Tuesday, August 12, 2014

Obesity's Causes and Repercussions

Obesity's Causes and Repercussions Obesity's causes and repercussions continue to be topics of research.

Fries and pies aren’t the only reasons Americans are obese.

The following article originally appeared on AlterNet.

Americans have become huge. Between the 1960s and the 2000s, Americans grew, on the average, an inch taller and 24 pounds heavier. The average American man today weights 194 pounds and the average woman 165 pounds. The growing girth has led to the creation of special-sized ambulances, operating tables and coffins as well as bigger seats on planes and trains. Almost a third of American children and teens are overweight, but 84 percent of parents believe their children are at a healthy weight in one study. Why? The adults are probably overweight too.

Still there are scientific reasons why Americans are blimping up and they aren’t limited to eating too much and exercising too little. Here are a few areas under suspicion.

1. Antibiotics in food and as medicine. A recent article in the New York Times confirms suspicions that the antibiotics routinely given to livestock to make them fat do the same thing to people. Antibiotics are thought to fatten by changing gut bacteria to make absorption of nutrients more efficient. In 1974, an experiment was done on several hundred Navy recruits to see if they would gain weight on antibiotics and, after only seven weeks, they did. An experiment was also done, unethically it sounds, on “mentally deficient spastic” children in Guatemala in the 1950s, reports the Times. The children gained an extra five pounds over a year compared with children who were not given antibiotics. Denmark researchers found babies given antibiotics within six months of birth were more likely to be overweight by age seven.

Most researchers blame over-prescription of antibiotics for excessive human exposure; US children get as many as 20 antibiotic treatments while they are growing up, says Martin Blaser, a leading antibiotic researcher at New York University Langone Medical Center. But studies show there are antibiotic residues in US food too, especially in meat and milk, and the government tests for them. That means even if you avoid unnecessary antibiotics from the doctor, you could be getting them from the grocery store.

2. Other livestock fatteners. If antibiotics used to make livestock fat could make us fat, is there any reason to think other weight-producing drugs for livestock wouldn’t do the same?Ractopamine, marketed as Paylean for pigs, Optaflexx for cattle and Topmax for turkeys is widely used in the US and banned in many other countries. It is given to 60 to 80 percent of US pigs, 30 percent of ration-fed cattle and an undisclosed number of turkeys. There is no withdrawal period for ractopamine before slaughter but Big Ag says the drug is not in the meat because it exits the animal as manure. Okay, but what happens to the manure?

Also banned in European countries are the hormones US cattle growers rely upon, such as oestradiol-17, trenbolone acetate, zeranol and melengestrol. Zeranol may have more actions than just making mammals fat. It is a “powerful estrogenic chemical, as demonstrated by its ability to stimulate growth and proliferation of human breast tumor cells in vitro at potencies similar to those of the natural hormone estradiol and the known carcinogen diethylstilbestrol,” says the Breast Cancer Fund. Translation: it may be linked to US breast cancer rates, too.

No wonder Europe doesn’t want our beef.

3. Pesticides and other endocrine disrupters. Some antibiotics and artificial sweeteners are similar molecules to endocrine disrupters—the chemicals used to make fire retardants and plastics that are increasingly in our food and environment. Endocrine disrupters, like BPA (Bisphenol A), banned in some baby bottles, and Triclosan found in Colgate’s Total and many dish detergents, are linked to a host of shocking symptoms like genital deformities in wildlife and infertility, low sperm counts and possible early puberty and diabetes in humans. But they also may be linked to obesity.

As early as 2003, the journal Toxicological Sciences addressed effects that endocrine disruptors have on fetal development that likely play a role in adult obesity. “Obesity has been proposed to be yet another adverse health effect of exposure to endocrine disrupting chemicals (EDCs) during critical stages of development,” echoes an article in the International Journal of Andrology. Pregnant women with high levels of the endocrine disrupter PFOA (perfluorooctanoic acid used in the manufacture of as Teflon and Gore-Tex) in their bodies were three times as likely to have daughters who grew up to be overweight, reported the New York Times’ Nicholas Kristof.

4. Sugar substitutes. Artificial sweeteners have always been billed as a way to cut calories and lose weight. But recent research shows they may do just the opposite. When researchers at the University of Texas Health Science Center studied 474 people who drank two or more artificially sweetened soft drinks a day they found the people gained five times as much as those not drinking diet drinks. Thanks for nothing!

