Is Dietary Ketosis Harmful To The Liver?
The mild dietary ketosis, such as that which is experienced during the Weight Loss phase of the Lean for Life program, is not harmful to individuals with a normal, healthy, functioning liver. Here is some information about ketosis that may help you to understand its role in weight loss: The carbohydrates you eat are converted to glucose, which is the body’s primary source of energy. Whenever your intake of carbohydrates is limited to a certain range, for a long enough period of time, you’ll reach a point where your body draws on its alternate energy system, fat stores, for fuel. This means your body burns fat and turns it into a source of fuel called ketones. (Ketones are produced whenever body fat is burned.) When you burn a larger amount of fat than is immediately needed for energy, the excess ketones are discarded in the urine. Being in ketosis means your body has burned a large amount of fat in response to the fact that it didn’t have sufficient glucose available for energy needs. Dietary ketosis is among the most misunderstood concepts in nutrition because it is often confused with ketoacidosis, which is a life-threatening condition most often associated with uncontrolled insulin-deficient Type 1 diabetes. In the Type 1 diabetic, the absence of insulin leads to a toxic build-up of blood glucose and an extreme break-down of fat and muscle tissue. This condition doesn’t occur in individuals who have even a small amount of insulin, whether from natural production or artificially administered. Dietary ketosis, however, is a natural adjustment to the body’s reduced intake of carbohydrates as the body shifts its primary source of energy from carbohydrates to stored fat. The presence of insulin keeps ketone production in check so that a mild, beneficial ketosis Continue reading >>
Keto: The Best Fatty Liver Diet
Fatty liver disease is exactly what the name suggests – a disease characterized by the build up of fat in the liver. There are two main types of fatty liver disease: Nonalcoholic fatty liver disease Alcoholic fatty liver disease (also called alcoholic steatohepatitis) Both types of fatty liver disease are diagnosed when fat makes up at least 10% of the liver, but the cause of the fat build up is different for each type. The cause of alcoholic fatty liver disease is obvious. The amount of alcohol it takes to cause fatty build up in the liver, however, is not so obvious. The Liver Foundation suggests consuming no more than 14 drinks a week for men and 7 drinks a week for women. Anything more than may cause fat to build up in the liver. The treatment for alcoholic fatty liver disease is simple enough — stop drinking alcohol. Studies confirm that cessation of alcohol consumption can reverse alcoholic fatty liver disease. However, the cause and treatment of nonalcoholic fatty liver disease are not as obvious. This is because many different factors (other than alcohol) can cause fat to build up in the liver. The Truth About Nonalcoholic Fatty Liver Disease Nonalcoholic fatty liver disease affects 20-30% of adult populations in developed countries, but the mechanisms underlying its cause are incompletely understood. We can, however, take some clues from other common diseases to figure out why this happens. In epidemiological studies including people with type 2 diabetes, 62 to 69% of them also had nonalcoholic fatty liver disease. Another study found that 50% of patients with dyslipidemia (abnormally elevated cholesterol levels) had nonalcoholic fatty liver disease. Obesity, metabolic syndrome, and heart disease are also closely linked with nonalcoholic fatty liver disease Continue reading >>
Sometimes While Working Out And Trying Hard To Hit Last Reps, I Feel A Taste Of Alcohol In My Mouth. Why Does This Happen?
My theory is that your body is burning fat while you are working out (that is part of the goal, no?) and you are tasting ketones/acetone. When our bodies metabolize fat, ketones (ketone bodies) develop and circulate in our bloodstream. This is a mild, usually harmless, condition called ketosis. Ketones spontaneously break down into acetone. Yes, the same acetone that is paint thinner, finger nail polish remover or adhesive remover/glue dissolver. The ketones and acetone have a very distintive taste and smell. To many people, the taste and smell are very similar to alcohol. So similar that people in ketoacidosis* have been arrested for public drunkeness, because their breath smelled like wine breath (also, ketoacidosis makes a person act drunk). [To me, ketones/acetone tastes like Elmer’s Glue when I was a kid.] *Ketoacidosis or Diabetic Ketoacidosis is a life-threatening condition in people whose bodies don’t make enough insulin to metabolize the glucose in their blood. Ketones and excess glucose make the blood too acidic and this hyperacidic blood can cause coma, liver and kidney damage and (if not treated) death. Continue reading >>
Is Ketosis Dangerous?
