Many patients will be in pain and have a loss of appetite after surgery.[26] Part of the body's response to surgery is to direct energy to wound healing, which increases the body's overall energy requirements.[26] Surgery affects nutritional status indirectly, particularly during the recovery period, as it can interfere with wound healing and other aspects of recovery.[26][30] Surgery directly affects nutritional status if a procedure permanently alters the digestive system.[26] Enteral nutrition (tube feeding) is often needed.[26] However a policy of 'nil by mouth' for all gastrointestinal surgery has not been shown to benefit, with some suggestion it might hinder recovery.[38][needs update]

Unintentional weight loss can occur because of an inadequately nutritious diet relative to a person's energy needs (generally called malnutrition). Disease processes, changes in metabolism, hormonal changes, medications or other treatments, disease- or treatment-related dietary changes, or reduced appetite associated with a disease or treatment can also cause unintentional weight loss.[26][27][28][32][33][34] Poor nutrient utilization can lead to weight loss, and can be caused by fistulae in the gastrointestinal tract, diarrhea, drug-nutrient interaction, enzyme depletion and muscle atrophy.[28]
Trim Portions. If you did nothing else but reduce your portions by 10%-20%, you would lose weight. Most of the portions served both in restaurants and at home are bigger than you need. Pull out the measuring cups to get a handle on your usual portion sizes, and work on paring them down. Get instant portion control by using small bowls, plates, and cups, says Brian Wansink, PhD, author of Mindless Eating. You won't feel deprived because the food will look plentiful on dainty dishware.
This kind of strength training recruits fast-twitch muscle fibers, which increases fat burning, says Shore. Although you could see a small increase in the scale as you build muscle, keep in mind that muscle is more dense than fat. That means it’s very likely that you're losing fat while gaining muscle, so don’t stress, says Shore. To keep up your progress, aim to increase the amount of resistance you use when your current weight becomes too easy to lift, says Shore. 
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.
That’s a big deal considering time and opportunity are some of the biggest hurdles people face when trying to make fitness a priority. “Everyone is dealing with full schedules and competing priorities, so it’s often difficult to add something new to your routine without trading something else out,” O’Connor says. You’ll still need to shift some things around to make running a serious part of your life, but being able to run right out your front door, free of charge, eliminates some very real roadblocks. (For proof, see: 20 Incredible Stories of Weight Loss Through Running)

2. Decline Bench Sit Up Ceiling Touches: This great exercise works on your shoulder, abs and lower back. Sit on the bench with the weight on your lap. As you move backwards, lock your arms and raise the weight above your body. Touch your back to the bench and use your abs to sit up. As you sit up you should keep your arms and weight pointed to the ceiling.
A calorie isn’t always a calorie. Eating 100 calories of high fructose corn syrup, for example, can have a different effect on your body than eating 100 calories of broccoli. The trick for sustained weight loss is to ditch the foods that are packed with calories but don’t make you feel full (like candy) and replace them with foods that fill you up without being loaded with calories (like vegetables).
Most people think of cardio as a weight loss all-star, but you don’t need to spend all day on the treadmill to slim down. In fact, you might want to concentrate your efforts in the weight room. Muscle is metabolically active tissue, which means that it burns calories even when you’re not lifting; your body burns calories just to maintain muscle, so the more of it you have, the more calories you torch. You lose muscle mass naturally as you age, a process known as sarcopenia, which is why losing weight tends to get tougher the older you get. One study found that just ten weeks of resistance training increased resting metabolic rate (the number of calories your body burns when you’re not doing anything) by 7 percent. Check out this simple strength training routine that challenges your entire body.
Obviously, it’s still possible to lose weight on any diet – just eat fewer calories than you burn, right? The problem with this simplistic advice is that it ignores the elephant in the room: Hunger. Most people don’t like to “just eat less”, i.e. being hungry forever. That’s dieting for masochists. Sooner or later, a normal person will give up and eat, hence the prevalence of “yo-yo dieting”.
3. Tabata: Tabata is another form of interval training and involves 8 rounds of 20 seconds exercise followed by 10 seconds rest. Sounds easy enough but exercise should be done at a high intensity. This exercise can be done using rowing machines, dumbbells or thrusters. This is a tough exercise and is best for those who have very less time in their hands.
Of all the foods you eat, the high-protein ones are the most important for losing fat. First, they keep you feeling full, which prevents overeating and needless snacking. Second, they boost your calorie burn throughout the day because protein takes more energy to digest than carbs or fat. Third, when accompanied with weight training, a high-protein diet prevents muscle loss that might otherwise happen when you suddenly cut calories.
Earlier, belly fat was considered healthy; it was perceived as a reservoir of adipose tissues that could be utilized when a person needed extra energy. With time, the views have changed. Researchers state that excess belly fat triggers chronic cardiovascular diseases. So, it is important to measure belly fat and check how much you need to reduce. Here are some parameters to measure your waistline.
Meal prepping takes a few hours a week, but it's worth it: By getting your meals ready ahead of time, you won't be so tempted to order your go-to Chinese takeout when you're tired and hungry after work. "When you plan an entire week of dinner in advance, you're way less likely to go off course and indulge in foods that aren't good for you," says Pamela Salzman, a certified holistic health expert and cooking instructor. And since you planned things out, you'll actually get the protein, fruit, and veggies your body needs — and you'll lose weight in the process.

