Is Organic Fruit Grown with Antibiotics?

When you cough up the cash for organic produce, you expect that it’s all natural. In reality, certain organic fruit farmers use antibiotics just like their conventional counterparts—but not for long: The National Organic Standards Board (NOSB) recently voted to end an exemption that allows organic apple and pear farmers to use the antibiotic oxytetracycline on their orchards.

The USDA organic seal is typically reserved for food that’s raised or grown without synthetic fertilizers and pesticides, says Sam Jones-Ellard, a spokesperson for the USDA. But currently, apple and pear growers are permitted to use oxytetracycline as a last line of defense in fighting fire blight, a bacterial plant infection that eats away at trees and can easily wipe out a whole orchard. Because it can take years to grow an apple or pear tree that produces fruit, untreated fire blight can put an organic farm out of business.

The USDA expected growers to come up with a natural way to curb fire blight by 2014, when the exemption implemented in 2002 is scheduled to expire. Unfortunately, experts haven’t found a fire blight cure yet. So while the upcoming ban is good news for organic fruit eaters who want to get what they pay for (naturally-grown fruit), NOSB’s decision puts pressure on growers to find a truly organic solution, fast.

In the meantime, there’s no need to panic about eating the teensy amount of oxytetracycline found in some organically grown apples and pears, says Jones-Ellard, since these fruits contain at least 50,000 times less oxytetracycline than what you’d get if you were on a typical antibiotic prescription. So go ahead and crunch away on your organic apples and pears—with the knowledge that antibiotic-free fruit is coming your way soon.

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Do You Really Need Antibiotics For That?

You pop vitamin C tablets and chug orange juice when you feel a cold coming on—so what’s the big deal if your doctor prescribes antibiotics to stop a sniffle, cough, or sneeze from getting worse? Unfortunately, it doesn’t work that way. In fact, most of the preventative antibiotics prescribed for colds or viruses aren’t necessary—and therefore aren’t beneficial to people who take them, according to an observational study recently published in the journal Annals of Family Medicine.

In the study, researchers reviewed the medical records of 814,283 patients who suffered from a cold, laryngitis, bronchitis, or another virus (the medical term to describe these: acute nonspecific respiratory infections, aka ARIs). Even though antibiotics are designed to treat bacterial infections and have no effect on ARIs, 65 percent of the patients in the study were prescribed antibiotics to protect the patient in the event of a misdiagnosis and/or to prevent the virus from turning into something more serious, like pneumonia.

Hardly any of the pill-poppers suffered side effects from the antibiotics, and they were slightly less likely to develop pneumonia. However, only one case of pneumonia was prevented for every 12,255 patients who took antibiotics. That’s a whole lot of unnecessary prescriptions that experts say could have scary long-term consequences.

“The more antibiotics people take, the faster the bacteria in and around us develop resistance,” says study co-author Sharon Meropol, MD, PhD, assistant professor of epidemiology at Case Western Reserve University School of Medicine. Translation: When you get sick in the future, there may not be any antibiotics available that work.

That doesn’t mean you should swear off antibiotics altogether; the meds can reduce the time it takes to recover from a serious bacterial infection, says Robert Klein, MD, chief of the Division of Infectious Diseases at St. Luke’s and Roosevelt Hospitals.

If your doctor recommends antibiotics, it’s generally a good idea to ask if why—and if they’re really necessary, says Klein. If they are, make sure to follow your doctor’s instructions for taking the antibiotics to the letter to maximize effectiveness. Your health—both current and future—could depend on it.

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ALERT: Antibiotics Won’t Fix This Common Condition

Your family doctor knows best, right? Not always. Many physicians routinely prescribe antibiotics for a common ailment that cannot effectively be wiped out with drugs. And dishing out these antibiotics doesn’t just threaten patients with side effects, but also leads to the creation of hard-to-kill superbugs, dangerous bacteria strains that don’t even flinch when antibiotics enter a patient’s system.

In an attempt to preserve the effectiveness of antibiotics and to provide better treatment to patients, experts now recommend doctors drastically cut back on prescribing antibiotics for sinus infections.

“Overuse of antibiotics, especially if inappropriate, leads to the emergence of superbugs and drug resistance, which sets up a vicious cycle leading to the use of more potent and broad-spectrum antibiotics,” explains Anthony W. Chow, MD, professor emeritus of infectious diseases at the University of British Columbia in Vancouver. “Inappropriate antibiotics also lead to unnecessary adverse effects and add to the cost of healthcare.”

Sinus infections most often occur when people are getting over a cold or other respiratory infection, but environmental contaminants and seasonal allergies can also lead to the uncomfortable facial pressure associated with these infections.

Roughly 15 percent of the population suffers from at least one sinus infection a year. Although more than 90 percent of cases are caused by a virus—meaning antibiotics will do nothing to treat the infection—doctors often write out prescriptions for antibiotics. In fact, sinus infections are the fifth-leading cause of prescribing antibiotics, despite the fact that only about 2 percent of cases can be effectively treated with the drugs.

