2. Eat smaller meals more frequently: “Insulin is probably the single most important factor that contributes to fat storage,” Seedman explains. This hormone is activated when you eat and responsible for shuttling nutrients into cells, either fat or muscle. A quick biology lesson: Every time you eat a meal, your blood glucose spikes, and when this goes up, so do your insulin levels. More calories at once means a larger spike in both. When these levels are sky high, it signals to your body to put nutrients into fat cells instead of muscle, causing an accumulation of fat, Seedman explains. The same thing happens when your insulin stays elevated for a prolonged period of time, which is why it’s important to let yourself become hungry before eating again, he adds. Aim for five to six meals throughout the day.
One area of confusion of regarding nighttime eating involves the consumption of carbs. Many people are under the assumption that eating carbs at night will cause them to be stored as fat since they will not be used. This is simply not true. Carbohydrates are obviously not necessary before bed from a performance standpoint but their consumption late at night will not translate into fat gain.
The major problem with this excess fat is that the fat cells, called adipocytes, do not function normally. They store energy at an abnormally high rate and release energy at an abnormally slow rate. What’s more, these extra and enlarged fat cells produce abnormal amounts of different hormones. These hormones increase inflammation, slow down metabolism, and contribute to disease. This complicated pathological process of excess fat and dysfunction is called adiposopathy, and it makes the treatment of obesity very difficult.
I am 56 years old. For the past several years I have put everyone in my family needs before my own. I work 2 jobs and have very few days off. I am overweight, always tired and have lots of pain. I have tried about every diet out there without any long term success. 7 weeks ago, a friend told me about this program. I deduced to make an investment in myself. I can't believe the amazing results. Almost immediately I had more energy, had better more restful sleep and my appetite has been reset. I now know when I am actually hungry. This plan of carbon cycling, intermittent fasting and workouts are so effective. I lost 14.2 pounds and 17.25 inches. But I gained a new appreciation of myself and that is totally worth the investment. This is not a fad diet for me...it is my new and improved way of life. Thanks Amanda for giving me my life back.