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.


3. Exercise Ball Crunch: This is one of the most effective ways to strengthen and flatten abs.  Studies show this exercise is 40% more effective than regular ab crunches as it targets smaller muscles for flat toned abs including the oblique’s for a small waist and the outermost muscles that your typical ab crunch may miss.  To begin, lie down on the ball positioning it under the lower back.  Place arms behind your head.  Tighten your abs as you lift your torso off the ball while keeping the ball stable.  Lower back down and repeat 15 times with 1-3 sets.

Exercising at lower intensities will use more fat for energy. This basic premise is what started the theory of the fat burning zone, which is the idea that working in a certain heart rate zone (around 55 to 65 percent of your maximum heart rate) will allow your body to burn more fat. Over the years, this theory has become so ingrained in our exercise experience that we see it touted in books, charts, websites, magazines, and even on cardio machines at the gym.
But again, there are very few solid studies that deem apple cider vinegar as a magical weight loss elixir. The drink can, however, be a decent addition to your routine if you’re already eating healthy and exercising frequently. Some research shows that people who sip on ACV may experience smaller blood sugar spikes after they eat, which can help you manage cravings. If you can stand the taste and want to try it, just be sure to dilute a tablespoon or two in 8 ounces of water, since ACV has a high acidity that can burn your throat and damage your teeth.
In what is perhaps the biggest buzzkill of all time, sex doesn’t quite count as cardio or burn a significant amount of calories: Women burn about 3.6 per minute. "It’s still a good idea," Dr. Seltzer says, citing the activity’s other benefits, like increasing the output of the neurotransmitters serotonin and dopamine, which naturally reduce food cravings.
Always be sure to get enough protein and healthy fats to start your day. Your energy after a breakfast of 2/3 eggs, 1/3 – 1/2 an avocado and 1 piece of fruit or Breakfast Tacos will be significantly higher and sustain you longer than a carb-heavy bowl of cereal. Think about it this way – if you want to lessen the “carb-chase-cravings” and energy drops that often hit in the later mid-morning and/or late afternoon, the key is to increase your protein and healthy fats earlier in the day. Avocados and blueberries are great breakfast additions because they are nutrient rich superfoods that can easily be added to your daily diet.
I'd like to think I'm pretty athletic and on the higher end of competitive, rounding out my high school and college days on swim team and playing soccer my freshman year of college - continuing as I got older I was a gym regular for at least the last 10 years, if not more, mixing in countless rec soccer leagues, kickball, and flag football teams as a boost to what I considered my "fitness routine". 5 years ago I got the crazy idea to start triathlons and quickly immersed myself in the sport - Lee and I had started dating and I hated to run and didn't own a bike but loved to swim! Lee trained me for my first 5K and after I bought a bike it was on to sprints, olympics and 2 Half Ironmans. In between all the crazy races I dragged him to (Minnesota, Miami, all over NC) we completed 2 half marathons together. To say he is a good sport ant very supportive is an understatement.
Dieting and exercise go hand in hand. If you thought that only dieting will burn your belly fat, you are wrong. If you really want to lose weight, you need to include an hour of exercise in your daily routine for targeting and reducing belly fat. Here, we have compiled a list of 16 exercises that can help you reduce belly fat faster than you thought it would take:

"It’s easy to become impatient and frustrated when you’re trying to lose weight and haven’t seen the results yet. But be realistic – you won’t see the affect overnight. Your brain’s wiring plays a huge part in resisting changes in lifestyle, and it takes time to establish new habits – up to 12 weeks. Stick with it for at least eight weeks and you should notice a change."


