A University of Vermont study found that online weight-loss buddies help you keep the weight off. The researchers followed volunteers for 18 months. Those assigned to an Internet-based weight maintenance program sustained their weight loss better than those who met face-to-face in a support group. These are 50 ways you can lose weight without a lick of exercise.
We have a couple of other fun additions to the Hamptons: My favorite fitness stylist Karen Shapiro is curating really fun pop-up fitness shops for our Hamptons locations this summer, in East Hampton and Watermill. We are also doing a partnership with The Golden Pear to carry my favorite protein-powder smoothies with all organic produce at their four Hamptons cafés. I also have two books coming out this year, which I’m really excited about: Total Teen and Total Woman.
Both Weight Watchers and Noom provide lots of guidance. If you’re more of a self-starter — someone who just needs to be pointed in the right direction — The Mayo Clinic Diet provides pure resources. Picking up the entertaining, densely informative book is the only associated cost. You can also get the app for about half the cost of WW Mobile, but we didn’t find it as useful.
Running watches are the easiest way to track your progress, remain motivated and keep weight off. Depending how fancy you go, you can track pretty much any metric that works for you, certainly way beyond whether you’ve achieved your 10,000 steps. Whether it’s weight, BMI, resting heart rate, calories burned or activity level, the best running watch will track it all.
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.
Studies show that eating breakfast plays a part in successful weight loss — almost 80 percent of people who successfully keep weight off chow down on this meal, according to a study published in Obesity Research. "Your metabolism slows as you sleep, and the process of digesting food revs it up again," explains Heller. Aim for a 300- to 400-calorie breakfast, such as a high-fiber cereal (another metabolism booster) with skim milk and fruit.
We have a couple of other fun additions to the Hamptons: My favorite fitness stylist Karen Shapiro is curating really fun pop-up fitness shops for our Hamptons locations this summer, in East Hampton and Watermill. We are also doing a partnership with The Golden Pear to carry my favorite protein-powder smoothies with all organic produce at their four Hamptons cafés. I also have two books coming out this year, which I’m really excited about: Total Teen and Total Woman.
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.[3]
Suspect you have a sluggish metabolism? You might have hypothyroidism, or an underactive thyroid gland, which afflicts about 25 percent of American women — many of whom don't know they have the condition, according to the American Association of Clinical Endocrinologists. "The thyroid gland controls your body's metabolism, so one of the first signs that it may be off is an inability to lose weight," explains Pamela Peeke, M.D., professor of medicine at the University of Maryland and author of Fight Fat After Forty. Your doctor can determine if you're suffering from hypothyroidism by running a blood test. If you do have an underactive thyroid, you'll be treated with a synthetic thyroid supplement, which you will need to take for the rest of your life (it will return your metabolism to normal, so it should be easier to drop unwanted pounds).

It’s true that types of foods you eat may, over time, affect your metabolic profile, so they may also matter in this way, but when it boils down, sticking to any reduced-calorie diet will create the energy deficit needed to lose weight. So the point is not to question what a calorie is, but rather to understand that we need to “trade up” our foods, says Katz – exchange the very dense, calorie-packed foods for foods that are less calorie-dense and more nutritionally dense: these are the ones that are bulkier, less energetically rich, have more or higher quality protein, are lower on the glycemic index, and more fibrous.


