Low-carb Athletes Burn 2.3 Times More Fat Than Carb-loaders
A fascinating new study published in Metabolism: Clinical and Experimental may revolutionize our thoughts on sports nutrition. We’ve long understood how glycogen stored in the body and carbohydrates help fuel long distance training. This is why runners, cyclists, triathletes, and other endurance athletes focus on high-carb diets and carb-loading before their events and often before each workout. The study’s findings show that this may not only be unnecessary, but it actually limits the amount of fuel you can utilize from stored body fat. The study out of Ohio State University looked at the fat burning rates of ultra-marathoners and ironman triathletes that either ate a high carb diet (59% carbohydrates, 14% protein, 25% fat) or a low-carb ketogenic diet (10% carbohydrates, 19% protein, 70% fat). As I’ve mentioned before, don’t assume all the findings in athlete studies will apply to your workouts (especially athletes of this caliber), but it is interesting because it highlights previous findings that may be wrong: Humans are capable of burning far more body fat during a workout than we previously thought possible. It may take longer to adapt to a ketogenic diet than we thought. The low-carb athletes had normal glycogen levels before exercise, they utilized their glycogen at the exact same rate, and they even replenished spent glycogen the same as the high-carb athletes. We consider the “fat-burning zone” to be at a VO2 Max below 50 percent, but the highest rate of fat burning occurred at a VO2 Max of around 75 percent. What is ketosis? Low-carb diets are all the rage lately (which is good), but in case you’ve never heard the term ketosis, let me go over it quickly. People assume our body’s preferred source of fuel is carbohydrates because glucose is used Continue reading >>
How Much Fat Are You Suppose To Have A Day
The ketogenic diet is advertised as a low carb high-fat diet. But how much fat a day on keto should you actually consume? This article will tell you. There are many diet programs out there, recommending different amounts of fat consumption. The American Heart Association recommends limiting dietary fat intake to 20-35% of total daily calories. A high carb vegan diet may reduce it as low as 10%. A low carb ketogenic or paleo diet can go up to 60-80% of fat. So, the advice given ranges from low to high. But what is the minimum daily required fat intake “before stuff goes wrong”? Fat is an essential nutrient, unlike carbohydrates, that the body needs to repair cell membrane, regulate hormones and the metabolism. Your cells are literally made up of the fat molecules you eat. Dietary fat should contribute at least 15% of food energy (1). Any lower than that for an extended period will lead to hormonal malfunctioning and malnutrition of the cells, including the brain. What’s more, low fat intake makes you more hungry and mentally drained. High carb diets can lead to leptin resistance, which makes the body not receive signals of satiety and can cause overeating. So, whatever diet you choose to follow, your fat consumption should at least fall somewhere between 20-35%, which on a 2000 daily caloric intake would be around 40-80 grams. The ketogenic diet is a low carb high fat diet that reduces daily carbohydrate intake to <5-10%. Unlike fat and amino acids, carbs are not essential for survival and the body can live indefinitely without them. Instead of glucose, what gets burned for energy are fat and ketone bodies. The liver produces ketones when glycogen stores have been depleted and converts them into energy. A standard ketogenic diet by the book would look something lik Continue reading >>
Weight Loss And The Ketogenic Diet
It’s pretty obvious the well-known advice to “eat less, move more” for losing weight is not working for most people — if any. In fact, at least ⅔ of dieters who lose weight not only gain it back, but often do so with some extra weight. Yikes. So the question is, can there be a real solution to this problem? There just might be, and it’s a little-known process that more and more people are catching on to: ketosis for weight loss. Ketosis on a low-carb, ketogenic diet works because it helps suppress your appetite unlike other ways of eating. Not only that, it can also support increased focus and mental clarity. Imagine no longer obsessing about food or worrying about eating too much because your appetite is just… under control. No more counting calories! No more cravings. No more crazy amounts of exercise. Just satiety and a regulated appetite. Not only that, a ketogenic diet might even be able to help you lose weight faster than other methods — while keeping the weight off. If this idea appeals to you (and come on, how could it not?), you might be ready to try a ketogenic diet for weight loss. But you’re still left with some questions, so let’s cover all of the details you need to know to get started. Before you can use a ketogenic diet for weight loss, it’s a good idea to have an understanding of how it works. Here are some important points about the ketogenic diet: A ketogenic diet is centered around bringing the body into a state of ketosis. Ketosis is metabolic process in which the body burns fat for energy instead of its primary fuel, carbohydrates. When you drastically cut down on the amount of carbohydrates or calories you’re eating, and there aren’t enough carbohydrates from food to burn for energy, the body switches to the state of keto Continue reading >>
Is A Ketogenic Diet Really More Effective For Fat Loss?