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.
REALITY: Fat doesn’t make you fat—consuming too many calories does. Foods that contain fat are part of a healthy diet, help maintain your lean body mass, and assist with metabolic function. Healthy fats, like omega-3 fatty acids, can be found in extra-virgin olive oil, coconut oil, almonds, avocados, cashews, peanuts, walnuts, flaxseeds, and more. If you want to lose fat, you need to eat fewer calories and/or burn more calories.
It’s a little counterintuitive, but consuming calories after you’ve just burned them appears to be vital to fat-burning. Your muscles need a combo of protein and carbs to replenish energy stores and build new muscle. In one study, people who downed a 270-calorie shake with 24 grams of protein and 36 grams of carbs after their workout lost about four more pounds of fat and built more lean muscle than those who didn’t refuel post-exercise. Eating protein after a workout may help with lean muscle gains and could also help to prevent overeating later in the day, says Lesli Bonci, RD, a nutritionist and owner of Active Eating Advice. Find out what fitness instructors eat post-workout.
Don’t buy your tickets to Bonnaroo just yet; the kind of acid that will help you slim down is the stuff right inside your cabinet. A 12-week study published in Bioscience, Biotechnology, and Biochemistry reveals that obese study subjects who made vinegar part of their diet dropped more belly fat than a control group, and other research suggests that acidic foods, like vinegar, can increase the human carbohydrate metabolism by as much as 40 percent.
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.
In addition to fat, you need to eat nourishing foods so you’re not hungry. When certain nutrient levels like iron, zinc, or B12 drop, your brain signals you to eat everything under the sun until you get it. (Really, look up pica. People with iron deficiency have turned to chewing on toilet paper to get it. Your brain doesn’t know that TP doesn’t have iron. It just tells you to keep eating until you run into iron.[3])
I want to believe that most of you have some semblance of what ‘healthy’ foods are, and if you don’t – please refer to the pretty picture I painstakingly drew below (because apparently olive oil bottles don’t give a fuck and are impossible to draw). There, you’ll see that some foods should be limited while other foods should make up the bulk of your diet.

If you ever needed an excuse to eat more avocados, this is it. People tend to steer clear of healthy fats when they're trying to lose weight, but they might just be the solution. Studies show that by simply adding some avocado to your lunch every day, it'll fill you up enough that you won't be mindlessly munching on junk food later. "Slice one in half, sprinkle a little sea salt, and eat the inside with a spoon," says Alexandra Samit, a Be Well Health Coach at Dr. Frank Lipman's Eleven Eleven Wellness Center in NYC.
The scale is not necessarily your friend. You may want to lose fat – but the scale measures muscles, bone and internal organs as well. Gaining muscle is a good thing. Thus weight or BMI are imperfect ways to measure your progress. This is especially true if you’re just coming off a long period of semi-starvation (calorie counting), as your body may want to restore lost muscles etc. Starting weight training and gaining muscle can also hide your fat loss.

To banish stubborn belly fat, you have to ramp up your workouts. In a study published in the journal Medicine and Science in Sports and Exercise, people who completed a high-intensity workout regimen lost more belly fat than those who followed a low-intensity plan. (In fact, the low-intensity exercises experienced no significant changes at all.) "You need to exercise at full intensity because the end goal is to burn more calories, and high intensity exercise does just that," says Natalie Jill, a San Diego, Calif.-based certified personal trainer. High intensity workouts mean you're going all out for as long as you can. If this sounds intimidating, think of it this way: you'll burn more calories in less time.