There are three reasons artificial sweeteners may do more harm than good. One is that some of the sweeteners—which tend to be chemicals like acesulfame potassium and aspartame—may slow metabolism, speculate researchers. Secondly, artificial sweeteners separate “food seeking behavior” from the “reward” of real nutrients and can set up sweets addictions because the reward is never received. They literally “train” people to crave sweets. Finally the presence of artificial sweeteners in a product doesn’t automatically mean natural sweeteners aren’t present too. Some food manufacturers use both. Read the label. Marion Nestle, a professor in nutrition, food studies and public health at New York University and leading food expert, told me she isn’t aware of any convincing evidence that proves artificial sweeteners help people to lose weight. One artificial sweetener, Splenda, has similarities to endocrine disrupting pesticides….

5. Industry and government marketing. Most people are aware of aggressive junk food marketing, especially to children, and everyone from Disneyland to First Lady Michelle Obama has spoken out about it. In a study in the journal Pediatrics, children who tasted identical graham crackers and gummy fruit snacks, some with and some without cartoon characters, “significantly preferred the taste of foods that had popular cartoon characters on the packaging.” Who says advertising doesn’t work?

Researchers who studied 500,000 California middle- and high-school students found those who attended schools located near fast-food outlets—surprise!—weighed more. Still, it is not just the food industry that is responsible for our growing national girth.

The USDA, even though it cautions food consumers about high-fat, obesity-linked foods, plays the other side of the street as well and is linked to a group that seeks to get people to double their cheese intake to help milk sales. Dairy Management, a USDA “marketing creation” with 162 employees, according to the New York Times, has helped Pizza Hut, Taco Bell, Burger King, Wendy’s and Domino’s cheesify their menu options!

“If every pizza included one more ounce of cheese, we would sell an additional 250 million pounds of cheese annually,” rhapsodized the Dairy Management chief executive in a trade publication. Though Dairy Management is mostly funded by farmers, it received $5.3 million from the USDA during one year, for an overseas dairy campaign, which almost equals the total $6.5 million budget of USDA’s Center for Nutrition Policy and Promotion—the group that cautions us about fatty foods like cheese. Yes, the government is talking out of both sides of its mouth when it tells the public what to put in its mouth.



I can help you with diet planning and counseling.

For information on nutrition and losing weight, go to Rays Nutrition Center
or contact me at: raybarmore@gmail.com

Ray R Barmore
Health and Wellness Coach
The Herbal Guy
San Diego California
619-876-5273
Skype: barmore4


Other Blog:
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Wednesday, August 6, 2014

You Might want to rethink a Gluten free diet

Going gluten-free is all the rage these days. It's the diet of choice for Hollywood starlets and health nuts alike; supermarket aisles are packed full of products touting their lack of the stretchy protein. But for a lot of people, the gluten-free lifestyle may do more harm than good.

What Is Gluten?

Gluten is a sticky, stretchable protein found in grains like wheat, barley, oats, and rye. Formed during the kneading process, gluten chains create a matrix that traps carbon dioxide bubbles produced by the fermenting yeast. This gives bread its chewiness, pizza dough its stretchiness, and acts as a thickening agent in dozens of products from salad dressing to soy sauce. Even beer contains a fair amount.

Gluten is a relatively new addition to the human diet. For a large portion of our species' evolution, humans subsisted primarily on animal protein supplemented with fruits, vegetables, nuts, and seeds. It wasn't until the start of the Neolithic era—around 9500 BC—and the transition to agriculture that we began consuming carbohydrates and gluten in the form of grains. In evolutionary terms, we might as well have started yesterday. Just as our teeth are still built for tearing through meat and plants rather than processed flour, our digestive system has not yet fully adapted to adequately handle complex carbohydrates (the same goes for bovine lactose—milk) and lacks the ability to fully break down gluten molecules into its component amino acids.

For most people, this is no big deal. Even though the body doesn't fully process the gluten or lactose, no harm comes of it and we're no worse for wear. However for the one in seven Americans that suffers from a sensitivity to gluten, consuming it can lead to severe intestinal distress.

