A ketogenic or “keto” diet is high in fat, low in protein and low in carbohydrate. The diet promotes the metabolic formation of ketone bodies by causing the body to use fat (rather than carbohydrate) as its main energy source. The ketogenic diet forces the body to burn body fat rather than protein and carbohydrate because of low protein and carbohydrate intake. The enhanced fatty acid oxidation in the liver into ketone bodies has been shown to suppress appetite and enhance weight loss. Interest in the ketogenic diet has grown for weight loss and type 2 diabetes (JAMA, January 16, 2018). A very low-carbohydrate, high-fat ketogenic diet causes the body to switch from burning carbohydrates to burning fat.
MEDITERRANEAN, LOW-CARB
DIET BETTER FOR FAT LOSS
The most impressive low-carb study published to date in reference to health and body composition appeared in the journal Circulation in 2017. This diet study used magnetic resonance imaging (MRI) technology for the first time, measuring changes in body and organ fat during 18 months on a Mediterranean, low-carb diet. The Mediterranean, low-carb diet was significantly superior to a low-fat diet in decreasing fat storage, including visceral (deep abdominal) liver and heart fat. High visceral fat has been shown to increase metabolic syndrome, inflammation, cardiovascular disease and diabetes. A meta-analysis of 13 randomized controlled trials suggests that people on ketogenic diets tend to lose more weight than people on low-fat diets. In another 12-month weight-loss diet study, there was no significant difference found in weight change between a low-fat diet versus a low-carbohydrate diet (JAMA, February 20, 2018).
KETO DIETS HINDER EXERCISE PERFORMANCE
Unfortunately, ketogenic diets hinder exercise performance. New research from St. Louis University (Journal of Sports Medicine & Physical Fitness, April 2018) found that following low-carbohydrate, ketogenic diets impairs anaerobic exercise performance in exercise-trained men and women. Participants did not perform as well during anaerobic exercise in high-intensity, short-duration sports such as sprinting, weightlifting, etc.
Denne historien er fra January 2019-utgaven av Muscular Development.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent ? Logg på
Denne historien er fra January 2019-utgaven av Muscular Development.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent? Logg på
Best Cardio for Fat Loss - High Intensity vs. Low Intensity
Low-intensity cardiovascular exercise is the most common way to reduce body fat, despite mounting scientific evidence showing this form of cardiovascular training may not burn body fat as effectively as high-intensity cardio. In addition, low-intensity cardio has also been shown to inhibit muscle growth¹2, making the use of this approach to enhance your physique even more questionable.
Are Unilateral Exercises More Effective Than Bilateral Exercises?
Bilateral exercises simultaneously use both limbs to lift the weight, so that the resistance is being shared between each limb.
THE AMAZING POWER OF JULIA DI POMPEO
Pro Figure Champ and Pro Powerlifter!
BRYAN JONES: THE LORD OF CLASSIC RETURNS!
It seems like a decade has passed since the pandemic began in 2020. That was a chaotic year for all of us. MD sent me to Atlanta to cover the Chicago Pro, because restrictions in Illinois made it impossible to hold Tim Gardner's annual extravaganza there. The athletes still showed up in force to compete, and the Classic Physique division alone featured 30 men. When they came out to be adjudicated, one man stood out in a flash as the one to beat. I had never heard of Bryan Jones until that point aside from a vague recollection that he'd won the USA a couple of years before. With his braided and colored hair piled on top of his head in a gathered bun with the ends appearing to be some type of bizarre plant, I dubbed him \"The Kai Greene of Classic.\" That didn't stick, thankfully, because Bryan \"Lord\" Jones is a unique athlete in his own right. I knew I was looking at a man who was going to make waves in that division. A few months later he did just that, placing fifth in his first Olympia appearance. But we only saw him twice more after that, at the Arnold Classic and once again at the Olympia at the end of 2021. Since then, Jones has been working hard to build the additional size needed to successfully transition to the Open category. I spoke with him about his brief but notable time in Classic, and how he plans to make a big splash in Open.
Andrew vs. Hunter: THE BATTLE FOR TEXAS!
A BATTLE IS BREWING
GET A CLASSIC SUMMER PHYSIQUE WITH LOGAN FRANKLIN
Summer is in full swing, and for the vast majority of bodybuilders that don't compete, this is our showtime! All the many months of toiling away covered up while the sky was dark and gray and icy temperatures had you shivering have led to this. Last month we provided you with eight excellent tips to get ripped and ready, but let's take it a step further. This month, we enlisted the help of Classic Physique superstar and GAT Sport athlete Logan Franklin to come up with his best advice on how to make sure you have the most Classic-looking physique possible to show off on the beaches or at the pool. Here's what he has to say about the Classic look, areas of the physique to emphasize and how, and his best nutrition tips to make sure you turn plenty of heads this summer!
SUCCESS STORY: YANIV ZUR
BALANCING BUSINESS, FAMILY, AND ELITE FITNESS
HOW MUCH REST IS BEST?
Getting enough rest after weight training is essential for optimal muscle growth and performance. Unfortunately, many get insufficient rest because they simply disregard the fact that weightlifting breaks down muscle tissue, creating the requirement for adequate rest to fully recuperate.
Get Peeled With Extra Virgin Olive Oil
As you know, pathologic fat accretion results in obesity. The medical community and pharmaceutical industry have been struggling to address this burgeoning condition in the Western culture - particularly in the United States. Obviously, individuals have also been struggling in their attempts to avoid or correct unsightly or unhealthy fat gain. Imagine the shame these professionals and people must feel when they realize they may have been ignoring a risk-free, health-promoting, inexpensive dietary ingredient that can enhance fat loss. Bodybuilders seek potent drugs or supplements to force the metabolism to strip body fat to low single-digit percentages, but failing to acknowledge the foundation of diet can sabotage even their extreme measures.
CREATINE: THE BEST FORMS
New products and formulations are introduced to the supplement market every day. However, it is very rare for a product or especially an ingredient to create noteworthy evolution in supplement performance. Arguably, the greatest leap up this axiomatic evolutionary ladder occurred with the advent of creatine supplements in the 1990s. Creatine has proven over and over to be \"the real deal\" in clinical research and broscience. It's a muscle-building, performance-enhancing supplement that nearly all athletes should use.