Most people will be able to quickly lose a few pounds when they start a cardiovascular program. Usually, this "program" is a long, drawn out battle with the treadmill or my most-hated machine, the elliptical. The initial drop in body fat is due to the new stimuli, but that trend quickly begins to taper off until eventually the individual is able to go longer and longer distances without any change in body composition. As you get "better" at doing cardio, your body makes specific adaptations to the stress being placed on it in order to become more efficient. Your body will increase your ability to transport and use oxygen, create more capillaries to deliver blood and oxygen to the needed muscles, and will strengthen the bones and muscles being used.
Carbohydrates are extremely important to training since they are the primary fuel source for working muscles. During weight training the body uses ATP for energy. ATP is replenished through something called the glycolytic pathway. This pathway converts glucose into ATP. Glucose (carbohydrate) is obtained from the bloodstream or from carbs stored in the muscle tissue as glycogen.
Cancer, a very common and sometimes fatal cause of unexplained (idiopathic) weight loss. About one-third of unintentional weight loss cases are secondary to malignancy. Cancers to suspect in patients with unexplained weight loss include gastrointestinal, prostate, hepatobiliary (hepatocellular carcinoma, pancreatic cancer), ovarian, hematologic or lung malignancies.
Diet drinks can have a kind of mental placebo effect, making you feel like it’s OK to indulge because you “saved” all those liquid calories. And research shows that your body may be tricked too: People who chug one or more diet drinks a day are more likely to be overweight—not less. Can the soft drinks, whether the sugar in them is real or a substitute. Find out 30 other tiny diet changes that can help you lose weight.
Women who ate low-fat dairy products, such as non-fat yogurt and low-fat cheese three to four times a day lost 70 percent more fat than low-dairy dieters, according to a study published in the journal Obesity Research. "Calcium serves as a switch that tells your body to burn excess fat faster," explains study author Michael Zemel, M.D., director of the Nutrition Institute at the University of Tennessee in Knoxville. Sorry, but you won't reap the same benefits from calcium-fortified O.J. Research shows that you get the best results from dairy products themselves, not fortified foods. Aim for 1,200 mg, which includes about three servings of dairy a day.
While many people turn to artificial sweeteners in a misguided attempt to whittle their waistlines, those fake sugars are likely to have the opposite effect. According to researchers at Yale, artificial sweeteners are actually linked with an increased risk of abdominal obesity and weight gain, possibly because they can trigger cravings for the real stuff and spike insulin levels in a similar fashion to real sugar.

Calm the fuck down and be patient. You didn’t get out of shape in a week, you’re not getting in shape in a week. The people who have this “fast fat loss” mentality are also the ones who tend to gain it back after the diet ends, or quit entirely after a few weeks. Not because aggressive dieting doesn’t work, but because this mentality encourages the use of fad diets that, a) won’t be sustainable in the long-term, and b) doesn’t help you build the habits that allow you to maintain the loss in the long run. 15
After training you need a rapidly digested protein shake to drive cortisol levels down and flip muscle growth into overdrive. Since this shake is so fast acting it will not keep protein synthesis sustained at a high level for long. To sustain protein synthesis you will need to consume a post training meal. 1-2 hours after training. This should be a whole food meal with protein and carbs while minimizing fat intake. This will maximize muscle growth by keeping protein synthesis levels high and reducing catabolism.
What can work like magic, though, is simply eating fewer calories than you're burning. It's pretty easy to do that every now and then. It's when you try to do it for weeks and months that things get a little trickier. By incorporating insight gained from research-backed fat-loss strategies, you have a better shot at losing the weight you want without compromising your fitness or health.
Also some research shows that the human body is primed to consume most of its calories during daylight hours. But the lifestyle is problematic for many: Because family meals and dinners with friends often are scheduled for after sunset, "people who try to stop eating after 7pm can’t do it every day for the rest of their lives," says Dr. Seltzer, who supports an alternative strategy: Eating a hearty meal at your regular dinnertime.
Chloe Madeley is a Level 2 Gym Instructor and Level 3 Personal Trainer with an Active IQ nutrition qualification. She has been an active personal trainer since 2013, helping both men and women achieve their body transformation goals in London gyms, parks and even online. She is the author of the popular health and fitness blog FitnessFondue.com and has two best-selling apps (15 Minute Fat Loss and Weights 4 Women) and is the best-selling author of The 4-Week Body Blitz and The Fat-Loss Blitz.
Creatine phosphate is stored within muscle tissue and is a source of stored energy used during short bouts of high-intensity exercise. The creatine phosphate stored in your muscle tissue assists your body’s main energy source used during the first few seconds of performing any type of exercise, called adenosine triphosphate, or ATP. Your body uses ATP for energy during the first five seconds of any exercise, such as lifting a weight, and stored creatine phosphate is then oxidized to produce an additional five to eight seconds of energy. This entire process lasts for about 15 seconds. Creatine supplements help increase the amount of creatine phosphate stored in your muscle tissue allowing you to lift more weight for more reps.
”In many ways, body fat is the same as food intake, it’s all available energy, and this is reflected in the fact that adipose tissue produces leptin. You can increase fat by 10-20g, and that’s another 90-180 calories your body “sees”, but gain 1lb of body fat and you’ve got 3500kcals that your body is seeing now…so yeah, changes in body fat can make much larger impacts than what you consume…that’s why I shake my head when guys freak out about going from 50g to 45g of dietary fat….really, you think the 45 calories per day is what is going to kill your libido, not the fact that you lost 10lbs (35,000kcals) of fat? ”
Making sure not to starve yourself is making sure you’re eating enough. Outdated recommendations to restrict calories leaves you hungry and on the dieting roller-coaster. Cutting calories isn’t sustainable for several reasons. When your body senses you’re eating less, your metabolism slows down to preserve the calories you’re getting. This makes losing weight even harder — and is a big reason why your weight-loss efforts often plateau.
Of course, it's not always easy to find—or afford—organic produce. But in general, conventionally grown items that you peel—avocado, grapefruit, bananas—are fine. But choose organic when buying celery, peaches, strawberries, apples, blueberries, nectarines, sweet bell peppers, spinach, kale and collard greens, cherries, potatoes, and imported grapes; they tend to have the highest levels of pesticides.
In a way, moderate-intensity physical activity is that "magic pill" a lot of people are looking for, because the health benefits go beyond keeping your waistline trim: Not only can it reduce your risk of cancer, stroke, diabetes and heart attacks, but studies have shown that physical activity can significantly improve the moods of patients with major depressive disorders.