This can be really difficult and frustrating, and it’s very individual. Sometimes, it’s a matter of being honest with yourself and/or re-thinking what and how you’re eating and moving. It might be that you need a new routine—dance cardio is great at helping you push past boundaries—but even small adjustments (like cutting almond milk from your coffee) can make a difference if you need it.
The first output will be your BMI (Body Mass Index). Your BMI is commonly used to determine if you are overweight for your height and this will let you see which weight category you currently fit into. You can then see an estimate of your Basal Metabolic Rate (BMR). Your BMR can be defined as your Calorie expenditure while at rest in a neutrally temperate environment, in the post-absorptive state. There is no need to understand these terms, but rather can be viewed as how many Calories you burn a day with no real activity or digestion occurring.
“Research continues to support the role of a high-protein diet and weight loss, however, we don’t want to reach those protein needs exclusively with animal proteins. Plant proteins found in beans not only help us feel full and stabilize blood sugar but beans are associated with longevity. Who cares about being skinny if you die young?” —Jennifer McDaniel, MS, RDN, CSSD, LD, food and nutrition expert
Another healthy change that will help you look better is to cut back on salt. Sodium causes your body to hold onto excess water, so eating a high-salt diet means you’re likely storing more water weight than necessary. Check to see if you have any of the seven clear signs you’re eating too much salt. If you’re in a rush to lose weight fast, cut out added salt as much as possible. That means keep ditching the salt shaker and avoiding processed and packaged foods, where added salt is pretty much inevitable.
There's a reason you've been hearing so much about cutting meat out of your diet lately. It's not just great for your body, but also a quick way to shed some extra pounds. "Consider swapping a few meat-centric meals each week for ones centered around vegetarian proteins — or give a full-fledged vegetarian diet a try if that's of interest to you," Gorin says. "Research shows eating a vegetarian diet may boost and speed up weight loss, resulting in a loss of up to 10 pounds." Gorin recommends topping a salad or filling a veggie taco with vegetarian protein sources like pulses — which are beans, chickpeas, lentils, and dried peas — to give your weight loss a boost. One study found eating ¾ cup of pulses daily led to a loss of close to a pound over about six weeks, versus people not eating pulses daily.
“You can’t just say, ‘I want to lose weight…someday.’ It’s that kind of loose talk, without a fence or guideline, that discourages you from getting started and prevents you from succeeding. The way I did it was by tying it to an upcoming event in my life. I never focused on a number and I didn’t set out to lose a certain number of pounds per week or overall. I merely found a target date a year away and I proclaimed to myself that I’d be in better shape by then. — Maria Menounos, author of  The Everygirl’s Guide to Diet and Fitness, on how she lost 40 pounds
“Research continues to support the role of a high-protein diet and weight loss, however, we don’t want to reach those protein needs exclusively with animal proteins. Plant proteins found in beans not only help us feel full and stabilize blood sugar but beans are associated with longevity. Who cares about being skinny if you die young?” —Jennifer McDaniel, MS, RDN, CSSD, LD, food and nutrition expert
How much fiber should I eat per day? Most Americans eat less fiber than the USDA daily recommendations suggest. This article looks at the guidelines for fiber intake in men, women, and children. We also talk about how fiber can help with weight loss, and discuss how much fiber is too much. Learn about good sources of dietary fiber and a handy meal plan. Read now
Preferred tastes: Think about whether the foods on a given diet are things that you generally enjoy. If you hate eating your greens, you might not like a diet filled with salads; but if you have a sweet tooth, a diet that substitutes milkshakes for meals might be more up your alley. Ask yourself whether you will enjoy the foods on a given diet, or if it will feel like a “diet” food that you won’t be able to stick with long-term.

MyFitnessPal: An app widely recommended by trainers and fitness enthusiasts, MyFitnessPal is great for tracking macros. Goal macros: 50% carbs, 30% fat, 20% protein. It further breaks these general guidelines into specific gram amounts that make it easy to see how some macros add up quick (carbs) and others don’t (protein — hitting 64 grams takes conscious effort!).


