Weight Management
Topic OverviewWhat is a healthy weight?A healthy weight is a
weight that lowers your risk for health problems. For most people,
body mass index (BMI) and waist size are good ways to
tell if they are at a healthy weight. But reaching a healthy
weight isn't just about reaching a certain number on the scale or a certain
BMI. Having healthy eating and exercise habits is very important. If you want to get to a healthy weight and stay
there, healthy lifestyle changes will work better than dieting. Reaching a
certain number on the scale is not as important as having a healthy
lifestyle. Why pay attention to your weight?Staying at a
healthy weight is one of the best things you can do for your health. It can
help prevent serious health problems, including: - Heart disease.
- Stroke.
- High blood pressure.
- Type 2 diabetes.
- Sleep apnea.
But weight is only one part of your health. Even if you
carry some extra weight, eating healthy foods and being more active can help
you feel better, have more energy, and lower your risk for disease. Why isn't dieting a good idea?In today's society,
there is a lot of pressure to be thin. But being thin has very little to do
with good health. Many of us long to be thin, even though we're already at a
healthy weight. So we get desperate, and we turn to diets for help. - Diets don't work.
- Diets are temporary. When you diet,
you're usually not eating the way you will need to eat over the long term. So
when you quit dieting, the extra weight comes back.
- Dieting usually
means not letting yourself have many of the foods you love to eat. So when you
quit dieting, you return to eating those foods as much as you used to-or more.
And the extra weight comes back.
- Dieting often means eating so
little food that you're hungry all the time and don't have enough energy. So
when you quit dieting, you return to eating as much as you did before-or more.
And the extra weight comes back.
- Most diet programs don't include
an increase in activity, which is vital to staying at a healthy weight. So when
you quit dieting, the weight comes back.
- Dieting can actually be bad for you.
- After they quit dieting, most people
regain the weight they lost-and many gain even more.
- Many diets do
not include the right balance of foods to keep you healthy.
- Dieting
leads to eating disorders in some people.
- Some people feel so defeated after
repeatedly failing to lose weight and keep it off that they give up altogether
on healthy eating and being active.
Since dieting doesn't work, what can you do? If
you decide that you do need to make some changes, here
are the three steps to reaching a healthy weight: - Improve your eating habits. Do it slowly. You may be tempted to do a diet overhaul and
change everything about the way you eat. But you will be more successful at
staying with the changes you make if you pick just one eating habit at a time
to work on.
- To find out how to improve your eating
habits, see
Healthy Eating.
- Get moving. Try to make
physical activity a regular part of your day, just like brushing your teeth.
- To learn how to be more active, see
Healthy Activity.
- Change your thinking. Our thoughts have
a lot to do with how we feel and what we do. If you can stop your brain from
telling you discouraging things and have it start encouraging you instead, you
may be surprised at how much healthier you'll be-in mind and body.
- To find out how to change your
thinking, see
Getting to a Healthy Weight: Lifestyle Changes.
One Woman's Story: "The biggest key
to my success is knowing that this is a process. It's not 'all or nothing at
all.' It's a matter of making choices every day. One day I might decide to eat
more than another day, and that's okay, as long as I'm paying attention. I
finally realized it wasn't a time-limited thing. It became much more of a
lifestyle change than a temporary diet. The idea that somehow I could go back
to my old ways was just not there anymore."-Maggie Read more about how Maggie changed her life and lost 50 pounds. |
Frequently Asked QuestionsLearning about healthy weight: | |
Are You at a Healthy Weight?Your first step to find
out if you are at a healthy weight is to find out what your
BMI, or body mass index, is and what your waist size
is. For most people, these are good clues to whether they are at a healthy
weight. What's your BMI?A healthy weight is one that is right for your body type and height
and is based on your
body mass index (BMI) and the size of your waist (waist circumference). If you
are age 20 or older, use the
Interactive Tool: Is Your BMI Increasing Your Health Risks? to check
your BMI when you know your height in feet, weight in
pounds, and waist circumference. - If your BMI is less than 18.5, you are in the
underweight category. Talk to your doctor to find out if your weight is a
symptom of a medical problem. A registered dietitian can help you learn about healthy eating.
- If your BMI is
between 18.5 and 24.9, you are in the recommended weight range for your height.
But your health may still be at risk if you are not getting regular physical
activity and practicing healthy eating.