The American Journal of Clinical Nutrition published a study last week to investigate claims that a ketogenic diet can facilitate greater fat loss than diets relatively higher in carbohydrate. Commonly known as “keto”, a ketogenic diet is a diet typically characterized by a 4:1 ratio of dietary fat to protein and carbohydrate and was originally used in the treatment of childhood epilepsy. It has been theorized that keto diets facilitate greater fat loss in humans as an absence of dietary carbohydrate forces the body to oxidize fat as its primary energy source. Taubes and colleagues set out to test this theory. Their study was conducted over eight weeks in a research facility known as a metabolic ward. Seventeen overweight or obese volunteers participated, with no opportunity to eat foods outside of the diets of the study. For the first four weeks, the subjects were fed a high-carbohydrate, high-sugar diet. Fifty percent of their total calories came from carbohydrate (338g per day), and 25% of their total calories came from sugar. The HCD diet totaled 2,739 calories per day. For the second four weeks, they were fed a very-low-carbohydrate, low-sugar ketogenic diet. Five percent of their total calories came from carbohydrate (36g per day), and 2% of their total calories came from sugar. 15% percent of the calories came from protein. The keto diet totaled 2,738 calories per day. Note that the caloric intakes were kept close to identical, meaning fat loss could only be attributed to the source of the food rather than its caloric content. The volunteers spent two days a week inside metabolic chambers, where their calorie expenditure was measured. Once every two weeks, their body composition was measured via a DEXA scan. The researchers also used doubly labeled water to m Continue reading >>
The Ketogenic Diet Might Burn 10 Times More Fat Than The Standard American Diet
Many people who follow the ketogenic diet (a.k.a. keto) are obsessed with its ability to help you lose weight quickly—and keep it off. Now, new research has found that the low-carb diet may have one especially huge perk going for it: It might burn 10 times more fat than other diets. That’s the major finding from research published in the journal Diabetes & Metabolic Syndrome: Clinical Research & Reviews. For the study, scientists took 30 adults who had been diagnosed with metabolic syndrome, a group of health conditions that increase the risk of developing heart disease, stroke, and diabetes. They then randomly put them in three groups: One group ate a ketogenic diet but didn’t exercise, another ate a standard American diet and didn’t exercise, and a third that ate a standard American diet and exercised for 30 minutes a day for up to five days a week. Here’s what they found: In 10 weeks, the group that was on the ketogenic diet had “significant” changes in their weight, body fat percentage, BMI, hemoglobin A1c (a test that measures a person’s blood sugar), and ketones (the result of your body burning fat for energy). Their resting metabolic rate, which is the rate that your body body burns energy when you’re not doing anything, was more than 10 times that of people who ate a standard diet. “All variables for the ketogenic group out-performed those of the exercise and non-exercise groups,” the researchers wrote in the study. (Learn how bone broth can help you lose weight with Women's Health's Bone Broth Diet.) See what happened when one woman tried the ketogenic diet: In case you’re not familiar with it, the keto diet is a high-fat, low-carb diet that encourages followers to get a moderate amount of protein. Carbs are generally replaced with fats, Continue reading >>
How Much Fat On A Ketogenic Diet?