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.
Your body needs a certain amount of essential vitamins and minerals to function properly. What happens when you don’t get enough of them? What happens when you eat too little food, or when the food you eat isn’t sufficiently nutritious? Perhaps our bodies catch on and reply by increasing hunger levels. After all – if we eat more, we increase the chances of consuming enough of whatever nutrient we are lacking.
I am the woman who has struggled with weight since College. I am the woman who has never felt comfortable in a pair of jeans. I am the woman who gained 20 pounds my first year of marriage. After seeing pictures of our first Christmas together I decided to join a gym and eat low carb. I lost the 20 pounds and then got pregnant with our first little boy. I am the woman who gained 58 pounds during BOTH of my pregnancies. I am the woman who struggled through fad diets, running, starving myself and never seeing any benefit from it. In January, my family moved from South Carolina to Knoxville, TN. We left our support system, our church, our friends, and our family. My second little boys first birthday was quickly approaching and I had not lost but 10 pounds of baby weight. I was tired, lonely, and well.....depressed. I followed Amanda on Instagram for at least a year thinking how amazing she was, but, I could never look like that, Right? WRONG! After my little boy turned 1 in April, I took the plunge and signed up for my first round of FWTFL. I was determined to do whatever I needed to do to be healthy for my boys, my husband, and for myself! I did sprints with the stroller parked under trees, I planned workouts during nap time, I preplanned my macros and my meals. Honestly - It was the EASIEST program I had ever been a part of! I learned so much about myself. I am a STRONG momma. I am a HAPPY momma! But, most of all, I am a HEALTHY momma! I have lost a total of 30 pounds and 35.2 inches! I have learned so much about my body and health, and I can't wait to see how far I go! I LOVE the FWTFL lifestyle!
Cortisone as an oral drug is another common culprit (e.g. Prednisolone). Cortisone often causes weight gain in the long run, especially at higher doses (e.g. more than 5 mg Prednisolone per day). Unfortunately, cortisone is often an essential medication for those who are prescribed it, but the dose should be adjusted frequently so you don’t take more than you need. Asthma inhalers and other local cortisone treatments, like creams or nose sprays, hardly affect weight.
Skimp on fluids, and your body will release an antidiuretic hormone that leads to water retention that could affect the scale, Dr. Setlzer says. While this sneaky effect is one reason why the scale is a poor measure of body mass loss, you can outsmart it by drinking more—particularly if you fill your glass with water or non-calorie alternatives like unsweetened coffee and tea.
Stress may contribute to abdominal fat, according to several studies, including a recent one at the University of California, San Francisco. "When you're stressed, hormones like cortisol stimulate your appetite, slow your metabolism down and encourage fat storage inside your abdomen," explains Shawn Talbott, Ph.D., director of the Nutrition Clinic at the University of Utah. So what's a frazzled girl to do? "Find an activity that reduces stress for you, whether it's listening to soothing music or taking yoga, and do it daily," advises Talbott.
Following two successful spinal surgeries in the last twelve months I have struggled with not only residual back pain but pain throughout my body. I was not sleeping through the night partially due to pain. Pain dictated nearly every choice I made every day. Although I was successfully managing my weight according to 'the charts', I had no energy, no vitality, no strength, and no vigor. I needed help. I am so thankful to have stumbled onto FASTerWayToFatLoss because everything has changed in 7 determined and disciplined weeks. This program has educated me on nutritional choices. I now use the right foods to fuel my body at the right times. Within five days of changing what I eat I was running sprints. I am now lifting weights, running, sleeping through the night. I am no longer a slave to pain as most of it is GONE. What remains I am successfully managing.
We call it a beer gut for a reason: Your body tends to prioritize getting rid of any alcohol in your system, so it targets those calories first, which may impede fat burning, explains Hultin. Alcohol also tends to be higher in calories (7 per gram), and its inhibition-dissolving tendencies may lead you to overeat. Lose the booze, and you’ll likely lose more weight, too.
Açai berry powder is high in anthrocyanin- a natural pigment providing powerful antioxidants. Açai provides an array of minerals that help to keep your body healthy and gives you high levels of sustainable energy. This extra energy will enable you to get out and exercise more, therefore extra calories will be burned and eventually the fat will come off your tummy!
Protein. Deciding how much protein to eat at each meal is simple. Take the total protein you are supposed to consume during the day and divide it evenly among the essential eating times. Let’s say, for example, you are supposed to be eating 200 grams of protein per day. Since there 5 essential eating times you just need to divide 200 by 5. This means that you will need to take in 40 grams of protein at each meal.
Nitric oxide is the compound that opens everything up, and, not surprisingly, it's one of the best fat-burning products on the market. NO supports "the pump" when taken before training, enhancing blood flow to muscles by allowing more blood to make its way to tissues, including muscles, which can help maximize hypertrophy and boost metabolism. This arginine-based supplement is also effective when taken before bed, when it can exert a profound surge in GH levels and support fat-burning.

I have taken control of my body through educated food choices and a fitness program that has changed my body. In seven weeks I have dropped two clothing sizes. I am especially pleased with the loss of fat from my belly and my back. My arms and shoulders are becoming sculpted. While I have lost 10" throughout my body measurements I have gained control of my health. While these quick results have been very rewarding and satisfying what I have learned over these few weeks is invaluable and I will be implementing the principles for the long haul.


1. Bicycle Crunches are a great ab exercise and work the abs from every angle. It’s a combination of the regular crunch, a side-to-side motion that hits the oblique muscles and a reverse crunch that targets the lower abs. You can change the difficulty level by increasing or decreasing the range of motion used and the speed of movement as well as the intensity of the crunch by holding and squeezing.
Protein. Deciding how much protein to eat at each meal is simple. Take the total protein you are supposed to consume during the day and divide it evenly among the essential eating times. Let’s say, for example, you are supposed to be eating 200 grams of protein per day. Since there 5 essential eating times you just need to divide 200 by 5. This means that you will need to take in 40 grams of protein at each meal.
No question about it, burning fat is a 24/7 endeavor. To keep the fires hot, you need to eat every 2-3 hours throughout the day. Not only that, but you must choose the right foods in the right amounts to keep your metabolism revved up so your six pack will be ready for its close-up. The way we see it, there are 12 fundamentals—laws, if you will—that are all you need to shed that unwanted blubber from your midsection and elsewhere. Most of them are nutrition-driven, but training comes into play as well. Your mass-gaining phase is over for the time being; now it's time to get lean. These 12 laws of fat-burning will help get you there.
Continuing weight loss may deteriorate into wasting, a vaguely defined condition called cachexia.[31] Cachexia differs from starvation in part because it involves a systemic inflammatory response.[31] It is associated with poorer outcomes.[26][31][32] In the advanced stages of progressive disease, metabolism can change so that they lose weight even when they are getting what is normally regarded as adequate nutrition and the body cannot compensate. This leads to a condition called anorexia cachexia syndrome (ACS) and additional nutrition or supplementation is unlikely to help.[28] Symptoms of weight loss from ACS include severe weight loss from muscle rather than body fat, loss of appetite and feeling full after eating small amounts, nausea, anemia, weakness and fatigue.[28]

