Category Archives: obesity

Obesity affects bone health – Study

I have written numerous times about the dangers and negative effects of obesity. You can check out previous posts by typing in o b e s i t y in the search box on the right.

New research published in the Journal of Experimental Medicine highlights the pernicious effect of obesity on the long-term health of blood-making stem cells (hematopoietic stem cells).

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Published Dec. 27, the study was led by researchers at the Cincinnati Children’s Cancer and Blood Diseases Institute. Conducted largely in genetic models of obese mice, it shows obesity causes durable and harmful changes to the hematopoietic stem cell compartment – the blood-making factory in our bodies. Continue reading

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Filed under bone health, bone marrow, bones, childhood obesity, healthy bones, obesity

Current trends point to more than half of U.S. children suffering from obesity as adults – Harvard

If current trends in child obesity continue, more than 57 percent of today’s children in the U.S. will have obesity at age 35, according to a new study from Harvard T.H. Chan School of Public Health.

The study also found that excess weight in childhood is predictive of adult obesity, even among young children, and that only children currently at a healthy weight have less than a 50 percent chance of having obesity as adults. The findings were based on a rigorous simulation model that provides the most accurate predictions to date of obesity prevalence at various ages.

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The study was published in the November 30, 2017 issue of the New England Journal of Medicine.

“Adult obesity is linked with increased risk of diseases such as diabetes, heart disease, and cancer,” said Zachary Ward, programmer/analyst at Harvard Chan School’s Center for Health Decision Science and lead author of the study. “Our findings highlight the importance of prevention efforts for all children as they grow up, and of providing early interventions for children with obesity to minimize their risk of serious illness in the future.” (my emphasis) Continue reading

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Filed under cancer, childhood obesity, diabetes, heart disease, ideal weight, obesity, Weight, weight control

How Canada battles obesity

University of Toronto nutritional scientists are leading a study with national experts calling on the Canadian government to outlaw junk food marketing to children, impose stricter limits on unhealthy nutrients added to foods, and impose a “sugary drink tax.”

Professor Mary L’Abbé, chair of the Department of Nutritional Sciences and Banting postdoctoral fellow Lana Vanderlee, made the recommendations in a newly released report, called the Food-EPI Study, funded by the Canadian Institutes of Health Research. In it, they examined Canada’s progress on obesity-curbing measures compared with other countries.

They found that Canada performed well on some important measures, such as political leadership to support healthy eating, and transparency in developing food policies (which if secretive can lead to undue influence by the food industry). (My emphasis.)

For some important areas where Canada trails its peers, Health Canada has recently announced new policies to address these issues. However, the authors say Canada still has work to do: there are a number of areas where there are almost no policies or programs at any level of government.

Despite the good news, there were notable disparities between provinces, with Quebec having the most progressive food policies, including a restriction of junk-food marketing to children, and some other provinces failing to do as much to protect residents. Even the foods and drinks that can be sold in schools varied across provinces and territories. Overall, Ontario fared roughly in the middle of the pack.

“Even if we’re meeting best practices in some areas, we shouldn’t get complacent,” says Vanderlee. “Canada doesn’t have taxes on unhealthy foods, such as sugary drinks, even though the evidence from other countries suggests these work. If we don’t move on this front, we’re going to fall behind.”

Mexico, which has some of the world’s highest child obesity rates, is seeing success with a soda tax, and other countries are following suit, she says. The UK is on the verge of implementing such a tax, and South Africa just announced one.

“Most of the evidence indicates that sugary drinks are among the biggest contributors to sugar consumption and play an important role in weight gain,” she says. “You don’t get as full when you’re drinking your calories and it’s easy to consume a lot of sugar in a short time.” (My emphasis.) Continue reading

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Filed under chronic disease, junk food, junk food calories, obesity

Obesity is common, serious and costly – CDC

I have written about the dangers of obesity almost more times than I can remember, yet it remains a nightmare for us. As we tell our children over and over – actions have consequences. When will we learn that everything we eat and drink becomes a part of us. We don’t just get to enjoy the taste with no physical effects afterwards.