Do calories matter? How much fat can I eat to lose weight on a ketogenic diet? These are just some of the many questions I focused on when writing this post. What's the Ideal Fat Intake on a Ketogenic Diet? As most of you know, ketogenic diets are high in fat, adequate in protein and low in carbohydrates. The aim of the ketogenic eating is to get your body into a state known as ketosis. Generally, the macronutrient ratio varies within the following ranges: • 60-75% of calories from fat (or even more), • 15-30% of calories from protein, and • 5-10% of calories from carbs. However, percentages are relative and don't say anything about the amount of calories you are eating. Percentages will give you an idea of the macronutrient composition of a diet. To determine the amount of calories, you have to look at absolute numbers - macronutrients in grams. So it's totally different to consume 4,000 kcal and 2,000 kcal on a ketogenic diet. Can I Eat less than 60% of Calories from Fat? Yes, you can. Since you only regulate your energy intake via fat when following a ketogenic diet (protein and carbs remain more or less constant), you may end up eating less than 60% of calories from fat, especially if you are trying to lose weight. This is perfectly fine. In his bestselling books and also in this video, Dr. Stephen Phinney explains the different phases of the ketogenic diet. Depending on your goal, your fat intake will vary in each phase and you will lose different amount of body fat. Weight loss slows down and it's completely natural - you will lose more weight at the beginning (water weight + accelerated fat loss) so don't get discouraged if your weight loss slows down as you get close to your target weight. Why You Need to Use a Keto Calculator Not everyone follows the keto Continue reading >>
Lose Weight By Achieving Optimal Ketosis
Do you want to lose weight? Here’s number 16 of my 18 best tips. All of the published tips can be found on the How to Lose Weight page. Before we get started, here’s a short recap of the tips so far: The first and most crucial piece of advice was to choose a low-carb diet. The next were eating when hungry, eating real food, eating only when hungry, measuring progress wisely, being persistent, avoiding fruit, beer and artificial sweeteners, review your medications, stressing less and sleeping more, eating less dairy and nut products, stocking up on vitamins and minerals, using intermittent fasting and finally, exercising smart. This is number sixteen: 16. Get into optimal ketosis Warning: Not recommended for type 1 diabetics, see below. We’ve now arrived at tip number 16. If you’re still having trouble losing weight, despite following the 15 pieces of advice listed above, it might be a good idea to bring out the heavy artillery: optimal ketosis. Many people stalling at weight plateaus while on a low carb diet have found optimal ketosis helpful. It’s what can melt the fat off once again. So how does this work? A quick run-through: The first tip was to eat low carb. This is because a low-carb diet lowers your levels of the fat-storing hormone insulin, allowing your fat deposits to shrink and release their stored energy. This tends to cause you to want to consume less calories than you expend – without hunger – and lose weight. Several of the tips mentioned above are about fine-tuning your diet to better this effect. Video course Do you know exactly how to eat a low-carb and high fat diet (LCHF)? This is required for ketosis. If not the easiest way is watching this high quality 11-minute video course on how to eat LCHF, and the most important things to think a Continue reading >>
What Is Ketosis? Hint: It Can Help You Burn Fat & Suppress Your Appetite
We’ve longed been told that calorie restriction, increasing exercise and reducing dietary fat intake are the keys to weight loss. But, if you’ve ever attempted to control your weight by subsisting on fewer calories — especially from mostly bland “diet foods”— you’re already probably aware that this typically produces minimal results and is extremely hard to stick with long-term or consistently. Considering the high rates of obesity now facing most developed nations — along with an increased risk for health conditions like diabetes or heart problems as a result — researchers have been anxiously working on how to suppress appetite and achieve weight loss in a healthy, sustainable manner. The keto diet has emerged over the past several decades as one potential answer to this large-scale weight loss problem. (1) While there are some differences in opinion, depending on who you ask, regarding the best approach to very low-carb dieting, studies consistently show that the ketogenic diet (also called the keto diet) produces not only substantial weight loss for a high percentage of people who adhere to it, but also other important health benefits such as reductions in seizures, markers of diabetes and more. The keto diet revolves around eating foods that are high in natural fats, consuming only moderate protein and severely restricting the number of carbs eaten each day. Even if you don’t have much weight to lose, entering into a state of ketosis can be helpful for other reasons — such as for improved energy levels, mental capabilities and mood stabilization. What Is Ketosis? Ketosis is the result of following the ketogenic diet, which is why it’s also sometimes called “the ketosis diet.” Ketosis takes place when glucose from carbohydrate foods (like Continue reading >>
Is It Necessary To Include High Fat Intake In A Ketosis Diet, Or Is It Just A Convenience, Because Isn’t The Idea To Burn One’s Body Fat To Make Up For The Lesser Caloric Intake?
