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What You Should Know About Pesticide Dangers

May 26, 2011 by  
Filed under Health & Fitness, Healthy Eating

Spring is around the corner, and the last thing I want to be thinking about is fruit salad dosed with pesticides or a lovely cut of meat on the grill, generously marinated in bug spray. Why, then, is my mind traveling so firmly in this direction? It’s almost 40 years after DDT was banned, and you would think that we’d now feel safe and comfortable in knowing that we are exposed to fewer toxic pesticides. Instead there’s evidence that we’re exposed to more.

 

About 70,000 different chemicals are used in the US today, making the chemical companies healthy even if we’re not. Although many of these chemicals are known carcinogens, there isn’t a lot of scientific research that has successfully proved a causal link to cancer — since, in addition to being expensive, this would take decades to prove… and, of course, no one will get rich from the results. Now new research is emerging that links pesticides to other known health problems, so I thought it was important to take a look at what we know — and what we don’t know — about the dangers of the pesticides used in growing the foods we eat.

 

So Many Chemicals

 

Fruits and vegetables receive the highest dosage of pesticides, so they’re more likely to be contaminated than other foods. For instance, conventional, non-organic growers can choose from as many as 62 different types of pesticide products to treat a crop of peaches (and each crop is typically treated with many different types)… 52 for blueberries… 42 for apples. And you may not realize that pesticides also have been found in meat and chicken, especially in the thighs.

 

I spoke to David Pimentel, PhD, a professor in the department of entomology, systematics and ecology at Cornell University about this trend. “About 70% of the foods that consumers buy have detectable levels of pesticide residues,” Dr. Pimentel told me.

 

Who Is Most at Risk?

 

Regarding the connection between cancer and pesticides, it is safe to say there’s good reason to worry about one. Noting that more research is needed on this important topic, Dr. Pimentel said. “There is no question that pesticides can cause cancer — the question is, how many people do they affect?” He noted that people with a genetic risk for cancer are quite likely the most vulnerable.

 

Meanwhile, researchers continue to uncover more ways that absorbing pesticides — by eating, touching or breathing them — is bad for our health… most especially for people who are already somewhat unhealthy due to poor lifestyle or other conditions that depress their immunity. Among the recent findings…
  • Parkinson’s disease. It appears that exposure to pesticides may trigger Parkinsons’s disease in genetically predisposed people. In a large 2006 study, researchers at Harvard School of Public Health found that participants exposed to pesticides (specifically, farmers, ranchers, fishermen and people who used pesticides in their homes or gardens) had a 70% higher incidence of Parkinson’s than those who weren’t exposed. The latest research, reported in February 2011 and conducted by the National Institute of Environmental Health Sciences, shows that people exposed in their professions to the pesticides paraquat or rotenone developed Parkinson’s approximately 2.5 times more often than people who were not exposed. Both pesticides cause cellular damage. Paraquat, in particular, is an extremely toxic substance originally developed as an herbicide.
  • Dementia. A study that collected data between 1997 and 2003 from French vineyard workers who spent at least two decades applying pesticides to plants or working in buildings where pesticides were housed showed that these workers scored low on a test of memory and recall. Researchers speculate that the changes demonstrated in the mental functioning of these people indicate that they may eventually develop a neurodegenerative disease, such as Alzheimer’s.
  • Infertility. In a 2008 review of studies on pesticide exposure, epidemiologists showed a decline in the semen quality and quantity of farm workers, which impaired male fertility by 40%. “Infertility, especially in men, is increasing in proportion to greater exposure to pesticides,” said Dr. Pimentel.
Kids Are Vulnerable

 

For children, there is bad news and good news. First of all, the problem of pesticide exposure is amplified compared with adults. “Kids are growing,” noted Dr. Pimentel. “In relation to body weight, they eat more than adults.” One study found that the urine of children eating a variety of conventional foods contained markers for organophosphates, a lethal group of pesticides used to disable the nervous system of pests that is, not incidentally, used to make the deadly nerve gas saran. However, the study also found that when the children’s diets were switched to only organic foods, the chemicals disappeared from their bodies within 36 hours.

 

What To Do

 

You may take some comfort — briefly — in knowing that, by Dr. Pimentel’s reckoning, newer pesticides are used at 1/1,000 of the amount as had been the case with DDT. But don’t be fooled by this simplistic comparison — ounce for ounce or pound for pound, “These newer materials are far more toxic, not just to pests but also to humans.”