    • More than one-third (36.5%) of U.S. adults have obesity. [Read CDC National Center for Health Statistics (NCHS) data brief PDF-704KB]
    • Obesity-related conditions include heart disease, stroke, type 2 diabetes and certain types of cancer, some of the leading causes of preventable death. [Read guidelines]
    • The estimated annual medical cost of obesity in the U.S. was $147 billion in 2008 U.S. dollars; the medical costs for people who have obesity were $1,429 higher than those of normal weight. [Read summary]

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Obesity affects some groups more than others Continue reading

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Filed under childhood obesity, coronary heart disease, diabetes, heart, heart disease, obesity, stroke, Type 2 diabetes

Latest update on U.S. nutrition, physical activity and obesity

Each month, the office of Disease Prevention and Health Promotion releases an infographic with the latest data related to a Healthy People 2020 Leading Health Indicator (LHI) topic. These infographics show progress toward Healthy People 2020 LHI targets — and show where there’s still work to be done.  

This month’s featured LHI topic is Nutrition, Physical Activity, and Obesity. Check out the infographic below, then head over to the Healthy People 2020 LHI Infographic Gallery to see infographics for other LHI topic areas.

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Filed under childhood obesity, Exercise, exercise benefits, how much exercise, nutrition, nutrition information, nutritional deficiencies, obesity

Obesity rates around the world

Maybe this is part of the curse of affluence, but it is the wrong contest to be way out in front of the competition. Shamefully, obesity rates in the U.S. far outstrip the rest of the world.

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I have posted on the dangers of obesity in the past:

A fresh look at obesity – Harvard

How does obesity cause disease in organs distant from where the fat accumulates?

Public largely ignorant about obesity risks

How does obesity affect you?

What about belly fat? Central obesity

Tony

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Filed under abdominal fat, belly fat, body fat, fat, obesity

40% Of Cancers Diagnosed In U.S. Related To Obesity, CDC Says

As if we needed another reason to pay attention to our weight as well as what (and how much) we eat. Here is the CDC with some hard facts.

Tony

Our Better Health

Add cancer to the many good reasons to strive for a healthy weight

The rates of 12 obesity-related  cancers rose by 7 per cent from 2005 to 2014, an increase that is threatening to reverse progress in reducing the rate of cancer in the United States, U.S. health officials say.

According to the U.S. Centers for Disease Control and Prevention, more than 630,000 people in the United States were diagnosed with a cancer linked with being overweight or obese in 2014.

Obesity-related cancers accounted for about 40 per cent of all cancers diagnosed in the United States in 2014. Although the overall rate of new cancer diagnoses has fallen since the 1990s,  rates of obesity-related cancers have been rising.

“Today’s report shows in some cancers we’re going in the wrong direction,” Dr. Anne Schuchat of the CDC said on a conference call with reporters.

According to the International Agency for…

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Further on the dangers of sitting too long

About a year ago I began to learn the dangers of prolonged sitting. I posted a Page on it – Do you know the dangers of too much sitting?  Which you can check out at your leisure. The following analysis comes from Texas A & M University.

It’s a popular catchphrase: “Sitting is the new smoking.” A phrase that is often attributed to James A. Levine, MD, PhD, of the Mayo Clinic, but even he seems to have pulled back from that characterization a little, now simply saying that sitting for long periods of time is linked to conditions like obesity and metabolic syndrome.

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And it’s the obesity that really leads to problems, according to Mark Benden, PhD, CPE, associate professor in the Department of Environmental and Occupational Health and director of the Ergonomics Center at the Texas A&M School of Public Health. He studies the use of sit-stand desks to promote physical activity. “The better metaphor might be obesity is the new smoking,” Benden said. “That’s a little closer from a cause-and-effect standpoint, in terms of the number of people dying from these preventable causes each year.” Continue reading

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Filed under obesity, prolonged sitting, sitting, sitting too long, smoking, Smoking dangers

Plant-based diet yields cardiometabolic health benefits -MNT

I was a vegetarian in my younger days. I lasted for about five years. In those days, there wasn’t the same level of consciousness or acceptance of this kind of diet that there is now. Although I left vegetarianism, I have continued to limit the amount of red meat I consume. I also eat a lot of fish and seeds and nuts for protein sources.