- If your BMI is 25 to 29.9,
you are in the overweight category. This may or may not be unhealthy, depending
on some other things, like your waist size and other health problems you may
have.
- If your BMI is 30 or higher, you're in the obese category.
You may need to lose weight and change your eating and activity habits to get
healthy and stay healthy. See the topic
Obesity.
If you are Asian, your recommended weight range may be
lower. Talk to your doctor. It's important to remember that your
BMI is only one measure of your health. A person who is not at a "normal" weight according
to BMI charts may be healthy if he or she has healthy eating
habits and exercises regularly. People who are thin but don't exercise or eat
nutritious foods aren't necessarily healthy just because they are thin. What's your waist size?After you know your BMI,
it's time to look at your waist size. Measuring your waist
can help you find out how much fat you have stored around your belly. People
who are "apple-shaped" and store fat around their belly are
more likely to develop weight-related diseases than people who are
"pear-shaped" and store most of their fat around their
hips. Diseases that are related to weight include type 2 diabetes, heart disease, and
high blood pressure. Measure your
waist size with a tape measure. The tape should fit snugly but not press into
your skin. For most people, the goal for a healthy waist
is:footnote 1 - Less than
40 in. (102 cm) for men.
- Less than
35 in. (88 cm) for women.
If you are Asian, the goal for a healthy waist is: - Less than
36 in. (91 cm) for
men.
- Less than
32 in. (81 cm) for
women.
Waist size: What to do If you are ... | Then ... |
---|
In the underweight
range on the BMI chart: | See your doctor to
find out if you have a medical problem that is causing your low
weight. | Within the
recommended BMI range and your waist size is within the recommendations: | Your weight is not
a problem for your health. | At or above the recommended BMI
range and your waist size is higher than recommended: | See your doctor to find out if
you have health problems that might be related to your weight. You may need to change your eating habits and get more active. | In the overweight category on
the BMI chart but your waist size is within the recommendations: | Your weight may be right for
you. But you need to see your doctor to find out if you have health problems
that might be related to your weight. | In the obese category on the
BMI chart, no matter what your waist measurement is: | You may need to lose weight to
be healthier, as well as change your eating and activity habits. | Your doctor may want to take another measurement,
called a waist-to-hip ratio. This measurement is a
comparison of your waist size to your hip size. A higher waist-to-hip ratio
means that you are
more "apple-shaped" than "pear-shaped" and therefore at a higher risk for
weight-related disease. Body fat testing is sometimes used to
help find out if a person has a healthy percentage of body fat. Do you have other health problems?If you are in
the overweight or obese category and your waist size is too high, it's
important to talk to your doctor about weight-related health problems you may
have, including: - High cholesterol.
- Heart disease.
- High blood pressure.
- Sleep apnea.
- Type 2 diabetes.
- Metabolic syndrome.
- Osteoarthritis.
- Some forms of cancer, such as colon, breast, and prostate
cancers.
If you have two or more of these health problems, your
doctor may advise you to make some lifestyle changes and/or lose weight. He or
she may also refer you to a
dietitian, an expert in healthy eating. - Interactive Tool: Is Your Weight Affecting Your Health Risks?
Are you unhappy with your weight?If you're at a
healthy weight but are still unhappy with your weight, you're not alone. Lots
of people are. It can be hard to be satisfied with how you look
when TV and magazines show unrealistic images of what it means to be thin. Here
are some things to think about: - There is no "ideal" body shape or body size.
We let society tell us what "ideal" means. But the way a skinny model looks in
a magazine or TV ad is not normal or "ideal."
- Do you feel good and
have plenty of energy? Can you do the activities you want to do? That's what
healthy living is all about, no matter what your weight is.
- Trying
to lose weight when you don't have to can actually be bad for you. Most people
who diet end up gaining back the pounds they lost-and more.
What Affects Your Weight?Genetic makeup-what you inherit-plays the biggest roleWhen we say "genetic makeup," we're talking about everything you
inherited from your ancestors, from the color of your eyes or the shape of your
toes to the way your brain works and the way your body stores fat. Your genetic makeup has a very big effect on your weight. It
affects: - Yourbasal metabolic rate. That's
the rate at which your body uses energy (calories) at rest. Some people are
born with higher basic metabolic rates than others. These people naturally burn
more calories than the rest of us.
