PUFAs in gener ...
I have been trying to find an answer to why my FBG levels have been increasing over the last couple of weeks. It is very frustrating and as a diabetic trying to reverse the disease it is scary (will this WOE work? Are the consequences of out of control diabetes, I am trying to escape, going to happen anyways?). I ran across a blog post that seems to describe what may be happening in my case. It is a possible phenomenon called Physiological Insul ...
One of the biggest reasons why people go Paleo is the metabolic benefits. Most people find Paleo to be very therapeutic for a whole cluster of carb-related problems: high blood sugar (or the rollercoaster of highs and lows), insulin resistance, and all the related issues. These issues can make weight loss difficult or impossible, but on the flip side, addressing them through diet can make it easier and more pleasant than you ever thought could ha ...
This past spring, after 18 months of great success on the keto diet, I tested my fasting blood sugar on my home glucose monitor for the first time in many months. The result shocked me. I had purchased the device, which also tests ketones, when I was diagnosed with pre-diabetes in the fall of 2015. As I embarked on low-carb keto eating, I tested my blood regularly. Soon my fasting blood sugar was once again in the healthy range. I was in optimal ...