Medical News Today reports that plant-based eating patterns continue to soar in popularity and a group of nutrition researchers outline the science behind this sustainable trend in a review paper, entitled “Cardiometabolic benefits of plant-based diets,” which appears as an online advance in Nutrients. The review will publish in a future special edition, entitled “The Science of Vegetarian Nutrition and Health.”

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The review outlines how a plant-based diet, which is naturally low in calories, saturated fat, and cholesterol, and rich in nutrients, like fiber and antioxidants, could be one tool, in addition to adopting a healthful lifestyle, used to improve nutrition intake and reduce the risk of heart disease, stroke, obesity, and type 2 diabetes.

 

The authors, Hana Kahleova, M.D., Ph.D., Susan Levin, M.S., R.D., C.S.S.D., and Neal Barnard, M.D., F.A.C.C., analyzed clinical research studies and reviews published until May 2017. Their research finds a plant-based diet, built around vegetables, fruits, whole grains, and legumes, can improve nutrient intake and help manage body weight and glycemic control, improve cholesterol, lower blood pressure, and reverse atherosclerosis, or the narrowing of the arteries caused by the accumulation of arterial plaque.

“The future of health care starts on our plates,” says Dr. Kahleova, the lead study author and the director of clinical research at the nonprofit Physicians Committee. “The science clearly shows food is medicine, which is a powerful message for physicians to pass on to their patients and for policymakers to consider as they propose modifications for health care reform and discuss potential amendment to the 2018 Farm Bill.”

To understand the health benefits of a plant-based diet, the researchers analyze its structure:

Fiber

Fiber contributes to bulk in the diet without adding digestible calories, thus leading to satiety and weight loss. Additionally, soluble fiber binds with bile acids in the small intestines, which helps reduce cholesterol and stabilize blood sugar.

Plant-Based Rx: Aim to eat at least 35 grams of dietary fiber a day. The average American consumes 16 grams of dietary fiber each day.

Fats

Plant-based diets are lower in saturated fat and dietary cholesterol. Replacing saturated fats with polyunsaturated and monounsaturated fats can increase insulin sensitivity, a risk factor for metabolic syndrome and type 2 diabetes.

Plant-Based Rx: Swap meat and dairy products, oils, and high-fat processed foods for smaller portions of plant staples, like a few avocado slices or a small handful of nuts and seeds, which are rich in polyunsaturated and monounsaturated fats.

Plant Protein

Vegetable proteins reduce the concentrations of blood lipids, reduce the risk of obesity and cardiovascular disease, and may have anti-inflammatory and anti-cancer effects.

Plant-Based Rx: Legumes, or lentils, beans, and peas, are naturally rich in protein and fiber. Try topping leafy green salads with lentils, black beans, edamame, or chickpeas.

Plant Sterols

Plant sterols that have a structure similar to that of cholesterol reduce cardiovascular disease risk and mortality, have anti-inflammatory effects, and positively affect coagulation, platelet function and endothelial function, which helps reduce blood clots, increases blood flow, and stabilizes glycemic control in patients with type 2 diabetes.

Plant-Based Rx: Consume a high intake of antioxidants and micronutrients, including plant sterols, from whole plant foods, like vegetables, fruits, grains, nuts, beans, and seeds. A plant-based diet supports cardio-metabolic benefits through several independent mechanisms. The synergistic effect of whole plant foods may be greater than a mere additional effect of eating isolated nutrients.

“To make significant health changes, we have to make significant diet changes,” concludes Dr. Kahleova. “A colorful plant-based diet works well for anyone, whether you’re an athlete looking to boost energy, performance, and recovery by enabling a higher efficiency of blood flow, which equates to oxygen conversion, or if you’re a physician who wants to help patients lose extra weight, lower blood pressure, and improve their cholesterol.”

Dr. Kahleova and the study authors recommend using a plant-based diet as an effective tool to treat and prevent cardiometaoblic disease, which they would like to see promoted through future dietary guidelines and nutrition policy recommendations.