The best plan for you is dependent on your overall health and preference, as determined by such factors as BMI (Body Mass Index), slowing metabolism, menopause, hormone imbalance, blood pressure and other medical conditions. Additional factors include personal life, such as eating habits, exercise routines, cooking styles and stress. Professional life also plays a role and is inclusive of hours worked and travel requirements.
Not in an extreme, Atkins sort of way, but having a little protein at every meal fires up your metabolism. "Your digestive system uses more energy to break it down, so you burn more calories," explains Lisa Dorfman, R.D. However, keep protein levels to between 20 and 35 percent of your diet; eating too much of it can cause kidney strain and may cause your body to store too much fat.
Unsurprisingly, the results showed that nothing had happened to the weight of the women receiving calcium or the placebo. However, the group which took the multivitamin lost more weight – about 3 kg more – and improved their health markers. Among other things, their basal metabolic rate (the rate at which the body burns calories when at rest) increased.
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.
“If you’re feeling deprived by your diet, build in a cheat meal at least once a week in which you can indulge guilt-free. Doing this will help you avoid viewing certain foods as ‘off limits,’ which will help you crave them less.” — David Zinczenko, author of  Zero Belly Cookbook: 150+ Delicious Recipes to Flatten Your Belly, Turn Off Your Fat Genes, and Help Keep You Lean for Life!
“Whether it’s an app or paper food logs, tracking what you eat will certainly be eye-opening. Almost everyone consumes more than they think. Write everything down as soon as you’re done eating so you don’t forget anything. The simple act of recording what you eat will make you eat less. When the calories are in your face, it makes you think twice!” — Martha McKittrick, RD, CDE
HIIT stands for high intensity interval training, and it’s a great way to build muscle without spending hours in the gym. The idea is to go all out for a short period of time, followed by a slower pace that allows you to recover. Think of jogging or sprinting all out for 30 seconds, followed by a minute or two of rest, then repeat. Short bursts of high-intensity exercises keep your heart rate up while adding lean muscle. More muscle mass equals calories burned on a daily basis. Also, the more lean muscle you have, the higher your metabolism is.
The good news is that there’s increasing evidence that the brain can, in large part, “fix” itself once new behavior patterns emerge (i.e., calorie restriction, healthy food choices, and exercise). While there may be some degree of “damage” to the brain, particularly in how hunger and satiety hormones function, it can correct itself to a large degree over time. The key is that the process does take time, and like any other behavior change, is ultimately a practice. “We want to change behavior here,” says Hill. “Anyone that tells you it’s going to happen in 12 weeks, that’s bogus. We’re trying to rewire the brain. Neurobiology has told us so much about what’s going on in weight gain and weight loss. It takes a long time to develop new habits, rituals, routines. This takes months and years. But it will happen.”

Working out isn't just about losing weight. It's about overall physical health. So, just because muscle-building exercises, like lifting or strength training, don't burn as many calories, that doesn't mean you should cut them out. Building muscles is good for your bones and your overall physique. Developing muscles will also help change your shape as the mass comes off. No, you won't look bulky if you lift. That bodybuilder effect takes a very specialized diet and weight-training regimen. Plus, having strong muscles makes playing a variety of sports easier, which in turn helps you burn calories.

May have 1 to 2 glasses of wine per day. If you are drinking, it is best to have a glass before you go into a hungry time. For people that tend to crave carbs or sugar, go for a crispy, cold white. If the wine can be organic as well, that’s great. An organic red will have more health benefits than white, but the white is better for curbing cravings if you’re looking to lose weight.


“Even though a smart diet is key, exercise can help boost your body’s metabolism to shed fat. Through health care providers often recommend brisk walking or jogging, these exercises may not help you see the results you want. Instead, try interval training. Here’s how: While performing your usual walking or jogging routine, intersperse faster paces periodically throughout your workout. In other words, you may be walking at your normal pace for 2 minutes and then begin a slow jog or fast walk for 1 minute. After the faster speed, return to your slower speed and continue this alternation for 20 minutes. Research shows this type of exercise can stimulate metabolism, melt fat and push your fitness status to the next level.” — Dr. Sean M. Wells, DPT, PT, OCS, ATC/L, CSCS Owner and PT, Naples Personal Training, LLC
You can eat twice as much pasta salad loaded with veggies like broccoli, carrots, and tomatoes for the same calories as a pasta salad sporting just mayonnaise. Same goes for stir-fries, omelets, and other veggie-friendly dishes. If you eat a 1:1 ratio of grains to veggies, the high-fiber veggies will help satisfy your hunger before you overeat the grains. Bonus: Fiber is highly beneficial for preventing constipation, which can make you look bloated.