 

Washing and peeling helps only if a chemical is on the outside of a fruit or vegetable, Dr. Pimentel noted — but the sad fact is that some of these toxins are taken up by the plant as it grows, meaning that the pesticides end up inside the flesh of the produce and therefore cannot be removed even with careful washing and peeling.

 

Foods least likely to have pesticide residue after washing include onions, avocados, corn, pineapples, mangoes, asparagus, sweet peas, kiwi, cabbage, eggplant, papaya, watermelon, broccoli, tomatoes and sweet potatoes. Some of these foods have thick skins that protect the food, while others face fewer threats from pests and so are sprayed less.

 

Avoiding the most contaminated types of fruits and vegetables or buying their organic counterparts reduces your pesticide exposure by 80%. The following foods, when grown conventionally, contain the most pesticide residue even after washing and/or peeling: Celery, peaches, strawberries, apples, blueberries, nectarines, bell peppers, spinach, kale, cherries, potatoes, grapes, carrots.

 

Bottom line: Choose carefully, buy organic when possible and be sure to wash fruits and vegetables thoroughly to be certain they’ll keep you healthy, not make you sick.

 

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Source(s): 

David Pimentel, PhD, professor, department of entomology, systematics and ecology, Cornell University, Ithaca, New York.

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A Cup of Hot Tea Is Good for You — Or Is It?

Sitting down with a nice cup of hot tea feels positively virtuous these days. Every time we glance up at the evening news, there’s been another scientist telling us how good tea is for our health — it’s those antioxidants! But now here comes another study with a decidedly different take — tea can be dangerous… and the danger is cancer.

 

Tea? Cancer? Really? The study being reported found that drinking hot tea seems to be the reason people in a certain area of northern Iran have one of the world’s highest rates of esophageal squamous cell carcinoma, an often deadly form of the disease. For the study, published in the online edition of BMJ (formerly the British Medical Journal), researchers interviewed 300 people with esophageal cancer and 571 of their healthy neighbors. All had similar backgrounds and habits — including regular tea drinking. The difference? Compared with those who drank their tea warm or lukewarm, people who drank their tea “very hot” were eight times as likely to develop cancer, and those who drank it “hot” were twice as likely. In other words, it seemed that the culprit might not be the tea — but the temperature. Well, I thought, maybe there’s hope yet for us tea drinkers.

 

The Clearest Risk Factor

 

I called the study author, Farhad Islami, MD, PhD, at the International Agency for Research on Cancer in Lyon, France, to learn more. He let me know that this particular group of Iranians were at otherwise low risk for esophageal squamous cell cancer — very few smoked and most did not drink alcohol, two very significant risk factors for that disease. The study showed that tea drinking was a common habit among all subpopulations in the region (a total of 48,500 people) and that approximately 25% of the people there drink their tea at the hottest level — about 149°F or higher. This was verified later when researchers actually measured the temperature. (“Hot” was considered to be 149°F to 158°F… and “very hot,” above 158°F.) Although researchers aren’t sure why this is a problem, they believe that the heat may trigger inflammatory processes that stimulate potentially carcinogenic compounds in the esophageal mucous membranes. Perhaps even more likely, Dr. Islami says, is the fact that high heat can damage the esophageal lining, making it less able to protect itself against carcinogens coming in from the outside world.

 

Okay Then, What About Coffee?

 

America, of course, is a land of coffee drinkers, many of whom like their brew piping hot. Based on what the tea study tells us, is there reason to worry about coffee, too? Dr. Islami says it is important to note that the type of esophageal cancer most common in the West — adenocarcinoma of the esophagus — is not the same as squamous cell carcinoma, which is the most common type of esophageal cancer in Iran and worldwide. Furthermore, while a few reports suggest that other hot beverages, including coffee, might increase esophageal cancer risk, there is little research on hot coffee specifically. So we do need more studies. In the meantime, Dr. Islami speaks to common sense. “If the issue is damage to the esophageal lining, it would be safer if people do not drink very hot coffee or tea,” he says. It takes only a few minutes or so to allow your hot beverage of choice — coffee or tea — to cool to 140°F and into the safety zone.

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Source(s): 

Farhad Islami, MD, PhD, research fellow, International Agency for Research on Cancer, Lyon, France.

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You Have H. Pylori — Now What?

You’ve been bothered by chronic indigestion, perhaps leading your doctor to order an endoscopy so he/she could look down your esophagus and into your stomach with a camera, and, give you some tests. The finding? For many, it’s that their digestive system is harboring the intestinal bacteria H. pylori… now what?