I accepted the fact that I wasn't going anywhere with my over excessive workouts and lack of nutrition, and the stubborn fat deposits forming on my tummy and hips that weren't going anywhere no matter what I did. I was finally coming to the conclusion that at 53, going through menopause that I could no longer count on the genetics given to me would sustain my body anymore. It was time to get serious and figure out what in the world to do about it. That's when a forever friend Lisa Cole changed my life by introducing me to the fasterwaytofatloss program. Her results were incredible! She was fit, happy and in control of a sustainable fitness/ nutrition program and I wanted in. It was just what I was looking for. I signed up and her sister Jennifer Morgan was also just starting the program. Jen and I have been forever friends since 1st grade! ❤️ Her results were also Amazing and all she kept saying was "I am Soooo happy!"
The sugar contained in fruit is called fructose. Many people have come to believe that fructose is bad for you and will promote fat gain. This is simply not true. Fructose metabolizes differently than other types of sugar but it is still a great choice for carbohydrates. Fructose will restore liver glycogen levels quickly and muscle glycogen stores slowly. Although fructose is technically a sugar it does not cause a spike in blood sugar like many other sugars. This makes fruit and excellent choice for daily consumption.
Being in optimal ketosis for a prolonged period of time (say, a month) will ensure that you experience the maximal hormonal effect from eating a low-carb diet. If this doesn’t result in noticeable weight loss, you can be certain that too many carbs are NOT part of your weight issue and not the obstacle to your weight loss. There are, in fact, other causes of obesity and being overweight. The next three tips in this series might help you.

Soup -- we're talking broth-based, not creamy -- has a lot going for it. It's full of water, which fills you up with the fewest possible calories. It's hot, which prevents you from eating too much. Have it before a meal, and soup can take up space that might have gone to higher-calorie foods. You can also make a satisfying, low-calorie meal out of soup alone by adding chicken, fish, cut-up vegetables, or beans.
It is best to eat a strict Bulletproof Diet for at least a week or two beforehand to store extra nutrients. This also helps reset your hormonal status if you’ve been yo-yo dieting. You don’t have to do this, but it’s a good idea. You may find that eating The Bulletproof Diet is enough of a stimulus for weight loss, and that fasting is unnecessary. You also need to get used to digesting fat if you’ve been on a low-fat diet.
Carbs are always perceived as the enemy, but they too have a significant role in fat loss. The body needs glucose to work, and to a certain level, your brain requires it to think and function optimally. Some will argue that technically we don't need carbs, but many of your body's basic functions will decrease in performance without the right amount of carbs at the right times.

Do you even lift, bro? If you’re serious about getting rid of that belly fat fast, resistance training might just be the key. A study from the Harvard School of Public Health found that adding weight training to adult male test subjects’ workouts significantly reduced their risk of abdominal obesity over a multi-year study period, although doing the same amount of cardio had no such effect. Research from the University of Maryland even found that just 16 weeks of weight training boosted study participants’ metabolic rates by a whopping 7.7 percent, making it easier to ditch those extra inches around your middle.