- Regular physical activity can raise your
metabolic rate.
- Very low-calorie diets will lower your metabolic
rate. A lower metabolic rate makes it easier to gain weight, because you don't
burn calories as fast.
- Yourbody signals, such as your appetite and feeling hungry or full.
- Your fat distribution.
- Some people have slim legs, some have
heavy legs. You can't change where your body stores fat.
- Typically, men store fat in the abdomen while women store more in the hips and thighs. As women age, more fat is stored in the abdomen.
Nutrition-what and how you eat-also affects your weight The average American meal contains too many
calories. It also contains too much saturated fat,
animal protein, salt, alcohol, and sugar.
It can be hard to make healthy food choices: - Emotions and easy access to fast foods and
snacks are among the many
things that influence our food choices today.
- Lack of time leads many people to eat on an irregular schedule or
skip meals. People who do that have more trouble staying at a healthy weight
than people who eat regular meals.
- Sometimes a food that seems like
a healthier choice may not be. A low-fat cookie may have less fat, but usually
it is high in sugar and has the same number of calories as a regular cookie.
For more information, see the topic Quick Tips: Cutting Calories. Physical activity-how much you move-is the third factor that affects your weightBeing physically active is an important
part of staying at a healthy weight. - Regular activity helps you stay fit. When you're fit, you feel
better and have more energy for work and for your family. When you're fit, you
burn more calories, even when you're resting.
- Even if you are
overweight or obese, you will benefit from being more physically fit. Improving
your fitness is good for your heart, lungs, bones, and joints. And it lowers
your risk for
heart attack,
diabetes,
high blood pressure, and some cancers. If you already
have one or more of these problems, getting more fit may help you control other
health problems and make you feel better.
- Moderate activity is safe
for most people, but it's always a good idea to talk to your doctor before you
start an exercise program.
Getting to a Healthy Weight: Lifestyle ChangesWhat is a healthy lifestyle? A healthy
lifestyle means: - Eating healthy foods. This includes fruits, vegetables, and whole grains. If you eat meat and
dairy foods, choose lean meats and low-fat dairy foods most of the time.
Healthy eating also means not eating too much sugar, fat, or fast foods. You
can still have dessert and treats now and then. The goal is moderation. See
Healthy Eating.
- Making some kind of physical activity part of your daily routine. "Physical
activity" doesn't have to mean regular visits to the gym or running marathons.
There are lots of other ways to fit activity into your life. See
Healthy Activity.
- Not smoking. Weight gain is a big concern for many people who want to quit
smoking. But many people don't gain weight. And it's more of a health risk to
keep smoking than it is to gain a few extra pounds when you quit. For
information, see the topic
Quitting Smoking.
- Drinking only moderate amounts of alcohol. That's up to 2
drinks a day for men, 1 drink a day for women.
- Managing stress. Many people find that
eating is their way of managing stress. If you have a lot of stress in your
life, it can be hard to focus on making healthy changes to your lifestyle. For
more information about how to deal with stress, see the topic
Stress Management.
Becoming more active and improving your eating habits are
the two main ways to reach a healthy weight. One Woman's Story: "I see it as a whole life
change. I actually get mad at people when they say, 'You've been on a diet.'
I'm not on a diet. I've never been on a diet. I just changed the way I eat. I
changed the way I live."-Jaci Read more about how Jaci lost 65 pounds. |
First, change your thinkingIf you need to make
some lifestyle changes to get to a healthy weight, you'll have more success if
you first change the way you think about certain things: - Don't compare yourself to others. Healthy bodies come in all shapes and sizes. Our culture focuses
much too much on thinness, and thinness is just not realistic or natural for
most of us. Yet we feel bad when we can't achieve such an unrealistic body
size. Body size isn't as important as being healthy.
- Pay attention to how hungry or how full you feel. When you
eat, pay attention to why you're eating and how much you're
eating.
- Forget about dieting. Dieting almost
never works over the long term.
- Decide that you're going to improve your health instead of deciding to go on a diet. For
example, you may want to:
- Become more fit.
- Lower your
blood pressure.
- Lower your blood sugar (if
you have
diabetes or
prediabetes).
- Lower your
cholesterol.
For more on how positive thinking can help you, see: - Stop Negative Thoughts: Choosing a Healthier Way of Thinking.