 

In 1982, when H. pylori was discovered to be at the root of stomach ulcers, the medical community celebrated, immediately deciding that the news meant ulcers could be cured by an intense course of antibiotics to kill off all those nasty bacteria. But now we know that a wise treatment path for people with H. pylori is not so straightforward. Yes, the bacteria are linked to a host of gastrointestinal (GI) problems, including ulcers and even gastric cancer. But many of us carry H. pylori around in our systems without ill effects, and doctors have found that eliminating it entirely is associated with other problems, including esophageal cancer.

 

Friend or Foe?

 

Should we kill H. pylori every time we detect it? Probably not, says Eric Yarnell, ND, a clinical supervisor at Bastyr University’s Center for Natural Health in Seattle. When he sees patients with H. pylori-related complaints, including inflammation, pain and other symptoms, his goal is to restore comfort by replenishing the stomach’s natural defenses against the bacteria overgrowth that has thrown the system out of balance… but he aims for full elimination of the particular bacterium itself only in cases of recurrent illness or associated cancers.

 

Should You Follow Doctors’ Orders?

 

Conventional medical treatment of H. pylori infection uses a 14-day course of an antibiotic (usually clarithromycin or amoxicillin) to remove H. pylori from the stomach… as well as the antimicrobial metronidazole (Flagyl)… and either a bismuth-salt preparation to blunt inflammation and soothe the tissue or (more likely) an antacid proton pump inhibitor (PPI), such as esomeprazole (Nexium), omeprazole (Prilosec) or lansoprazole (Prevacid). If this triple therapy fails to make your symptoms go away, your doctor will next try instead “quadruple therapy” — tetracycline, metronidazole, a PPI and the bismuth compound for an additional 14 days. Many doctors also will prescribe the PPIs even longer, up to an additional three weeks.

 

Daily Health News contributing editor Andrew L. Rubman, ND, disagrees with this approach. He warns that these regimens bring significant side effects. If you take a PPI for longer than two weeks, you reduce your stomach’s ability to produce adequate amounts of acid to digest food and also reduce its innate ability to protect you from dangerous pathogens. Antibiotics indiscriminately suppress many beneficial bacteria as well as the ones making you sick and as a result can lead to the emergence of antibiotic-resistant strains of H. pylori, paradoxically placing you at greater risk for digestive disorders.

 

A Better Way: Natural Therapies

 

Rather than attempting to eradicate H. pylori, some doctors may seek to get it back in “balance” by first calming irritation and inflammation and then restoring proper stomach function, including adequate acid production to stabilize H. pylori and prevent its overgrowth.

 

Dr. Rubman says that this safe and natural approach may include…
  • Bismuth-based therapy. Bismuth salts, originally believed to simply coat ulcers and physically block erosive stomach acid, now are known to directly attack and impair H. pylori.
  • Digestive enzymes. Once irritation is resolved, hydrochloric acid (usually the supplement betaine hydrochloride) helps reestablish efficient acid production, which may have been interrupted by the infection but is necessary for normal digestion.
  • Manuka honey. Evidence supporting the use of this New Zealand honey is largely anecdotal, but you may find that taking some before meals and before bed, helps combat H. pylori. Discuss with your doctor how much to take if you want to try this therapy.
  • Mastic gum. This natural resin from the sap of the mastic tree (Pistacia lentiscus), which grows mainly on the Greek island of Chios, inhibits H. pylori growth, according to a study in The New England Journal of Medicine. Capsules can be found at iHerb.com and in health-food stores.
  • Broccoli sprouts. A small Japanese trial suggests that broccoli sprouts activate protective enzymes. Unlike mature heads, the sprouts contain high levels of sulforaphane, a potent natural weapon against H. pylori colonization. These can be eaten in salads or on sandwiches as a way to help keep H. pylori in check. (See Daily Health News, September 3, 2009, for more on broccoli sprouts.)
  • Bovine lactoferrin. Studies show that this protein from cows (consumed as a powder added to shakes and smoothies) improves the effectiveness of other therapies against H. pylori. It can be purchased at iHerb.com and in some health-food stores.
Rather than eradicating H. pylori entirely, a better approach is to tame the bacteria so it can play a healthful, not harmful, role in your digestive system, Dr. Rubman said. Seek immediate medical attention if you experience these symptoms: Vomit blood or what looks like coffee grounds… having bloody or tarry black stools… or experiencing sudden, severe and persistent abdominal pain.

 

While you may not be able to eliminate exposure to H. pylori, Dr. Rubman points out that people who maintain a healthy lifestyle — a diet of nutrient-rich whole foods, no smoking, regular exercise, alcohol in moderation only, etc. — are more likely to have robust immune systems and less likely to develop active infections or discomfort even if H. pylori is in their systems.