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Filed under diabetes, heart disease, obesity, vegetarianism

Loneliness a bigger killer than obesity, say researchers

When it comes to aging, I am reminded pretty much daily of the old saw, “Nobody said it was easy.” We need to work on our nutrition and our exercise every day of our lives as we age. But, that is not the complete answer. “Man does not live by bread alone.” It turns out that we need to take a hint from the Millennials around us and engage with others socially, too.

Writing in Medical News Today, Honor Whiteman reported on the importance or our social needs, alsoWoman-alone-staring-out-of-window-554224.

Two new meta-analyses from Brigham Young University (BYU) in Provo, UT, reveal that loneliness and social isolation may increase the risk of premature death by up to 50 percent.

Study co-author Julianne Holt-Lunstad, Ph.D., a professor of psychology at BYU, and colleagues recently presented their findings at the 125th Annual Convention of the American Psychological Association, held in Washington, D.C.

While loneliness and social isolation are often used interchangeably, there are notable differences between the two. Social isolation is defined as a lack of contact with other individuals, while loneliness is the feeling that one is emotionally disconnected from others. In essence, a person can be in the presence of others and still feel lonely. Continue reading

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Filed under aging, loneliness, obesity, successful aging

Are sugary drink interventions cutting consumption?

I have written repeatedly about the ill effects of soft drinks, both sugary and diet, on our bodies. You can check out my Page – What’s wrong with soft drinks? for chapter and verse. So this item in Medical News Today citing efforts to curb sugary drink consumption caught my eye.

An evaluation of efforts designed to reduce how many sugary drinks we consume shows some success in changing younger people’s habits but warns they cannot be the only way to cut consumption.

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Nutritionists at the University of Leeds have carried out the first comprehensive review of interventions to reduce sugary drinks consumption. The team analyzed 40 studies with 16,500 participants across three age groups: children, teenagers and adults.

Their study, published in the Obesity Reviews journal, found that children participating in these programs reduced their sugary drink intake by around 30%, removing nearly 2.5 teaspoons of sugar from a child’s average intake of 16 teaspoons per day.

Interventions aimed at teenagers saw sugary drink consumption reduced by nearly 10%. However, there was almost no measurable change in adults participating in these programs. Continue reading

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Filed under childhood obesity, diabetes, obesity, prediabetes, sugar, sugary soda, sugary soft drinks, Type 2 diabetes

Older Obese Adults Can Benefit From Moderate Exercise

Eat less; move more; live longer. It’s never too late to start exercising according to researchers at Wake Forest Baptist Medical Center

Moderate-intensity exercise can help even extremely obese older adults improve their ability to perform common daily activities and remain independent.

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Even this fat cat can benefit …

Findings from the National Institutes of Health-funded study are published in the July issue of the journal Obesity.

In the United States, obesity affects nearly 13 million adults age 65 and older. Both overall obesity and abdominal obesity are strongly associated with the development of major mobility disability (MMD), the inability to walk a quarter of a mile, according to the study’s lead author, Stephen Kritchevsky, Ph.D., director of the Sticht Center for Healthy Aging and Alzheimer’s Prevention at Wake Forest Baptist.

Previous data on older populations had suggested that obesity may lessen the beneficial effects of physical activity on mobility. However, this research, which analyzed data from the multicenter Lifestyle Interventions and Independence for Elders (LIFE) study, showed that a structured physical activity program reduced the risk of MMD even in older adults with extreme obesity.

Continue reading

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Filed under aging, Exercise, exercise and brain health, exercise benefits, obesity, successful aging

A fresh look at Obesity – Harvard

I have been writing about obesity for years here. There are included links at the bottom of this post if you want to read further on the subject.

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Madeline Drexler, Editor, Harvard Public Health, wrote in the Spring 2017 issue: “According to 2014 national data, 35 percent of adult men and 40.4 percent of adult women are obese—that is, their body mass index, or BMI, a standard calculation of weight divided by height, is greater than or equal to 30. (Normal BMI is 18.5 to 24.9; overweight is 25 to 29.9.) Among youth 2 to 19 years old, the prevalence of obesity is 17 percent, and extreme obesity (a BMI at or above 120 percent of the 95th percentile on standard child growth charts), 5.8 percent. All told, more than 70 percent of Americans ages 20 and over are either overweight or obese. Continue reading

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More bad news for expanding waistlines

For decades, American waistlines have been expanding and there is increasing cause for alarm. Researchers make the case that metabolic syndrome is the new silent killer and that the “love handle” can be fatal.