- Weight Management: Stop Negative Thoughts.
- Stop Negative Thoughts: Getting Started.
One Woman's Story: "I finally
realized it wasn't a time-limited thing. It wasn't like, 'Well, I'm going to be
really good and stay on this food plan now until I get the weight off.' It was
more a realization that, 'You know, at 62, if I want to weigh 130 to 135
pounds, then I have to do these things.' I can't stop doing them just because I
lose the weight. So it became much more of a lifestyle change than a temporary
diet. The idea that somehow I could go back to my old ways was just not there
anymore."-Maggie Read more about how Maggie changed her life and lost 50 pounds. |
How do you change your lifestyle?Making any kind
of change in the way you live your daily life is like being on a path. The path
leads to success. Here are the first steps on that path: 1. Have your own reasons for making a change2. Set goals you can reach3. Measure how your health has improvedBefore you make lifestyle changes, ask your doctor
to check your
cholesterol levels,
blood pressure, and
blood sugar. Your doctor can help you know your risk for heart attack and stroke. Keep track of your weight. - Weigh yourself no more than once a
week, unless your doctor tells to you to do so more often because of a health
problem.
- Try to weigh yourself on the same scale, at the same time
of day, in about the same amount of clothing.
- Remember that many
things can affect your weight. It's normal for your weight to go up and down by
a few pounds from one day to the next. Try to look at the general trend of your
weight, rather than the day-to-day changes.
- Aim to lose no more
than 1 to 2 pounds a week. Weight loss of more than that often means that you
are not getting enough nutrients to be healthy. And some of the weight you lose
may be from lean body tissue (muscle and organ tissue) or water loss, not
fat.
Have your cholesterol, blood pressure, and blood sugar checked again after you have lost 5% to 10% of your
weight or in 3 to 6 months. You can also check your blood pressure and blood
sugar at home. - Blood sugar levels can tell you whether your
lifestyle changes or weight loss are helping to control your
diabetes.
- Cholesterol and
triglyceride levels can tell you whether your
lifestyle changes or weight loss are lowering your risk for heart attack and stroke..
- Blood pressure can tell you whether your lifestyle changes
or weight loss are lowering your risk for heart attack and
stroke.
Another way to measure improvements is to look for changes in your fitness level. For example, are you
able to walk longer and on more days than when you started? Can you climb a
flight of stairs without getting as tired or out of breath? Do you have better
strength and muscle tone? Do you have more energy? 4. Prepare for slip-upsHere's one person's list of barriers to taking a brisk 30-minute walk every day, along with some possible solutions. Barriers | Solutions | I might be too busy. | - My backup plan will be to break my
usual 30-minute walk into two 15-minute walks or three 10-minute walks.
| I might get bored. | - I'll listen to music or a podcast
while I walk.
- I'll get my neighbor to walk with me.
| It might rain. | - My backup plan will be to use an
exercise video or a treadmill in front of my TV when the weather's bad.
|
5. Get supportYou can use a personal action plan(What is a PDF document?) to write down your goals and organize your support system. Healthy EatingEating a
healthy, balanced variety of foods is far more
satisfying than following a strict weight-loss diet that leaves you feeling
deprived and hungry. And healthy eating paired with increased activity is more
likely to get you to a healthy weight-and keep you there-than dieting is. Dieting is not healthy eatingDieting
may make you feel like a failure if you can't lose weight or stay on your diet.
Instead of blaming the diets, people who are overweight tend to blame
themselves. You may think, "If I could just stay on that diet, I would be
thin." This doesn't take into account that your body has powerful regulators
that affect your weight-things you can't do anything about. And if you've
dieted again and again without success, you can get into a cycle of negative
thinking-and even gain more weight. When you go on a diet, you
deprive yourself of food. For many people, that means being hungry most of the
time and not having enough energy. It also can lead you to think about food all
the time. So you're much more likely to overeat when you finally give yourself
permission to eat. It's important to make healthy eating changes that you can
keep doing, instead of dieting. Many different diets and
programs promise rapid weight loss but rarely
work for the long term. Some might even be dangerous. - Weight Management: Should I Use Over-the-Counter Diet Aids?
- Obesity: Should I Use a Diet Plan to Lose Weight?
But what does healthy eating mean? Everywhere we turn, we
get conflicting advice on what foods are good for our health. It can be hard to
know where to start after you've decided to make a change. - First, start paying attention to your
body signals and to your hunger
triggers.