At any given time, there are dozens of weight-loss hypes in the marketplace that claim to take off 10 pounds in 10 days, or whatever. Desperation can tempt us to try anything — from "clean eating" to cutting out food groups entirely. Keep in mind: Just because an avocado-walnut-"crunchy"-kale-salad dripping in coconut oil is deemed "clean" by a so-called "expert" on your Instagram feed does not make it an unlimited food. Moral of the story? Avoid fads, eat real food, watch some Netflix, and unwind (perhaps with a glass of wine in hand). Now that's my kind of detox.
Beware of Sugar: Your body processes carbohydrates differently than fats and proteins. Eating foods with a high glycemic index (those heavy in sugar and other quick-acting refined carbohydrates) will cause your blood sugar to quickly spike then crash, making you hungry again sooner. Whereas fats and proteins are processed slower and give you a sense of satiety which lasts longer. Calorie counting doesn't work for most people because it requires too much time, effort, and discipline. Eating vegetables and foods with a higher fat and protein content and less carbohydrates means you shouldn't need to count calories, as your body won't tell you that you are hungry when you don't need food. There are literally sugar candies in grocerie stores which are marketed using the label "a fat free food!" The "low fat" healty food marketing gimmicks came out of large agribusinesses creating demand for their frankenfood products.
"Inadequate intake of calories, especially protein, causes the body to breakdown muscle tissue to meet the needs for amino acids," says Cederquist. "I have my patients focus on obtaining adequate lean protein and spreading it throughout the day." Her recommendation: focus on 100 grams per day, which breaks down into three to four ounces of protein at breakfast, lunch, and dinner, and a few ounces for snacks.
To encourage ketone production, the amount of insulin in your bloodstream must be low. The lower your insulin, the higher your ketone production. And when you have a well-controlled, sufficiently large amount of ketones in your blood, it’s basically proof that your insulin is very low – and therefore, that you’re enjoying the maximum effect of your low-carbohydrate diet. That’s what’s called optimal ketosis.
Enter the initial daily intake for the patient. If the daily intake is unknown, the auto-calculate will estimate the initial daily caloric intake based on weight management of the estimated ideal weight.CloseAny daily calorie recommendation is a starting recommendation. Please monitor the pets body weight and adjust as needed to achieve ideal weight.
If you watch TV often, you've probably seen a commercial pop up for Jenny Craig. When you do the diet, you receive a unique weight loss plan for your specific lifestyle and have a personal consultant to check in with at least once a week. And, the meals are delicious: There are more than 100 menu items to choose from for your meals, which are five a day plus one snack of your own.

Services described here are provided on a fee-for-service basis. These services are not provided or covered by Kaiser Foundation Health Plan, Inc., and you are financially responsible to pay for them. Clinical services are provided by providers or contractors of The Permanente Medical Group, Inc. Results of services vary among patients and cannot be guaranteed. Kaiser Foundation Health Plan, Inc. ("Health Plan"), and Kaiser Foundation Hospitals may receive compensation for providing facilities and/or other support in connection with these services. These services are not meant to replace any covered services under the Health Plan. If you are a Health Plan member, please check your Evidence of Coverage.
You already know to get your dressing on the side because restaurants tend to drown salads with too much. But instead of pouring it on or even dipping the leaves in, do the “fork dip.” Stick the tongs of an empty fork into the dish of dressing before skewering any salad. You’ll be surprised by how much flavor you’ll get, but with way fewer calories. Next, check out these 30 tiny diet changes that can help you lose weight.
Is the egg diet effective? There are several versions of the egg diet, all of which involve eating eggs as the main source of protein and restricting other foods. Eggs contain many nutrients, and the diet may help people lose weight. However, they contain no fiber, and they can be high in cholesterol. Find out more about the pros and cons. Read now