I have posted on obesity in general and expanding waistlines in particular. If you want to read further on these subjects, check the links at the end of this post.

For decades, American waistlines have been expanding and there is increasing cause for alarm. Researchers from the Charles E. Schmidt College of Medicine at Florida Atlantic University make the case that metabolic syndrome — a cluster of three of more risk factors that include abdominal obesity, high triglycerides, high blood pressure, abnormal lipids, and insulin resistance, a precursor of type 2 diabetes — is the new “silent killer,” analogous to hypertension in the 1970s. As it turns out, the “love handle” can be fatal.

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In a commentary published in the Journal of Cardiovascular Pharmacology and Therapeutics , the authors describe how being overweight and obesity contribute to metabolic syndrome, which affects 1 in 3 adults and about 40 percent of adults aged 40 and older. Clinicians have traditionally evaluated each of the major risk factors contributing to metabolic syndrome on an individual basis. There is evidence, however, that the risk factors are more than just the sum of their parts.  Continue reading

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Filed under big waistline, obesity, overweight, Weight, weight control, weight loss

Fructose is generated in the human brain

Fructose, a form of sugar linked to obesity and diabetes, is converted in the human brain from glucose, according to a new Yale study. The finding raises questions about fructose’s effects on the brain and eating behavior.

The study was published on Feb. 23 by JCI Insight.

Fructose is a simple sugar found in fruits, vegetables, table sugar, and many processed foods. Excess consumption of fructose contributes to high blood sugar and chronic diseases like obesity. The Yale research team had demonstrated in a prior study that fructose and another simple sugar, glucose, had different effects on brain activity. But it was not known whether fructose was produced in the brain or crossed over from the bloodstream.

 

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To investigate, the research team gave eight healthy, lean individuals infusions of glucose over a four-hour period. They measured sugar concentrations in the brains of the study participants using magnetic resonance spectroscopy, a noninvasive neuroimaging technique. Sugar concentrations in the blood were also assessed.

Continue reading

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Filed under diabetes, obesity, Type 2 diabetes

Some Facts About Weight Loss That Work

I would rather focus on eating healthy and exercising regularly than losing weight. However, since we are in the holiday season and eating temptations abound, I thought I would share these observations:

“…. There are facts about obesity of which we may be reasonably certain — facts that are useful today,” says researcher Krista Casazza, PhD, RD, from the department of nutrition sciences at the University of Alabama at Birmingham, in a prepared statement, WebMD reported.

Here they are:

1. “Your genes are not your destiny. Moderate environmental changes can promote as much weight loss as even the best weight-loss drugs.”

I love this one. So often people use ‘bad genes’ as an excuse for their weight problems, ignoring completely their own bad eating habits.

2.”Even without weight loss, physical activity improves health.”

Another winner. I have reiterated this statement in at least 25 different posts on this blog. Eat less; move more; live longer.

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3. “Physical activity or exercise in the right amounts does help people lose weight.”

Amen. Listen to Uncle Sam.

4. “Continuation of conditions that promote weight loss helps people keep the weight off. Think of obesity as a chronic condition.”

Likewise, I think of good eating and exercise habits as chronic, too.

5. “For overweight children, involving the family and home environment in weight-loss efforts is ideal.”

6. “Providing actual meals or meal replacements works better for weight loss than does general advice about food choices.”

Both 5 and 6 sound like first rate advice.

7. “Weight-loss drugs can help some people lose weight.”

I am not going to argue with the experts here, but I doubt that the weight stays off if the person doesn’t change his/her eating and exercise habits. I repeat my recommendation to pay attention to what you eat and exercise regularly. That will melt the pounds away. You won’t need drugs.

8. “Bariatric surgery can help achieve long-term weight loss in some people.”

The study was supported in part by the National Institutes of Health. Our tax dollars at work.

Last, but not least, let me mention the Page that I have written – How to lose weight (and keep it off).

Tony

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Filed under American diet, calorie counting, childhood obesity, Exercise, exercise benefits, obesity, Weight, weight control