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Source(s): 

Andrew L. Rubman, ND, founder and director, Southbury Clinic for Traditional Medicines, Southbury, Connecticut. www.SouthburyClinic.com.

 

Eric Yarnell, ND, clinical supervisor, Bastyr Center for Natural Health, core faculty member, Bastyr University, Seattle. Dr. Yarnell is currently president of the Botanical Medicine Academy in Seattle, chief financial officer of Healing Mountain Publishing and vice president of Heron Botanicals, Inc. He has published and coauthored numerous books and articles.
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Cooking the Health Out of Your Food?

April 6, 2010 by  
Filed under Health & Fitness, Healthy Eating

“You are what you eat” has been a catch phrase since I was a child… but new research from Mount Sinai School of Medicine in New York City suggests it’s not only what you eat but how hot you cook it that matters. Subjecting certain foods to prolonged high heat — not only for frying, but also for grilling, roasting, broiling or baking — creates toxic, inflammatory particles. These, in turn, cause the oxidation and inflammation in the body that are associated with such diseases as diabetes, heart disease, kidney disease, Alzheimer’s disease and others.

Called advanced glycation end products (AGEs), these toxic particles adhere to the arteries, kidneys, brain and joints, where they heighten inflammation. Our typical Western diet, heavy on meat and processed foods and light on plant-based foods, is believed by many scientists to contain at least three times more AGEs than is considered safe.

Good News from this Study

It’s always exciting when research reveals a way to avoid a common health problem — and this new study does just that. According to the researchers, you can achieve dramatic and quick benefit — within just days — by reducing your intake of AGE-containing foods. Doing this decreases the body’s level of inflammation and helps restore its defenses against disease.

The study divided 350-plus participants into three groups — healthy adults between the ages of 18 and 45… an older healthy group, all past age 60… and nine patients with chronic kidney disease (the kidneys are believed to be especially sensitive to AGEs). Participants were randomly assigned to eat either a regular Western diet in which foods were grilled, fried or baked (in other words, loaded with AGEs) or what the researchers called “the AGE-less diet,” which included the same foods, only poached, boiled or steamed so that they contained only about half as many AGEs. The two diets were similar in calories and nutrients. After four months, all participants on the AGE-less diet showed a 60% decline in blood levels of AGEs as well as in several other inflammation markers. According to the study’s lead author, Helen Vlassara, MD, professor and director of the division of experimental diabetes and aging at Mount Sinai, this indicates that your actual chronological age may not be as significant a factor in aging and health as the AGEs in your food. A finding that’s even more impressive: The patients with kidney disease had a similarly substantial reduction after just one month on the AGE-less diet.

The Heat Is On…

I asked Dr. Vlassara to explain to me how the AGEs get into foods. They develop as a chemical reaction when heat is combined with protein and different sugars, she said — and she noted that meat-rich diets are especially bad, since meats contain high levels of easily oxidizable fat and protein.

There is a third point that is crucial to understand — which is that removing all visible fat when you cook meats doesn’t solve the problem. All cells in meats contain not only fat and proteins, but also sugars — some more reactive than others. Therefore, exposure to high heat will still cause AGEs to form in meat at much higher levels than in starch even if you cut away the visible fat. In fact, Dr. Vlassara told me that when you see meat brown while cooking, what you’re witnessing is the rapid reaction among proteins, fats and those reactive sugars to the heat. And, since they are also animal products, when they are cooked, full-fat milk and cheese also develop high levels of AGEs.

Even worse, manufacturers often add AGE-containing flavor-enhancers or coloring (such as caramel) to processed and packaged foods. You may be surprised to learn that a major offender in this category is dark-colored soda. Generally speaking, fast foods and processed/packaged foods also tend to be high in AGEs, which gives us yet another reason to avoid them.

Avoiding AGEs

The good news is, it’s not all that difficult to reduce the amount of AGEs in your diet, Dr. Vlassara said. It just requires making some modest changes in the way you prepare food. Her suggestions…

Meats

  • Marinate in an acid-based mixture (such as vinegar or lemon juice) before cooking, which helps reduce the amount of AGEs produced by heat. Note: Avoid marinades containing sugar, such as most barbecue and teriyaki sauces.
  • Aim to serve meats rare to medium rare if possible — for instance, cooking pork to just beyond pink. This is admittedly a balancing act — you want to cook as briefly as possible to minimize development of AGEs, but undercooking carries its own set of dangers.
  • To achieve a brown finish to meats, Dr. Vlassara suggests cooking on your stovetop with a cover to conserve moisture, and then placing the meat under the broiler for just a few minutes at the end.
  • Use as little fat as possible — as Dr. Vlassara points out, even healthy olive oil oxidizes at high heat.
  • Water inhibits the formation of AGEs, so poaching, stewing, steaming or even boiling proteins is best (including fish and eggs).