Green tea isn't known only for its cancer-fighting benefits: It may help boost your metabolism, too. People who took green-tea extract three times a day saw their metabolic rate increase by about 4 percent, according to a study published in the American Journal of Clinical Nutrition. (Translation: You could burn an extra 60 calories a day, which equals about six pounds a year!) It may be because green tea contains catechins, which increase levels of the metabolism-speeding brain chemical norepinephrine, says Joy Bauer, a New York City nutritionist and author of Cooking with Joy.


If your fitness goals include a flatter belly and stronger core, you're going to need a solid plan, expert guidance, and a little outside motivation. Our 30 Days to a Flat Belly plan has all three! This comprehensive workout plan will give you results you want without a pricey gym membership; you can do these workouts anywhere — and they're all 30 minutes or less.


Now that you know exactly how much to eat everyday you will now need to figure out which foods to eat. Contrary to popular belief, the type of foods you choose to eat is far less important than how much you eat everyday. This does not mean that choosing foods for your diet doesn’t matter though. Some foods are still better than other for certain purposes.
"Crash diets (dramatically cutting down how much you eat) might help you to lose a few pounds at first, but they’re hard to sustain and won’t help you keep the weight off. It might seem like a quick and easy option, but eating too few calories can actually do more harm than good. If your calorie intake dips too low, your body could go into starvation mode. This will slow down your metabolism, making it harder for your body to lose weight. Make sensible, healthy changes to your lifestyle that you can stick to and avoid the fad diets."
Unintentional weight loss may result from loss of body fats, loss of body fluids, muscle atrophy, or even a combination of these.[26][27] It is generally regarded as a medical problem when at least 10% of a person's body weight has been lost in six months[26][28] or 5% in the last month.[29] Another criterion used for assessing weight that is too low is the body mass index (BMI).[30] However, even lesser amounts of weight loss can be a cause for serious concern in a frail elderly person.[31]
High-intensity interval training—HIIT—has gained a reputation as an efficient way to get fast results. This workout involves short (30 seconds to five minutes), vigorous bursts of activity interspersed with periods of rest for maximum results. Incorporating HIIT into your strength training may offer even more results, according to a recent study by the American Council on Exercise—the results suggest the combo may be even more effective in burning fat fast.
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