And even that discomfort is a walk in the park compared to what happens when someone who suffers from celiac disease—full blown gluten intolerance—eats the stuff. For them, any amount of the protein will trigger a massive autoimmune response within the gut as the body's defenses attack gliadin, a glycoprotein found in gluten. Unfortunately, this response also damages the villi of the small intestine (villi are the tiny structures that absorb nutrients from digesting food) which, if left untreated, can result in symptoms ranging from diarrhea, bloating, and abdominal pain to Irritable Bowel Syndrome (IBS), intestinal ulcers, intestinal cancer, and a host of nutrient deficiencies.

Once regarded as an rare digestive malady afflicting maybe 1 in 10,000 people worldwide, celiac disease is now considered one of the most common genetic disorders in the western world by the Center for Celiac Disease Research at the University of Maryland. According to a 2003 study published in the Archives of Internal Medicine celiac disease affects an estimated 1 in 133 people in America alone. Being a hereditary disorder, celiac disease runs in the family. Your chances of being diagnosed with it jump from 1 in 133 to 1 in 39 if a cousin, aunt, or uncle has it; 1 in 22 if a member of your immediate family does. Interestingly, celiac disease is far less common for Americans of African, Hispanic, and Asian descent—just 1 in 236. What's more, this disease has shown a marked propensity to occur in combination with lactose intolerance, as well as with type 1 diabetes.

Not Just Another Atkins Diet

Where there is a disease, there is a marketing opportunity. As celiac disease has gained notoriety, an increasing number of people have begun self-diagnosing as gluten sensitive, and consequently have adopted gluten-free lifestyles. It's also been touted as a new-age cure-all for a number of maladies including migraines and fibromyalgia, though there is little scientific data to support such claims. Going gluten-free, unless recommended by a physician, is a bad call according to Carol M. Shilson, executive director of the Center for Celiac Disease Research.

"There's no scientific evidence that it's better for you if you don't have celiac disease," Shilson told the Journal Sentinel. In fact, given the difficulty our bodies have digesting gluten as it is, "it's very hard to go back to a regular diet" after any prolonged lapse in its consumption. Heck, just eliminating gluten in the first place is a challenge given its ubiquitous use as a thickening agent. Consequently, much of the weight-loss benefit brought on by giving up gluten is due to the severely restrictive diet one must follow.

As Mark DeMeo, M.D., director of gastroenterology and nutrition at the Adult Celiac Disease Program at Rush University Medical Center in Chicago told Women's Health, "there's nothing magical about a gluten-free diet that's going to help you lose weight."

In fact, doing so can have the opposite effect. As Shelley Case, R.D., author of Gluten-Free Diet: A Comprehensive Resource Guide and a medical advisory board member for the Celiac Disease Foundation, explained to Women's Health, without gluten to hold baked goods together, food manufacturers will often use fats and sugar instead.

That means, Case continued, going gluten-free can potentially increase your risk of developing a micronutrient deficiency, especially if you rely on hyper-processed and fat/sugar-packed, packaged foods rather than the nutritionally stable and vitamin-packed fresh fruits, vegetables, and gluten-free grains (like quinoa) you should be eating anyway.

While there is no reliable means of testing for a gluten sensitivity, a simple blood test can determine whether or not someone suffers from celiac disease by identifying specific anti-gluten antibodies.

"Because it is a lifelong genetic disease that can be passed on, it's important to get a proper diagnosis," Shilson said. "And you have to be eating a regular diet (with gluten) or all the diagnostic tests will be rendered invalid." And even if the results come back positive, an intestinal biopsy may be first necessary to confirm it. So before you start stocking up on quinoa, make sure to talk to your doctor. And unless your body has a genuine sensitivity, think about limiting your glutens instead of replacing them with stuff that's even worse.

Sources:

http://en.wikipedia.org/wiki/Gluten
http://www.jsonline.com/features/food/92134239.html
http://www.massgeneral.org/children/services/treatmentprograms.aspx?id=1723
http://www.womenshealthmag.com/health/gluten-free-diet
http://www.mnn.com/food/healthy-eating/stories/what-is-gluten




For information on nutrition and losing weight, go to Rays Nutrition Center
or contact me at: raybarmore@gmail.com

Ray R Barmore
Health and Wellness Coach
The Herbal Guy
San Diego California
619-876-5273
Skype: barmore4


Other Blog:
God in America

Other Website:
Healthy Coffee, Tea and Hot Chocolate
Melaleuca
Winning at Sports Betting

Only Search This Blog