Dairy and Other Foods

  • Avoid bringing dairy products to high temperatures — for instance, when using milk in sauces or when melting cheese under a broiler. Dr. Vlassara said the less time these foods cook, the better. She added that lower temperatures are preferable, as is increased distance from the heat source.
  • Brief microwaving produces a lower level of AGEs than broiling, grilling or stovetop cooking, so this is a great way to cook liquids.
  • Plant-based proteins also create dangerous levels of AGEs when subject to very high heat for long periods — so be aware that there are dangers to even seemingly healthy foods like broiled tofu or roasted nuts.

what about restaurant food?

Fortunately, the increasingly popular Mediterranean Diet uses lots of foods with low AGEs (including fruits, vegetables, beans and whole grains), so it once again ranks among the healthiest ways that you can eat. This not only provides a good framework for eating at home, it also suggests a wide variety of delicious, healthful, low-AGE dishes that you can order in restaurants. But Dr. Vlassara noted that cooking even these foods at high heat with low hydration is problematic, so there’s no way around it — cooking at high temperatures is not so hot for your health.

Source(s):

Helen Vlassara, MD, is professor of geriatrics, medicine and molecular medicine, director, division of experimental diabetes and aging, department of geriatric and palliative medicine, Mount Sinai School of Medicine, New York City.

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3 Easy Tips to Keep Your Skin Healthy

March 25, 2009 by  
Filed under Health & Fitness, Healthy Eating

There are plenty of articles out there about what to do to make your skin look young again. But what if you still have it? How do young women keep their skin looking the way it is now well into the future? The following five easy tips can help you keep your youthful glow.

1. Use Sunscreen, Never Tan. It’s hard for young women to resist the warm glow that a few hours of tanning can bring. But the damage that it does beneath the surface accumulates over time–ultimately leaving the skin dull and thin. By the time premature aging becomes evident, significant amounts of damage has taken place below the surface. Rather than a week of beauty, think of long-term beauty. If you really want to give your skin an added glow, try shimmering lotions and makeups. Or, for a darker look, try artificial tanners (but be careful, they can sometimes leave you looking more orange than tan). Don’t forget that you can experience the damaging effects of the sun even if you aren’t deliberately trying to tan. Make applying sunscreen part of your daily routine. Purchasing moisturizers with sunscreen already in them can help. Remember, only 15 minutes of sun exposure each day provides you with the vitamin D you need to stay healthy.

2. Eat the Right Foods. You’ve always heard the phrase “You are what you eat” and that is exactly right when talking about your skin! What you eat is not just relevant to your weight. It also affects the health of your skin. Clinical studies have shown that eating diets rich in fatty acids and antioxidants can help skin retain its youthful appearance. Foods good for your skin include fish, vegetables, whole grains and fruits including all kinds of berries. Antioxidants in the diet may help reduce the appearance of age
spots. Fatty acids are one of the components of metabolic processes within the body that are also integral to the maintenance of healthy skin. Making these foods a part of your daily diet can benefit you for years to come.

3. Clean and Moisturize! Don’t neglect your skin. For normal skin, a gentle daily cleanser is all you need. Using a washcloth needlessly pulls and tears at the skin. Cleanse your skin with your fingers using gentle, circular motions, paying particular attention not to stretch the delicate eye area. Moisturizing the skin is also important to protect it from the effects of the elements including wind, pollution, and sun (if it is a sunscreen moisturizure). Not only does it protect the skin from the outside, but also helps it to retain its natural moisture from the inside. Keep in mind that spending a lot of money is not necessary. If your skin is oily or you have a problem with acne, use products designed specifically for your skin type. You may want to consult a dermatologist to seek prescription treatments. Never attempt to pop your pimples. This will increase the size of your pores and possibly cause scaring.

Essentially, if your skin is young, value it! Taking simple precautionary steps can help keep it that way. Think of the benefits of having healthy skin in the future. Use sunscreen, eat healthy, and following a daily skin regimine. You don’t need alot of money to keep your skin healthy. All it takes is common sense and good lifestyles choices.

For more info on Healthy Eating visit:
http://www.bruisedonion.com/guide/healthy%20eating/

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