Other Exercises – Ab exercises will also help reduce belly fat and help you keep that tummy tone as you lose the weight. We are a huge fan of core and ab exercises here at Lose Weight by Eating, and consider them the best exercise to lose belly fat. Not only to they help you tone up fast, they also strengthen your back, fix your posture (which makes you look thinner!) and help you lose belly fat!
Have Protein at Every Meal and Snack. Adding a source of lean or low-fat protein to each meal and snack will help keep you feeling full longer so you're less likely to overeat. Try low-fat yogurt, small portion of nuts, peanut butter, eggs, beans, or lean meats. Experts also recommend eating small, frequent meals and snacks (every 3-4 hours), to keep your blood sugar levels steady and to avoid overindulging.
"Your body needs a healthy balance of exercise and rest. Doing too much prevents the body from shifting excess fat. Exercising without rest can impact our levels of the steroid hormone cortisol and cause an increase of stubborn fat stored in the belly. Not allowing your body to recover can increase the risk of injury too, so make sure you factor in rest days to your plan."
I have recently gone through a couple of years of health struggles. Ranging from two broken feet at once to ovary/uterus issues that landed me in the hospital several times and ultimately resulted in a major surgery. Those times lead to some difficulties and struggles since I was ordered to be in a bed for long periods of time. I found myself struggling with depression. Something I had never experienced before and if I'm honest, was completely devastating. It was hard to see the light at the end of the tunnel after struggling for so long. Those were some dark times. I tried many things to pull myself out of fog I was in without little to no success.
All of this is important to understand because while the basics of changing your body composition are simple –energy balance– each person’s personal psychology and physiology will differ. Someone who’s never exercised before and has a lot of fat to lose will have different physiological and psychological requirements than someone who stopped training for a while and gained some body fat in the interim; conversely, a lean beginner is going to be in a different place than an overweight beginner.
At weigh-in this morning, I had to check twice... I lost 19.4lbs, and 18.5 inches. I gained confidence and a clear mind. I am so motivated to keep going with this completely sustainable lifestyle, I seriously feel better than I ever have in my adult life. Thank you Amanda for this program. Thank you for introducing me to the women in our group, and to this way of life.

I started this journey because I was missing something. I've worked out for years, ran half marathons and tried all kids of programs to help me lose weight and keep it off. I wanted life long, optimal health. Amanda's program has given me that missing piece. IF has been wonderful and when i started I was skeptical. Not only have i reached a weight i haven't been in 27 years, i have lost 6" overall in just 6 weeks. I've gained strength, increased my speed on my runs and have gained confidence in myself and how to fuel my body for my activity levels. Getting macros is so important and even more important that I have personal integrity in what i put in my mouth and how i take care of the only body i will ever have. So #grateful for this life style FasterWaytoFatLoss!
Digestive metabolism, or thermic effect of food (TEF): Simply digesting food—turning carbs into sugar and turning protein into amino acids—typically burns 10 to 15 percent of your daily calories. Digesting protein burns more calories than digesting carbohydrates or fat—about 25 calories for every 100 consumed. Digesting carbohydrates and fat burns about 10 to 15 calories for every 100 consumed.