Hi, It is actually necessary to include more healthy fat in your diet if you want to follow keto diet. It is one of the major differences between low-carb diet and ketogenic diet. (low-carb diet does not emphasize on eating more fat while ketogenic diet does) Ketogenic diet is a diet that is high in fat, adequate in protein and low in carbohydrates. Generally, the macronutrient ratio varies within the following ranges: 60-75% of calories from fat (or even more), 15-30% of calories from protein, and 5-10% of calories from carbs. In other words, the fat-protein-carbs ratio should be around 7:2:1. You can include more healthy fat by eating more: Coconut oil Olive oil Avocado Organic butter Nuts (Almonds, Walnuts, Cashews…) Seeds (Flaxseeds, Chia seeds…) Cheese If you want to learn more about Keto diet, you can read my blog post where I listed all useful resources of ketogenic diet. Here’s the link: I would suggest that you watch all those videos to better understand how human body works when following a keto diet, and get a well-rated cookbook to get started. Continue reading >>
Keto Diet Science: How Your Body Burns Fat
By now, you’ve probably heard about the keto diet. You've probably heard that it all but bans carbs and sugars, or that it's been clinically shown to reduce epileptic seizures in kids, or even that it helps people condition their bodies to burn fat. As we detailed in our recent feature on the keto diet, all of those things are true. But as any bodybuilder knows, you don't need to be on the keto diet to burn fat. Heck, you can do it with a focused meal and exercise plan. So we've been wondering: When your body "burns fat" for energy, what's really going on there? How exactly does the keto diet work? And why the hell is it called the "keto" diet, anyway? Play Video Play Loaded: 0% Progress: 0% Remaining Time -0:00 This is a modal window. Foreground --- White Black Red Green Blue Yellow Magenta Cyan --- Opaque Semi-Opaque Background --- White Black Red Green Blue Yellow Magenta Cyan --- Opaque Semi-Transparent Transparent Window --- White Black Red Green Blue Yellow Magenta Cyan --- Opaque Semi-Transparent Transparent Font Size 50% 75% 100% 125% 150% 175% 200% 300% 400% Text Edge Style None Raised Depressed Uniform Dropshadow Font Family Default Monospace Serif Proportional Serif Monospace Sans-Serif Proportional Sans-Serif Casual Script Small Caps Defaults Done Well strap some protective boxing headgear over those thinking caps, bros, because we’re about to roundhouse kick you in the brain with some KNOWLEDGE. (For a detailed breakdown of the chemistry at work, be sure to check out our references: this explainer on ketone bodies from the University of Waterloo, and this ketosis explainer from Rose-Hulman Institute of Technology [PDF], plus our feature on the keto diet from the July/August issue of Men's Fitness.) Why does the body go into fat-burning mode? For most pe Continue reading >>
Here's Exactly How I Lost 50 Pounds Doing The Keto Diet
Of all the places to seek life-changing nutrition advice, I never thought the barber shop would be where I found it. But one day last January, after a couple years of saying to myself, "today's the day I make a change," my barber schooled me on something called keto. Normally, I take things he says with a grain of salt unless they're about hair or owning a business, but this guy could literally be on the cover of Men's Health. He's 6 feet tall, conventionally attractive, and his arms are about five pull-ups away from tearing through his t-shirt. If anyone else had implied that I was looking rough, I would've walked out in a fit of rage, but I decided to hear him out. I should clarify that I was out of shape, but my case wasn't that severe. I hadn't exercised in a few years and basically ate whatever I wanted and however much of it, but I was only about 30 to 40 pounds overweight. My barber went on to explain that this diet, paired with an appropriate exercise routine, allowed him to completely transform his body in less than a year, and all he ate was fatty foods. Once he showed me his "before" picture, I was sold. It was time to actually make a change. Short for ketogenic, keto is a high-fat, moderate protein, low-carb diet that forces your metabolism into what's called a state of ketosis. There's a much more scientific explanation to that, but it basically means that instead of burning carbohydrates (mainly glucose, or sugars), your body switches to burning fat as a primary source for energy. Keto isn't necessarily about counting calories, though the basic idea of eating less in order to lose weight still applies. This is more of a calculated way to rewire your metabolism so that it burns fat more efficiently over time, using very specific levels of each macronutrient Continue reading >>