- Then get smart about eating healthy foods and controlling
your portions.
First, learn to pay attentionKnow your body signalsYoung children are good at paying attention to their body signals. They eat when they're hungry. They stop when they're full. But as we grow older, and fast food, huge portions, and delicious snacks
are everywhere, many of us start to ignore our body signals. We eat for other
reasons-or sometimes without thinking at all. You can ignore
those body signals for a while, but they are powerful. And if you ignore them
for a long time (by dieting, for example) you lose your ability to pay
attention to them. You get out of practice. - Healthy Eating: Recognizing Your Hunger Signals
Know your eating triggersCommon triggers to eating when
you're not really hungry are: Identify your eating triggers by keeping an
eating journal for a week or two. Write down
everything you eat, plus the time of day and what you were feeling right before
you ate. Choose sensiblyAfter you understand
why and how you eat, it's time to
look at what and how much you
eat. Many people classify foods as "good" or "bad" based on their
calorie or fat content and, sometimes, on how nutritious they are. But a
healthy diet has room for all kinds of foods. A healthy, balanced
diet means getting the right amounts of: - Fat. Choose unsaturated fats like olive and canola
oil, nuts, and fish.
- Carbohydrate. Choose carbohydrate that
comes from whole grains, fruits, vegetables, legumes, and low-fat dairy
products.
- Protein. Choose lean protein as often as you can, such
as all types of fish, poultry without skin, low-fat dairy products, and legumes
(peas, beans, and lentils).
- Fiber. Fiber
comes from plant foods, like whole grains, fruits, vegetables, legumes, and
nuts.
- Vitamins.
- Minerals.
Keep a food diary(What is a PDF document?), writing down everything you eat for a week or two. It will
help you see which foods you need to eat more of and which foods you're eating
too much of. Tips for choosing your food sensiblyControl your portionsJust cutting back on
the size of your portions can be a great way to get to or stay at a healthy
weight-without giving up any of your favorite foods. - Healthy Eating: Making Healthy Choices When You Eat Out
One Woman's Story: "Before I gained the weight, I
wish someone said, 'portion sizes.' If you're not thinking about it, you go to
a restaurant, you think you're getting a portion size. You're not thinking
they're serving you six plates of food."-Jaci Read more about how Jaci lost 65 pounds. |
Healthy ActivityRegular activity makes you healthierPhysical
activity is key to improving your health and preventing serious illness.
Experts say to do either of these things to get and stay healthy: - Moderate activity for at least 2½ hours
a week. Moderate activity means things like brisk walking, brisk cycling, or
shooting baskets. But any activities-including daily chores-that raise your
heart rate can be included. You notice your heart
beating faster with this kind of activity.
- Vigorous activity for at least 1¼ hours a week. Vigorous activity means things
like jogging, cycling fast, or cross-country skiing. You breathe rapidly and
your heart beats much faster with this kind of activity.
Physical activity for weight loss means burning more calories. Experts say more than 5 hours a week (aim for 60 to 90 minutes a day) of moderate activity can help. Being active in several blocks of 10-minutes or more
throughout the day can count toward these recommendations. You can choose to do
one or both types of activity. If you're not active right now,
you don't have to start out at this level. Instead, start small and build up
over time. Moderate activity is safe for most people. But it's always a good
idea to talk to your doctor before you start an exercise program. Regular moderate-intensity physical activity lowers your risk of: - Heart disease.
- High blood pressure.
- Stroke.
- Type 2 diabetes.
- Obesity.
- Breast cancer,
colon cancer, and cancers of the female reproductive
system.
- Anxiety.
- Depression.
Work activity into your daily lifeBrushing your
teeth and getting dressed are regular parts of your day, right? You hardly
think about it. It can be that way with physical activity too.
With practice and repetition, you can make activity-whether it's formal
exercise or an activity like gardening or walking the dog-so routine that it
becomes something you just do because it's part of your day and you enjoy
it. Like any lifestyle change, changing your activity level may be
easier if you have a plan. Set small goals. Be creative. For more information,
see
Getting to a Healthy Weight: Making Lifestyle Changes.