Before you even get started on a fat loss plan the first thing you want to do is to set goals for yourself. This goal could be to lose 30 lbs. or it could be to see your abs. Whether your goal is to lose a certain number of pounds or to just achieve a certain look you will need to set a reasonable time frame to achieve this. If you do not set a time frame there will be no sense of urgency when trying to make progress.
Foods that are rich in water take up more room in your gut. This signals the body that you've had enough to eat and leaves less room for other foods. Many raw fruits and vegetables are full of water and nutrients and low in calories. Watermelon is a great example. It's a good source of the antioxidant lycopene and gives you some vitamin A and C, too.
Our journey started years ago when life decided to throw us into emotional turmoil. As a couple, we desired and longed to have children. Our hopes were shattered when we found out the little girl that we had prayed for had a terminal disease that was not compatible with life. We lost our little girl on Thanksgiving Day. We both began to lose site of our physical health as we were in survival mode. Emotional eating took over. A couple of years after we lost our daughter, my father in law committed suicide which again sent our family into a spiral of unhealthy choices as we were trying to cope with tremendous loss. Our physical health was of no importance as we were trying to heal emotionally. We were consumed by many unhealthy habits that temporarily made us feel better. Fast forward a couple of more years, and I was diagnosed with an extremely rare tumor in my low back. After my first surgery, the tumor returned aggressively within 3 months and my treatment options were small. At this time we realized that our health is nothing to take for granted. We had 2 small children that needed healthy parents. After years of abusing our bodies with unhealthy foods and lack of exercise, we decided to get serious about our health. Shawn worked out and I struggled to find a program that would actually work. Shawn was not a "program" type of guy but I needed structure and something to follow. I had tried so many things and nothing seemed to work. I was struggling with chronic pain and I seemed to never be able to complete anything because my body wasn't allowing it. I found the FWTFL program on a blog and started researching. The premise made sense to me, but I still needed direction. Shawn bought the first round for my Mother's Day gift and I knew this was my last hope. I was amazed that within the first 3 weeks, the pain in my low back and hip was so much better. My body was allowing me to work hard and I was getting stronger. I think the progressive workouts combined with whole food nutrition was key. My body was responding well. I wanted to continue because I knew it would only get better! After the first 6 weeks, I was a changed person. Emotionally, I felt amazing....for the first time in years. I felt confident and I could see awesome physical changes. I signed up for the second round and this is where Shawn entered the picture. He was so impressed with the changes I saw in the first round that he wanted to give the Men's Group a shot. I think for us, we wanted the physical changes in our appearance but it became so much more. My body was actually healing from the chronic pain and THAT was the selling point for Shawn. Because I am still battling this tumor, I have MRI's every 4 months. My last scan showed that what I was feeling was real. I have been battling bursitis in both hips for years. My last scan show this was totally gone. That is a huge win. This program not only gives you results physically but it allows your body to be as healthy as it can possibly be! Shawn was impressed and decided it was time for him to take control of his health as well. Together, we endured the loss of our baby, the loss of a father and we have battled for my health. Together, we ate clean, never missed a workout and pushed each other to be the best, healthiest we could possibly be. Together, we will continue to make healthy choices and live a life that will push others to do the same. We are both thankful for the knowledge that Amanda shared with us. It has given us the ability to take control of our emotional and physical health. We are two grateful people that share a passion for life and we do not take our health or each other for granted! We appreciate this opportunity!
Who wrote this no Arthur or Scientific Studys shown. Just a bunch of bro science. Fasted cardio is fine if your doing Low Intensity Steady State Cardio. If your using l-carnitine to transport fat and other fat burners they will be more effective on empty stomach. Ya if your doing HIIT cardio on empty stomach it needs quick energy which will pull aminos instead fat which take longer to get.
I joined the August FWTFL group knowing that I was ready, both mentally and emotionally, to make some big changes. Two small kids, a full-time business, and just life in general have been so busy for the past several years that I have not consistently made the time to prioritize my own fitness and health. I knew I needed structure and accountability, but also the freedom to LIVE life and enjoy the things that are important to me (such as a glass of wine on occasion, dinners out at restaurants with the family, and fun social events) without constantly feeling deprived. I’ve tried those other exercise and food plans and just could never make them “stick” long-term because they did not fit my life.  
"Anytime you’re stressed, you probably go for food," Dr. Seltzer says. (Have we met?!) That’s because cortisol, the stress hormone, stokes your appetite for sugary, fatty foods. No wonder it’s associated with higher body weight, according to a 2007 Obesity study that quantified chronic stress exposure by looking at cortisol concentrations in more than 2,000 adults’ hair.
Belly fat is associated with many health issues and diseases, such as cardiovascular disease, diabetes, and cancer. Specifically it's the deepest layer of belly fat that poses health risks. That's because these "visceral" fat cells actually produce hormones and other substances that can affect your health.[1] There are many dangerous and ineffective gimmicks about how to lose belly fat. While there is no "magic bullet" that will target abdominal fat in particular, this article will explain what causes an expanding waistline and how you can make that spare tire go away.
All I can say is WOW! I knew when I started this program I was ready to change. This program has changed the way I live, how I think about nutrition and how I feel about myself. Almost immediately I had a noticeable uptick in energy. I was resting better and living life to the fullest even just in my day to day tasks. In the 6 weeks, I lost 19 pounds and at least 10.5 inches.
Nuts. It’s very easy to eat until the nuts are gone, regardless of how full you are. A tip: According to science, salted nuts are harder to stop eating than unsalted nuts. Salted nuts tempt you to more overeating. Good to know. Another tip: Avoid bringing the entire bag to the couch, preferably choose a small bowl instead. I often eat all the nuts in front of me, whether I’m hungry or not.
This has truly become a lifestyle for both myself and my husband. He started out with me in January just doing the intermittent fasting. He lost almost 20 pounds focusing on just IF and some nutrition. After some not so subtle nudging, he agreed to join me in round 2. It has been absolutely incredible for our marriage and for our health. We were able to spend so much time together doing something I enjoyed (and he does too secretly). 
There are a variety of definitions of what moderate-intensity exercise is, but it typically falls between about 70 to 80 percent of your maximum heart rate, which would be a level 4 to 6 on a 10-point perceived exertion scale. That means you are breathing harder than normal but can carry on a conversation without much difficulty and you feel pretty comfortable with what you're doing. The American College of Sports Medicine (ACSM) often recommends this level of intensity in its exercise guidelines. The lower end of this range usually incorporates the fat burning zone.
Figuratively, this time: Stress is a diet saboteur and it adds belly fat. University of Florida Health researchers have discovered that chronic stress stimulates the production of a protein called betatrophin, which interferes in normal fat metabolism. Meditate, get a massage, take a vacation—just find a way to ditch the stress and those pounds will melt away like your troubles. Here are 37 ways to ease stress today.