In the rare case that a sinus infection is caused by bacteria, the guidelines, issued by an Infectious Diseases Society of America panel chaired by Dr. Chow, recommend that doctors prescribe amoxicillin containing clavulanate, an enzyme-inhibitor that helps overcome antibiotic resistance. Doctors should avoid prescribing azithromycin and clarithromycin because there are growing drug-resistance problems with those antibiotics.

How to deal with a sinus infection:

• Gauge symptoms. Most people don’t need to see a doctor for a sinus infection. However, Dr. Chow outlines the symptoms of a bacterial sinus infection that does warrant prompt attention and possibly antibiotics:

1. Symptoms that last for 10 or more days and are not improving, or severe symptoms accompanied by a fever of 102 degrees or higher

2. Facial pain and green nasal discharge that lasts for 3 or 4 days

3. Double sickening—symptoms that seem to improve after 5 to 7 days, but then return and worsen.

There are exceptions to these rules, though. Very young or old patients, or people with underlying medical issues like cancer, diabetes, chronic heart, lung, or kidney ailments, or people who have recently been hospitalized should see a doctor when symptoms first surface, since they are more susceptible to infection, Dr. Chow notes.

• Reach for the Neti. Nasal irrigation sprays, drops, or liquids using a sterile solution can help relieve symptoms, although children may not cooperate with the treatment.

• Avoid certain over-the-counter meds. Decongestants and antihistamines don’t help alleviate bacterial or viral sinus infections and could actually make symptoms worse.

• Evict sinus irritators in the home. Avoid air fresheners, scented candles, and gel plug-ins. The fragrance chemicals they contain can aggravate allergies, which could in turn spark a sinus infection.

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How Antibiotics Affect Your Weight

It’s often said that there’s no miracle drug for weight loss. However, the same kind of medicine used to treat ear infections and strep throat could also be effective in helping us shed unwanted weight, according to a new University of Chicago study that examined how the immune system, gastrointestinal bacteria, and diet interact. The results suggest that weight gain may be linked to the types of bacteria present in the gut, meaning that bacteria-slaying antibiotics may someday join diet and exercise in the fight against obesity, according to study researcher Vaibhav Upadhyay of the University of Chicago MD-Ph.D. program.

In the study, normal mice and mice with a genetic defect that discourages the normal growth of bacteria in the gut were put on nine-week, high-fat diets. The normal mice gained weight, while the genetically-defective mice remained steady on the scale. Why? It seems that a particular kind or ratio of bacteria present in the tummies of normal mice (and people) help extract calories from food, which can then be stored as fat. Without this bacteria balance (which researchers have yet to identify) fewer calories can be absorbed and stored, prohibiting even a high-fat diet from causing weight gain.

How does bacteria get in the gut, in the first place?
Our immune systems are responsible for encouraging the growth of some kinds of bacteria (i.e., the kind that promotes weight gain) in the stomach in a process regulated by lymphotoxin, a molecule naturally produced by our bodies. We also eat some bacteria: Probiotics, a.k.a. healthy bacteria, are becoming an increasingly popular addition to supplements, as well as foods like probiotic yogurt.

Do antibiotics get rid of the bacteria that causes weight gain, and spur weight loss?
Because antibiotics can simultaneously inhibit the growth of some bacteria while promoting the growth of other bacteria, it’s believed antibiotics can be tailored to promote weight loss, Upadhyay says. Still, there are more than 500 different strains of bacteria present in the bowel, and the precise ones that inhibit weight gain need to be better established before they can be harnessed to fight fat. “Weight gain or loss is about fostering the right mix of bacteria in the gut,” he says, which explains why low-dose antibiotics have long been used in the livestock industry to make animals gain weight. (Discover one common cause of weight gain.)

Will eating probiotic foods make you fat?
Yes, no, maybe so. “It’s unclear if there is any correlation between the organisms [food manufacturers] add to their products and weight one way or another,” Upadhyay says. Again, more research is needed on the exact bacteria that are in play in the gut during both weight loss and weight gain. Once that relationship is established, probiotics (healthy bacteria) and prebiotics (their food) could be harnessed to fight fat, Upadhyay says.

Should you keep taking probiotics?
It seems like just about everybody nowadays is taking probiotics—global sales of both probiotic supplements and foods that contain probiotics are expected to reach $ 31.1 billion by 2015, according to BCC Research. It’s for good reason: Even if they aren’t designed to aid in weight loss (yet), they still do a body good. Healthy bacteria in the gut provide enzymes that are necessary for the body to absorb many vitamins and minerals, and help you get the biggest nutritional bang per bite, he says. So, yes, keep you should keep the probiotics coming.

photo: iStockphoto/Thinkstock

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