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Top Nutrition and Diet Information
The latest news on nutrition, nutritional advancements, and dietary supplements.
Healthy Weight - Is a Lifestyle!
When it comes to weight loss, there's no lack of fad diets promising fast results. But such diets limit your nutritional intake, can be unhealthy, and tend to fail in the long run.
The key to achieving and maintaining a healthy weight isn't about short-term dietary changes. It's about a lifestyle that includes healthy eating, regular physical activity, and balancing the number of calories you consume with the number of calories your body uses.
Staying in control of your weight contributes to good health now and as you age.
Assessing Your Weight
If you've been thinking about your current weight, it may be because you've noticed a change in how your clothes fit. Or maybe you've been told by a health care professional that you have high blood pressure or high cholesterol and that excessive weight could be a contributing factor. The first step is to assess whether or not your current weight is healthy.
What is Healthy Weight?
Adult Body Mass Index or BMI
One way to begin to determine whether your weight is a healthy one is to calculate your "body mass index" (BMI). For most people, BMI is a reliable indicator of body fatness. It is calculated based on your height and weight.
- If your BMI is less than 18.5, it falls within the "underweight" range
- If your BMI is 18.5 to 24.9, it falls within the "normal" or Healthy Weight range
- If your BMI is 25.0 to 29.9, it falls within the "overweight" range
- If your BMI is 30.0 or higher, it falls within the "obese" range
"Underweight", "normal", "overweight", and "obese" are all labels for ranges of weight. Obese and overweight describe ranges of weight that are greater than what is considered healthy for a given height, while underweight describes a weight that is lower than what is considered healthy. If your BMI falls outside of the "normal" or Healthy Weight range, you may want to talk to your doctor or health care provider about how you might achieve a healthier body weight. Obesity and overweight have been shown to increase the likelihood of certain diseases and other health problems.
At an individual level, BMI can be used as a screening tool but is not diagnostic of the body fatness or health of an individual. A trained health care provider should perform appropriate health assessments in order to evaluate an individual's health status and risks.
Waist Circumference
Another way to assess your weight is to measure your waist size. Your waistline may be telling you that you have a higher risk of developing obesity-related conditions if you are:
- A man whose waist circumference is more than 40 inches
- A non-pregnant woman whose waist circumference is more than 35 inches
Excessive abdominal fat is serious because it places you at greater risk for developing obesity-related conditions, such as Type 2 Diabetes, high blood cholesterol, high triglycerides, high blood pressure, and coronary artery disease. Individuals who have excessive abdominal fat should consult with their physicians or other health care providers to develop a plan for losing weight.
How To Measure Your Waist Size
To measure your waist size (circumference), place a tape measure around your bare abdomen just above your hip bone. Be sure that the tape is snug, but does not compress your skin, and is parallel to the floor. Relax, exhale, and measure your waist.
Physical Activity for a Healthy Weight
Why is physical activity important?
Regular physical activity is important for good health, and it's especially important if you're trying to lose weight or to maintain a healthy weight.
- When losing weight, more physical activity increases the number of calories your body uses for energy or "burns off." The burning of calories through physical activity, combined with reducing the number of calories you eat, creates a "calorie deficit" that results in weight loss.
- Most weight loss occurs because of decreased caloric intake. However, evidence shows the only way to maintain weight loss is to be engaged in regular physical activity.
- Most importantly, physical activity reduces risks of cardiovascular disease and diabetes beyond that produced by weight reduction alone.
Physical activity also helps to:
- Maintain weight
- Reduce high blood pressure
- Reduce risk for type 2 diabetes, heart attack, stroke, and several forms of cancer
- Reduce arthritis pain and associated disability
- Reduce risk for osteoporosis and falls
- Reduce symptoms of depression and anxiety
How much physical activity do I need?
When it comes to weight management, people vary greatly in how much physical activity they need. Here are some guidelines to follow:
To maintain your weight: Work your way up to 150-minutes of moderate-intensity aerobic activity, 75-minutes of vigorous-intensity aerobic activity, or an equivalent mix of the two each week. Strong scientific evidence shows that physical activity can help you maintain your weight over time. However, the exact amount of physical activity needed to do this is not clear since it varies greatly from person to person. It's possible that you may need to do more than the equivalent of 150-minutes of moderate-intensity activity a week to maintain your weight.
To lose weight and keep it off: You will need a high amount of physical activity unless you also adjust your diet and reduce the amount of calories you're eating and drinking. Getting to and staying at a healthy weight requires both regular physical activity and a healthy eating plan.
What do moderate- and vigorous-intensity mean?
Moderate: While performing the physical activity, if your breathing and heart rate is noticeably faster but you can still carry on a conversation — it's probably moderately intense. Examples include:
- Walking briskly for 15-minute mile
- Light yard work, such as raking/bagging leaves or using a lawn mower
- Light snow shoveling
- Actively playing with children
- Biking at a casual pace
Vigorous: Your heart rate is increased substantially and you are breathing too hard and fast to have a conversation, it's probably vigorously intense. Examples include:
- Jogging/running
- Swimming laps
- Roller blading/in-line skating at a brisk pace
- Cross-country skiing
- Most competitive sports (football, basketball, or soccer)
- Jumping rope
Ideas to Help Children Maintain a Healthy Weight
You've probably read about it in newspapers and seen it on the news: in the United States, the number of obese children and teens has continued to rise over the past two decades. You may wonder: Why are doctors and scientists troubled by this trend? And as parents or other concerned adults, you may also ask: What steps can we take to help prevent obesity in our children? This page provides answers to some of the questions you may have and provides you with resources to help you keep your family healthy.