Duck Dodgers October 14, 2014 Peter, An article by Per Wikholm was published in this month’s LCHF Magasinet, where Per demonstrates that the Inuit could not have been in ketosis given that the scientific literature is abundantly clear, over and over again, that the Inuit consumed too much protein, and more importantly, Per debunks Stefansson’s claims for high fat with writing from his own books—Stef admitted in the pemmican recipes that Arctic caribou was too lean to make pemmican that supported ketosis. The most popular LCHF bloggers in Sweden, Andreas Eenfeldt/Diet Doctor and Annika Dahlquist have reluctantly agreed with Per’s findings—admitting that the Inuit were likely not ketogenic from their diet. I’ve put together a comprehensive review of the scientific literature regarding the Inuit, encompassing over two dozen studies, spanning 150 years, with references from explorers, including Stefansson. In the comments section of that post, Per gives a brief overview of how he was able to prove Stefansson’s observations on high fat intake were flawed. The post is a review of all the available literature that I could find (over two dozen studies). But, the literature certainly does not in any way support ketosis from the Inuit diet due to such high protein consumption. As Per (and Stefansson) points out, the caribou is too lean and as the many quotes show, the Inuit were saving their blubber and fat for the long dark Winter to power their oil lamps and heat their igloos. Again and again, we see that in the literature, as even Stefansson admits this. As far as glycogen is concerned, their glycogen intake is probably not worth scrutinizing given the well-documented high protein consumption in every published study. It really is besides the point. But, interest Continue reading >>
What Is A Ketogenic Diet?
Alright, here’s what the ketogenic diet (often referred to as “keto”) is and the basics of how to follow it. What is the ketogenic diet? For those who don’t know the ketogenic diet is a low-carb, high fat diet (LCHF) with many health benefits. It involves drastically reducing carbohydrate intake, and replacing it with fat. The reduction in carbs puts your body into a metabolic state called ketosis. When this happens, your body becomes incredibly efficient at burning fat for energy. It also turns fat into ketones in the liver, which can supply energy for the brain. Benefits: Ketogenic diets generally cause massive reductions in blood sugar and insulin levels. This, along with the increased level of ketones provide the numerous cited health benefits. Ketogenic benefits include: Fighting diabetes Epilepsy control Alzheimer’s disease Certain cancers Cognitive performance High blood pressure control Satiety Weight/fat loss Reduced cholesterol levels The most obvious and commonly cited benefits is the decreased insulin levels. This is why fasting becomes a great solution to people’s type 2 diabetes, cushing’s disease and many other metabolic diseases. Fasting as well as the ketogenic diet increases insulin sensitivity, improves insulin resistance and allows your body to use the hormone insulin more effectively (which is important for fat loss). There are also four different classifications of the ketogenic diet. The standard ketogenic diet is accepted as reducing your carbohydrates intake to 5% carbs, with just enough protein (20%, let’s say) and the rest coming from fats. Inflammation is the root cause of so many of our ailments, which lower insulin levels decrease. Energy use: The basic principle around ketogenic diets is that our bodies first port of call f Continue reading >>
If You Have Fasted For 24 Hours Will Eating A Ketogenic Diet Lower Your Rates Of Ketosis By Using The Proteins For Energy Instead Of Fat If You Are Not Keto-adapted?
One does NOT burn protein. Protein becomes amino acids which become glucose and it is glucose that competes with the burning of fat. All digested food including the amino acids from digested protein pass through the liver before reaching general circulation. Roughly half of them are metabolized in the liver and converted into glucose. Depending on how much is consumed this may be enough to break ketosis. (The commonly recommended 1.5 grams per kg of body mass is 120 grams for an 80 kg human. That alone becomes 60 grams of glucose which exceeds the commonly recommended 50 grams total when initiating ketosis. ) Even after a fast, one can break ketosis and this is why a ketogenic diet must not include macro levels of protein. For both the novice who might gain one pound of muscle per week and the pro who might plateau at one pound per month, one only needs 20–30 grams of protein beyond the RDA. For most that means 50–70 grams total. If one breaks ketosis and begins to require glucose the body will cannibalize muscle for those amino acids to convert into glucose. It is that damage which must be repaired after the next protein meal and which people try to prevent with still larger protein input. That just feeds the fire until one either saturates the small intestine’s ability to absorb protein (only a 15 gram serving for whey) or saturates the ability of muscle satellite cells to generate muscle nuclei to build new tissue. Better to build muscle slowly in ketosis and not be destroying it between meals. Continue reading >>
Why Is My Body Not Using Ketone Bodies All The Time?
There is no scientific evidence that ketones are a better source of energy than glucose for the brain. If that were the case, evolution would have lead to chronic ketosis. Your liver only produces ketones when carbohydrates are in short supply and fat is available. This is a physiologic system designed to deal with fasting or during periods when plant-based foods aren’t available in amounts needed to meet the brain’s needs. Ketones are also elevated in obesity and diabetes. Only certain regions of the brain can use ketones. They can supply up to 70% of the brain’s energy needs. You still need some glucose to fully fuel the brain. High levels of ketones may produce ketoacidosis, a dangerous condition sometimes seen in untreated diabetics. There are some situations where ketones may have a neuroprotective effect following brain damage. Ketones may also be useful for people having epilepsy. There aren’t any studies showing that these benefits extend to brains that haven’t been injured or stressed. You can get a fuller discussion here: Clinical review: Ketones and brain injury and here: The fat-fueled brain: unnatural or advantageous? and here: There don’t seem to be any studies showing that ketones improve mental performance in ordinary people. Judge for yourself. Continue reading >>