Write what you ate (including seasonings, garnishes, and sauces,) and how much of it you had. Record the time, the place, the company you kept, and how you were feeling at the time. You also might want to include if you were engaging in any activity, like working at your desk while you had lunch. This is a great way to see where your main concerns lie. You might be snacking too much in mid-afternoon, or running for fast food when on a time crunch at work. Though it might seem tempting to skip this step, especially if you think you can already identify your bad habits, try it out anyway. Putting down every detail will most likely illuminate areas ready for improvement you didn't know existed.
"Inadequate intake of calories, especially protein, causes the body to breakdown muscle tissue to meet the needs for amino acids," says Cederquist. "I have my patients focus on obtaining adequate lean protein and spreading it throughout the day." Her recommendation: focus on 100 grams per day, which breaks down into three to four ounces of protein at breakfast, lunch, and dinner, and a few ounces for snacks.
Remember that as activities become easier, you will burn fewer calories performing the same exercise routine. Therefore, mix it up and change your workout regularly. Do not let your body adapt and push yourself a little harder than the last workout. For example, don’t run the same distance in the same time every day, try to beat your time or increase the distance.
Keep in mind that a number on a scale won't give you the full picture. The scale does not discriminate between fat and muscle, nor will it tell you about the health of your heart or your increased endurance. If you are burning fat while gaining muscle, your weight may not change. Instead of giving up, consider non-weight-related goals, such as how many laps you can swim in one go.

Switch to Lighter Alternatives. Whenever you can, use the low-fat versions of salad dressings, mayonnaise, dairy products, and other products. "You can trim calories effortlessly if you use low-fat and lighter products, and if the product is mixed in with other ingredients, no one will ever notice," says Magee. More smart substitutions: Use salsa or hummus as a dip; spread sandwiches with mustard instead of mayo; eat plain roasted sweet potatoes instead of loaded white potatoes; use skim milk instead of cream in your coffee; hold the cheese on sandwiches; and use a little vinaigrette on your salad instead of piling on the creamy dressing.
Aim to get at least seven hours of sleep each night. Try going to bed and waking up at the same time each day. Get these seven tips for the best sleep ever! Why? Ever notice how you start to crave donuts and drive-thru breakfasts when you’re exhausted? When you don’t get enough sleep, your hormones are thrown out of balance. Running on no sleep can actually drive up the hormones that make you want to eat, while pushing down the hormones that signal for fullness—and that’s a recipe for weight gain. When you’re well-rested, it’s much easier to make healthy decisions and stay on track.
“Everyone has something that’s going to be more meaningful to them, so you have to figure out what is it that’s going to drive you to actually do it. Is it time saving? Is it cost saving? Is it the ability to make things simple [so that] you don’t need to think about it?” says Delaney. “To sit down on a Sunday and think about planning takes time. How am I justifying that time? Well if I add up the cost savings and the time savings throughout the week, it may have only taken me an hour on a Sunday, but during the week without having to think about it, I just saved five hours. If you do the math, it’s worth it. You’re also giving yourself back some mental space. So instead of waking up in the morning and winging it, now you have some sort of routine so you can feel more in the present and not consistently worrying about what’s coming next.”
Suspect you have a sluggish metabolism? You might have hypothyroidism, or an underactive thyroid gland, which afflicts about 25 percent of American women — many of whom don't know they have the condition, according to the American Association of Clinical Endocrinologists. "The thyroid gland controls your body's metabolism, so one of the first signs that it may be off is an inability to lose weight," explains Pamela Peeke, M.D., professor of medicine at the University of Maryland and author of Fight Fat After Forty. Your doctor can determine if you're suffering from hypothyroidism by running a blood test. If you do have an underactive thyroid, you'll be treated with a synthetic thyroid supplement, which you will need to take for the rest of your life (it will return your metabolism to normal, so it should be easier to drop unwanted pounds).
If you dislike cooking, abhor making food choices, or simply want low-calorie options shipped to your door, Nutrisystem might slot into your life. But it can get expensive, and food selection and flavor are hit-or-miss. Mostly miss. “It’s enough substance to call it a meal, but the texture of every ingredient was lacking,” our tester reported without enthusiasm.

Still not convinced to make sleep a priority? A lack of sleep doesn't only affect how much and which food you eat, but also how it metabolizes that food. Insufficient sleep messes with your metabolism by making your body more insulin resistant—a condition that usually leads to diabetes and weight gain—according to a 2012 study published in the Annals of Internal Medicine. (And, get this, it even changes your fat cells.)