7 Easy Steps to Get Healthy 30 Reasons Why Women Should Strength Train Abs Made in the Kitchen Aerobic Exercise Apple Cider Vinegar and Weight Loss Avoid Holiday Weight Gain Avoid Overeating Biggest Loser Resort Palm Desert Body Weight Exercise Caffeine Reduction Caffeine Withdrawl Cardio CEO Corner Clean Eating Consistent Eating Patterns Detox Eating Habits Family Health Fantastic Resort Team Food Labels Getting Motivated Happy New Year Health Advice Healthy Lifestyle HIIT Training Hydration Inspirational Guests Internal Dialogue Medical Weight Loss Program New Habits New Year's Resolutions Obesity Stigma Portion Control Quitting Smoking Self Doubt Set Goals Sleep Smoking and Weight Gain Spring Clean Your Body Strength Training Summer Slim Down Weight Loss Goals Weight Loss Motivation Weight Loss Retreat for Women World Health Day


If you get enough protein and fat, your total calorie intake should take care of itself. Because you feel full, you won't binge on a can of Pringles and blow your calorie count for the day. The remaining 45 percent of calories in our plan comes from carbohydrates — enough to give your palate a full range of tastes and your body a combination of fast- and slow-burning fuel.
The major problem with this excess fat is that the fat cells, called adipocytes, do not function normally. They store energy at an abnormally high rate and release energy at an abnormally slow rate. What’s more, these extra and enlarged fat cells produce abnormal amounts of different hormones. These hormones increase inflammation, slow down metabolism, and contribute to disease. This complicated pathological process of excess fat and dysfunction is called adiposopathy, and it makes the treatment of obesity very difficult.
There have been major obstacles along the way-mostly ones of my own doing and past disordered thoughts that pop up, but I have stayed the course. I have learned the program, asked questions, posted pics of myself after working out, shared in the group and gained so much support along the way. It has kept my mind in a healthy place. I was worried at the beginning that this wouldn't work just like so many other programs before it. But when I woke up this morning, I actually didn't care what the numbers were, I know I am not stopping now. Whatever they say, I will keep going, keep investing in me and investing in my family. I am a different me than I was 6 weeks ago, not just physically but mentally. I feel stronger and braver than I ever have. So thank you for this opportunity to be part of this program. It saved me in ways you may never know!
Not all fat is bad. Healthy or “good” fats can actually help to control your weight, as well as manage your moods and fight fatigue. Unsaturated fats found in avocados, nuts, seeds, soy milk, tofu, and fatty fish can help fill you up, while adding a little tasty olive oil to a plate of vegetables, for example, can make it easier to eat healthy food and improve the overall quality of your diet.

A 2015 study from Brown University found that you’re likely to have less belly fat if you have a high degree of “dispositional mindfulness” — where you’re naturally inclined to pay attention to your present thoughts and feelings. The researchers speculated that this kind of “everyday mindfulness” helps overcome the instinct to stock up on calories, which are not in short supply to use modern humans.
Do more HIIT: High intensity interval training (HIIT) is as close to a magic pill as we have (except it involves a whole lot more work than just swallowing a capsule—sorry). Not only does it surge your body to max intensity during the workout, but because you’re working so hard, your body can’t deliver enough oxygen in the moment, explains personal trainer Jeremey DuVall. Your muscles accumulate a “debt” of oxygen that then has to be repaid post-workout. This throws your body into a phase of fat burning for hours after you’re done sweating, known as post-exercise oxygen consumption, or EPOC. Plus, super intense circuits like this activate muscle-building hormones like growth hormone and IGF-1, he adds.
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