Fat metabolism is the most efficient way to produce energy, allowing you to go and go and go without burning through a ton of calories. But efficiency is the enemy of fat loss. To lose body fat, you want to churn through calories—calories from carbs, calories from fat, calories from anything—and you get there through carb metabolism. “The more energy-demanding the work, the more likely you are to lose body fat,” Zimmerman explains.
High blood sugar levels coupled with high blood ketones, on the other hand, will mean that you have a pathologically low level of insulin – something non-diabetics do not suffer from. This can lead to ketoacidosis – a potentially life-threatening condition. If this happens, you’ll need to inject more insulin; if you’re at all unsure of what to do, contact a medical professional. Coveting really high blood ketones for weight control is not worth the risk for type 1 diabetics.
But back it up just a tad.....I started following FWTFL after a post I read on Seersucker + Saddles. I followed for a while, like months and months. It's easy to make excuses not to do something when you're afraid to step out of your comfort zone. Well, April rolled around and I turned 38. I realized ANOTHER year had passed by and I still wasn't in the shape I wanted to be in, so it was time to think about my priorities. You see, my plan was to be "fit for 40" but at the rate I was going 40 would be here and everything would be the same. I knew we had a couple vacations planned for the early summer so as soon as those were out of the way, I pulled the trigger for the July 10th bootcamp. Since the beginning I was super psyched to learn and take in as much as I could. It didn't take long to start noticing changes in my mood and my energy, and even in the physical changes my body started having! The best part was the confidence that came with all that and the determination to keep at it. Its almost (no, very) addicting to get in good health with results to show for it! Once you get a taste of it you want to have more-more of those body changes and certainly more of that "I can actually really do this" feeling! I never thought I'd have the willpower to do all that Ive done these past 6 weeks.
The simple act of performing cardio is extremely catabolic, because of this MISS sessions should be kept to a moderate duration. While HIIT sessions should be 10-20 minutes, MISS sessions should be in the range of 20-35 minutes. Once sessions go beyond this duration the cumulative effect of muscle tissue breakdown starts to become a serious concern.
Weight loss occurs when the body is expending more energy in work and metabolism than it is absorbing from food or other nutrients. It will then use stored reserves from fat or muscle, gradually leading to weight loss. For athletes seeking to improve performance or to meet required weight classification for participation in a sport, it is not uncommon to seek additional weight loss even if they are already at their ideal body weight. Others may be driven to lose weight to achieve an appearance they consider more attractive. However, being underweight is associated with health risks such as difficulty fighting off infection, osteoporosis, decreased muscle strength, trouble regulating body temperature and even increased risk of death.
Carbohydrates are a touchy subject: while some blame them for all fat gain, it’s the type of carbs you eat that’s key. A 2011 study out of the University of Alabama found that a diet that slightly cut back on carbs, and which comprised mostly low-GI carbohydrates, lost more deep abdominal fat than those who ate a lower-fat diet. GI stands for glycemic index, a measure of how fast carbohydrates supply your body with energy: high-GI foods make you spike then crash, while low-GI foods provide a slow burn.
Have you ever decided to skip a meal to cut back on your daily calorie count? Despite saving a few calories in the moment, this strategy almost always backfires. When you skip breakfast, or any meal, you'll begin to experience excessive hunger that can lead to craving unhealthy foods—and lots of them. You may also eat faster than you normally do after skipping a meal, causing you to miss the warning signs that you're full and resulting in overeating.
Plus, a 2013 study from the University of California, Berkeley suggests that skipping sleep makes your brain's reward zone react to fatty and sugary treats way more enthusiastically. What's more, a study published in the Journal of Clinical Nutrition found that people who didn't get enough sleep ate an average of 385 extra calories that day. In short, more sleep = less calories in your mouth and less fat on your body.
The conclusion? Intermittent fasting was just as effective for weight loss as daily calorie restriction. So if you struggle with daily food restriction, fasting might be an easier way to dial back the amount you’re eating without feeling completely deprived. Read more in-depth about how intermittent fasting works (and if you’ll be able to stick to it) here.
Real talk: It could take weeks or months to see the metabolic effects of exercise on the scale, and even then, building muscle, which is denser than body fat, could lead to weight gain. "Do what you like because it’s good for you," Dr. Seltzer says, noting the way exercise is awesome for your heart, mental health, and more—and that not all measure of progress can be seen on the scale.
The notion that abdominal obesity is the most dangerous kind isn't new. Back in the 1940s, the French physician Jean Vague observed that some obese patients had normal blood chemistry, while some moderately overweight patients showed serious abnormalities that predisposed them to heart disease or diabetes. Almost always, the latter patients carried their fat around their middles. And, almost always, they were men.
Not only is fasted cardio not beneficial but it is actually detrimental to results. Fasted cardio may result in higher fat utilization but it also results in higher amino acid utilization which means more muscle tissue breakdown. As if that wasn’t enough, research has also proven that fasted cardio leads to far less total calories being expended per session. This means that there is simply less fat loss from fasted cardio when compared to cardio performed in a fed state. So make sure you get some food in your system before you head out to perform your cardio.