Will Taking Exogenous Ketones Stop Fat Loss?
Would you like to lose some fat? A ketogenic diet is a pretty good tool to help you reach your goal. You can use exogenous ketones which have been a popular way to help get people into ketosis and comply with the transition from eating carbs to eating fats. Once in ketosis, use real food to stay there. Sounds easy, right? Unfortunately, some bro science complicating this topic has been surfacing which must be quashed. People are claiming that exogenous ketones are stopping the fat burning that people are seeking. The same exogenous ketones that help a lot of people experience ketosis and make getting into and staying in ketosis much easier, which makes the fat loss so much easier. SAD! This is how the logic follows from people who don’t really understand physics but like to quote laws of physics to sound fancy like they know how the human body works: Exogenous ketones contain energy. Body fat is stored energy. Therefore, if you consume any energy, you can’t use any stored energy. That’s not really how the body works. At all. By that same rationale, if you were to eat any dietary fat (or any food), then you wouldn’t be able to burn any fat. Unless every single person who has ever lost fat has only done so by doing a water fast, I think this argument and concern is pretty invalid. So before we get further: NO, exogenous ketones do not stop fat burning. Fat loss and fat gain are a little more complicated than people think. I personally don’t believe in the strict calorie in, calorie out model that some people who misunderstand conservation of energy do. Your body is not a bomb calorimeter, so stop telling me that you need to intake a deficit of x amount of calories for y amount of fat loss, people who clearly don’t understand physics (or the human endocrine sys Continue reading >>
Is A Low-carb Diet Effective For Burning Fat? Is Ketosis Dangerous?
“The future is already here – it’s just not evenly distributed.” ~William Gibson One hundred years from now, medical doctors, scientists, nutritionists, and the general public will be puzzled and astounded by how few of us were able to grasp the obvious – high-carb, low-fat diets simply do not achieve long-term fat loss. Athletes, bodybuilders, Hollywood and others have known for decades that a low-carb, high-protein diet achieves incredible fat metabolism and enables rapid muscle gains. Hundreds of scientific studies have – again and again – proven the same. Special interests have ridiculed and disparaged these approaches and prevented most of this knowledge, however, from being incorporated into conventional wisdom. While some diets do follow effective fat loss principles, many take them to extremes (Atkins, Dukan, the Ketogenic Diet, etc.), advocating weight loss at any cost. Avoiding fruits and vegetables while encouraging hot dogs and bacon binges – while it might actually help you lose weight in the short term – is not a healthy or sustainable strategy. The LeanBody System is unlike these diets in that you will achieve fat loss and muscle gains as a direct result of improving your overall health, not sacrificing it. So How Do Low-Carb Diets Work? Extreme low-carb diets push the body into ketosis, which means that the body primarily burns fat (instead of carbs) for energy and levels of ketones in the blood are elevated. Ketones are small carbon fragments created by the breakdown of fat stores after the body is depleted of stored glucose (known as glycogen). Humans can use ketones as energy for bodily functions and even as a replacement for glucose to provide fuel to the brain. Since the body relies on stored fat for energy, people lose weight – Continue reading >>
Can Eating Fat Help You Lose Weight? Let’s Look At The Ketogenic Diet.