A 2012 study also showed that people on a low-carb diet burned 300 more calories a day – while resting! According to one of the Harvard professors behind the study this advantage “would equal the number of calories typically burned in an hour of moderate-intensity physical activity”. Imagine that: an entire bonus hour of exercise every day, without actually exercising. A later, even larger and more carefully conducted study confirmed the effect, with different groups of people on low-carb diets burning an average of between 200 and almost 500 extra calories per day.
Reading ingredients and preparing food at home might seem exhausting, and it isn't easy at first to adjust. Many have lost temporarily on fad diets, and it may be tempting to buy diet food instead of preparing your own. However, fad diets are focused on quick weight loss, not long-term solutions and health management, so many people gain back everything they lost (and more!) when the diet is over. You also may be causing holes in your nutrition by cutting out certain foods completely without ensuring that you replace the vitamins elsewhere. Getting healthy and staying slim is a lifestyle change, and fad diets just don't cut it.

Chronic stress may increase levels of stress hormones such as cortisol in your body. This can cause increased hunger and result in weight gain. If you’re looking to lose weight, you should review possible ways to decrease or better handle excessive stress in your life. Although this often demands substantial changes, even altering small things – such as posture – may immediately affect your stress hormone levels, and perhaps your weight.

[1] Fryar CD, Carroll MD, and Ogden CL. Prevalence of overweight, obesity, and extreme obesity among adults aged 20 and over: United States, 1960–1962 through 2013–2014. National Center for Health Statistics. Health E-Stats. https://www.cdc.gov/nchs/data/hestat/obesity_adult_13_14/obesity_adult_13_14.pdf. (PDF, 341 KB) Published July 2016. Accessed July 6, 2017.
Some of the weight loss articles out there these days are getting a little nutty. New scientific studies that shed light on how metabolism works are wonderful and valuable in their own right, but when findings get morphed into magical new “tips” for losing weight, something’s amiss. Some recent pieces in prestigious journals, which have sought to dispel the myths of weight loss and of the individual diets themselves, suggest that the medical community is also getting tired of the hype and the unfounded assumptions that permeate the public discussion.

The main sources of calories in a typical person's diet are carbohydrates, proteins, and fat, with alcohol also being a significant portion of calorie intake for many people (though ideally this should be limited since alcohol contains many empty calories). Some studies have shown that the calories displayed on nutrition labels and the calories actually consumed and retained can vary significantly. This hints at the complex nature of calories and nutrition and is why many conflicting points of view on the "best" methodology for losing weight exist. For example, how a person chews their food has been shown to affect weight loss to some degree; generally speaking, chewing food more increases the number of calories that the body burns during digestion. People that chew more also tend to eat less, since the longer period of time necessary to chew their food allows more time to reach a state of satiety, which results in eating less. However, the effects of how food is chewed and digestion of different foods are not completely understood and it is possible that other factors exist, and thus this information should be taken with a grain of salt (in moderation if weight loss is the goal).
Counseling and community: Think about whether you need one-on-one guidance from an expert or a supportive diet-related community to succeed on a weight loss program. Some people prefer to go it alone or involve their friends or family rather than a forum, but others enjoy finding acceptance and encouragement from others who are using the same program.
This Calorie Calculator is based on the Mifflin-St Jeor Equation which calculates basal metabolic rate (BMR), and its results are based on an estimated average. The basal metabolic rate is the amount of energy expended per day at rest. There exist other equations including the Harris-Benedict Equation which was used until 1990 before the introduction of the Mifflin-St Jeor Equation and the Katch-McArdle Formula which calculates resting daily energy expenditure (RDEE) by taking lean body mass into account. The Mifflin-St Jeor Equation is considered the most accurate equation for calculating BMR, with the exception that the Katch-McArdle Formula can be more accurate for people who are leaner that know their body fat percentage. The Mifflin-St Jeor Equation is as follows:
Not much of a coffee drinker? Tea is also a natural diuretic, and types of herbal tea such as dandelion or fennel root can also lend a hand. In fact: When a recent study compared the metabolic effect of green tea (in extract) with that of a placebo, researchers found that the green-tea drinkers burned about 70 additional calories in a 24-hour period.
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.
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