Don't wait until you are "thin" to do the activities you want to
do. Just make sure to start slowly. If you aren't active at all, talk to your
doctor first. No matter what you do, the key is making physical
activity a regular, fun part of your life. And as soon as you start seeing the
results, you'll be even more motivated to keep doing it. - Fitness: Adding More Activity to Your Life
- Quick Tips: Getting Active at Home
What's the right amount?It's best to get some
moderate physical activity for at least 2½ hours a week. Brisk walking is one
kind of moderate activity. But if you're not active at all, work
up to it. For example, you may want to start by walking around the block every
morning, or walking for just 10 minutes. Over time, you can make your walks
longer or walk more often throughout your day and week. Here's
how you can tell if an activity or exercise is making you work hard
enough: - If you can't talk while you do it, you're
working too hard.
- You're at the right level if you can talk but
not sing during the activity.
You can also use the rating of perceived exertion scale. Walking is one of the easiest and cheapest ways to get
moving for most people. Keep track of the number of steps you take each day
with a phone app or pedometer.
Using it may motivate you to walk more in order to increase your
total steps. - Fitness: Walking for Wellness
- Fitness: Using a Pedometer or Step Counter
Identify your barriersThere are lots of reasons
why you may have trouble getting more active. These are called barriers. These barriers can range from "I don't have time" to "I'm too
embarrassed." Figuring out your barriers and how you will respond
to them is a big step in planning the lifestyle changes that will lead you to a
healthy weight and help you stay there. For more information, see the topic
Fitness: Getting and Staying Active. Other Places To Get HelpOrganizationsCenters for Disease Control and Prevention: Division of Nutrition, Physical Activity, and Obesity (U.S.) www.cdc.gov/nccdphp/dnpao/index.html U.S. Department of Agriculture: ChooseMyPlate.gov www.choosemyplate.gov ReferencesCitations- National Heart, Lung, and Blood Institute, National Institutes of Health (2000). The Practical Guide: Identification, Evaluation, and Treatment of Overweight and Obesity in Adults (NIH Publication No. 00-4084). Available online: http://www.nhlbi.nih.gov/guidelines/obesity/prctgd_c.pdf.
Other Works Consulted- Anspaugh DJ, et al. (2011). Achieving a healthy weight and body composition. In Wellness: Concepts and Applications, 8th ed., pp. 259-305. New York: McGraw-Hill.
- Lysen LK, Israel DA (2012). Nutrition in weight management. In LK Mahan et al., eds., Krause's Food and the Nutrition Care Process, 13 ed., pp. 462-488. St Louis: Saunders.
- National Heart, Lung, and Blood Institute, National Institutes of Health (2000). The Practical Guide: Identification, Evaluation, and Treatment of Overweight and Obesity in Adults (NIH Publication No. 00-4084). Available online: http://www.nhlbi.nih.gov/guidelines/obesity/prctgd_c.pdf.
- U.S. Department of Health and Human Services (2008). 2008 Physical Activity Guidelines for Americans (ODPHP Publication No. U0036). Washington, DC: U.S. Government Printing Office. Available online: http://www.health.gov/paguidelines/guidelines/default.aspx.
- Whitney E, Rolfes SR (2013). Energy balance and body composition. In Understanding Nutrition, 13th ed., pp. 229-251. Belmont, CA: Wadsworth.
- Whitney E, Rolfes SR (2013). The carbohydrates: Sugars, starches, and fibers. In Understanding Nutrition, 13th ed., pp. 94-123. Belmont, CA: Wadsworth.
- Whitney E, Rolfes SR (2013). Weight management: Overweight, obesity, and underweight. In Understanding Nutrition, 13th ed., pp. 259-291. Belmont, CA: Wadsworth.
CreditsByHealthwise Staff Primary Medical ReviewerAnne C. Poinier, MD - Internal Medicine Kathleen Romito, MD - Family Medicine Martin J. Gabica, MD - Family Medicine Specialist Medical ReviewerRhonda O'Brien, MS, RD, CDE - Certified Diabetes Educator Current as ofNovember 28, 2016 Current as of:
November 28, 2016 National Heart, Lung, and Blood Institute, National Institutes of Health (2000). The Practical Guide: Identification, Evaluation, and Treatment of Overweight and Obesity in Adults (NIH Publication No. 00-4084). Available online: http://www.nhlbi.nih.gov/guidelines/obesity/prctgd_c.pdf. Last modified on: 8 September 2017
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