Fat makes your meals more palatable and helps you feel full, so it’s no wonder the high-fat ketogenic diet is increasing in popularity. The diet has been trending for the past three years, as “keto” blogs and cookbooks continue to pop up and build an impressive fan base. This diet has been used under close supervision by physicians and dietitians since the 1920s for treating epilepsy and has shown promise in managing brain cancer. But is it useful and healthy as a strategy for weight loss? First, the basics: On the ketogenic diet, at least 70 percent of your daily calories come from fat. Five to 10 percent of your calories come from carbohydrates (20 to 50 grams a day). The rest, up to 25 percent of your daily energy, comes from protein. By contrast, the healthy diet recommended by the Institute of Medicine is 45 to 65 percent carbs, 20 to 35 percent fat and 10 to 35 percent protein. The ketogenic diet’s low-carb target can be met only by avoiding grains, dairy products, fruit, and legumes such as chickpeas and lentils. Starchy vegetables such as sweet potatoes and squash are out, and even amounts of lower-carb vegetables are limited. So what’s left to eat? Typically, eggs cooked in butter for breakfast; for lunch and dinner, meat, chicken or fish with salad or green vegetables and plenty of oily dressing. Sorry folks, no alcohol on this diet. Even red wine is out. The ketogenic diet gets its name from a process called ketosis. Ketosis happens when your body doesn’t have enough energy from glucose (carbohydrates), so it adapts by using stored fat for energy. The result? Weight loss. Does the ketogenic diet lead to faster or more sustainable weight loss than other diets? The research to date suggests that initial weight loss on the keto diet is impressive but Continue reading >>
The Beginners Guide To Ketosis: Investigating Low-carb, High-fat Eating
The only hard and fast rule of health is that health is personal and what works well for one person may not work for someone else. Aside from that rule, there are “frameworks” that seem to benefit large groups of people. One more level down from that are alternative strategies that benefit smaller groups. Ketosis is likely one of those alternative strategies that works well for certain, smaller groups of people. So, right off the bat I want you to understand that Ketosis might not be for everyone. I’m going to lay out the case for potential benefits of Ketosis. If it sounds interesting and beneficial to you, then consider trying it. (see our free cheat sheet to help you). What is Ketosis Ketosis occurs when liver glycogen gets depleted and the body burns fatty acids for fuel. The primary driver of this state is a very low carbohydrate intake. Often, it also requires a low protein, higher fat intake. You can also achieve a state of ketosis by not eating altogether. The creation of ketones is a byproduct of this metabolic state. Ketones are a source of fuel, just as glucose is a source of fuel. Ketones tend to have some added benefits, though. What role does Ketosis play in human health? Ketosis allows our bodies to function in the absence of carbohydrates, both physically and mentally. Instead of burning carbohydrates, or converting protein to glucose, the body burns ketones. This is pretty much a survival mechanism. It allows your body to function in a state of caloric deprivation. This is why ketosis often gets bad press (as it’s linked to “starvation”). Being a survival mechanism doesn’t make it invalid as a strategy, though. There can still be potential benefits to be had. Let’s cover a few of them… Ketosis and Accelerated Fat Loss Being in ketosis Continue reading >>