Why is childhood obesity considered a health problem?
Doctors and scientists are concerned about the rise of obesity in children and youth because obesity may lead to the following health problems:
- Heart disease, caused by:
- high cholesterol and/or
- high blood pressure
- Type 2 diabetes
- Asthma
- Sleep apnea
- Social discrimination
Childhood obesity is associated with various health-related consequences. Obese children and adolescents may experience immediate health consequences and may be at risk for weight-related health problems in adulthood.
Psychosocial Risks
Some consequences of childhood and adolescent overweight are psychosocial. Obese children and adolescents are targets of early and systematic social discrimination. The psychological stress of social stigmatization can cause low self-esteem which, in turn, can hinder academic and social functioning, and persist into adulthood.
Cardiovascular Disease Risks
Obese children and teens have been found to have risk factors for cardiovascular disease (CVD), including high cholesterol levels, high blood pressure, and abnormal glucose tolerance. In a population-based sample of 5 to 17-year-olds, almost 60% of overweight children had at least one CVD risk factor while 25% of overweight children had two or more CVD risk factors.
Additional Health Risks
Less common health conditions associated with increased weight include asthma, hepatic steatosis, sleep apnea and Type 2 diabetes.
- Asthma is a disease of the lungs in which the airways become blocked or narrowed causing breathing difficulty. Studies have identified an association between childhood overweight and asthma.
- Hepatic steatosis is the fatty degeneration of the liver caused by a high concentration of liver enzymes. Weight reduction causes liver enzymes to normalize.
- Sleep apnea is a less common complication of overweight for children and adolescents. Sleep apnea is a sleep-associated breathing disorder defined as the cessation of breathing during sleep that lasts for at least 10-seconds. Sleep apnea is characterized by loud snoring and labored breathing. During sleep apnea, oxygen levels in the blood can fall dramatically. One study estimated that sleep apnea occurs in about 7% of overweight children.
- Type 2 diabetes is increasingly being reported among children and adolescents who are overweight. While diabetes and glucose intolerance, a precursor of diabetes, are common health effects of adult obesity, only in recent years has Type 2 diabetes begun to emerge as a health-related problem among children and adolescents. Onset of diabetes in children and adolescents can result in advanced complications such as CVD and kidney failure.
In addition, studies have shown that obese children and teens are more likely to become obese as adults.
What can I do as a parent or guardian to help prevent childhood overweight and obesity?
To help your child maintain a healthy weight, balance the calories your child consumes from foods and beverages with the calories your child uses through physical activity and normal growth.
Remember that the goal for overweight and obese children and teens is to reduce the rate of weight gain while allowing normal growth and development. Children and teens should NOT be placed on a weight reduction diet without the consultation of a health care provider.
Balancing Calories: Help Kids Develop Healthy Eating Habits
One part of balancing calories is to eat foods that provide adequate nutrition and an appropriate number of calories. You can help children learn to be aware of what they eat by developing healthy eating habits, looking for ways to make favorite dishes healthier, and reducing calorie-rich temptations.
Encourage healthy eating habits.
There's no great secret to healthy eating. To help your children and family develop healthy eating habits:
- Provide plenty of vegetables, fruits, and whole-grain products
- Include low-fat or non-fat milk or dairy products
- Choose lean meats, poultry, fish, lentils, and beans for protein
- Serve reasonably-sized portions
- Encourage your family to drink lots of water
- Limit sugar-sweetened beverages
- Limit consumption of sugar and saturated fat
Remember that small changes every day can lead to a recipe for success!
Look for ways to make favorite dishes healthier.
The recipes that you may prepare regularly, and that your family enjoys, with just a few changes can be healthier and just as satisfying.
Remove calorie-rich temptations!
Although everything can be enjoyed in moderation, reducing the calorie-rich temptations of high-fat and high-sugar, or salty snacks can also help your children develop healthy eating habits. Instead only allow your children to eat them sometimes, so that they truly will be treats! Here are examples of easy-to-prepare, low-fat and low-sugar treats that are 100-calories or less:
- A medium-size apple
- A medium-size banana
- 1 cup blueberries
- 1 cup grapes
- 1 cup carrots, broccoli, or bell peppers with 2-tbsp hummus
Balancing Calories: Help Kids Stay Active
Another part of balancing calories is to engage in an appropriate amount of physical activity and avoid too much sedentary time. In addition to being fun for children and teens, regular physical activity has many health benefits, including:
- Strengthening bones
- Decreasing blood pressure
- Reducing stress and anxiety
- Increasing self-esteem
- Helping with weight management
Help kids stay active.
Children and teens should participate in at least 60-minutes of moderate intensity physical activity most days of the week, preferably daily. Remember that children imitate adults. Start adding physical activity to your own daily routine and encourage your child to join you.
Some examples of moderate intensity physical activity include:
- Brisk walking
- Playing tag
- Jumping rope
- Playing soccer
- Swimming
- Dancing
Reduce sedentary time.
In addition to encouraging physical activity, help children avoid too much sedentary time. Although quiet time for reading and homework is fine, limit the time your children watch television, play video games, or surf the web to no more than 2-hours per day. Additionally, the American Academy of Pediatrics (AAP) does not recommend television viewing for children age 2 or younger. Instead, encourage your children to find fun activities to do with family members or on their own that simply involve more activity.