Posts filed under 'Science'

EPA is reviewing the safety of some “spot-on” flea and tick treatments

We just saw a troublesome report about liquid flea and tick treatments that you apply between the shoulderblades of your pet.

The active ingredients in many of these treatments are basically pesticides – insecticides that kill fleas and ticks.

http://static.howstuffworks.com/gif/flea-1.jpg

Following a recent increase in reports of adverse reactions among pets, the Environmental Protection Agency has intensified its scrutiny of the products, warning pet owners that the treatments may have serious, even fatal, side effects.

Cats are particularly sensitive to an insecticide called permethrin, the active ingredient in some spot-on flea and tick treatments. According to a study published online in The Veterinary Journal, cats overdosed with permethrin insecticides can suffer tremors, seizures, excess salivation, vomiting, loss of appetite and death.

The E.P.A. is investigating a large number of anecdotal reports involving both cats and dogs who received spot-on treatments and suffered problems like skin irritations, hair loss and tremors.

At this point, the E.P.A. has not recommended a recall.  However, the E.P.A. analysis may lead to changes in regulations.  The results of the E.P.A. review are expected to be announced by October.

According to E.P.A. spokesman Dale Kemery,“It could be that we’ll require changes in labeling or formulaic changes. And it could go as far as canceling a product.”

Add comment June 19, 2009

This summer, get your Vitamin D while you walk your dog

If you follow our blog, you are aware that, just like the dogs we love, we often stray outside the boundaries of all things dog.  We spend a lot of time following health, science, food safety, the environment, and other areas of interest to us (and, we hope, to you).  And where there’s a connection to the health and happiness of your dog, we strive to point it out.

This seems to be the week of Vitamin D.  There’s all sorts of news out there about new research indicating that Vitamin D does a lot more than help build strong bones.

Vitamin D’s known benefits include helping cells absorb calcium for bone health, protecting against cancer, artery disease, and tuberculosis.  In fact, Vitamin D regulates 1,000 genes, and is believed to have a role in regulating the immune system.

Now a study by David Lee and colleagues at the University of Manchester in the UK supports earlier evidence that vitamin D may help older people stay mentally fit.

This benefit has been reported in the past, but earlier studies were less conclusive.   The bigger picture is that we are always discovering more and more benefits of vitamins, minerals, elements, and micronutrients.  The sunshine vitamin is increasingly seen as vital to health.  And there is general agreement that Vitamin D is also essential to the health of your pet.

But another report from Reuters suggests that more Americans are not getting enough Vitamin D, according to U.S. researchers.  It appears that 3 out of 4 Americans aren’t getting enough Vitamin D these days.  That’s up from 1 out of 2 twenty years ago.

Getting enough Vitamin D can be simple: spend 10 minutes in the sun with legs and arms exposed.  It is the ultraviolet rays of the sun that stimulate the production of vital Vitamin D through the body’s own natural processes.

“But people’s habits have changed … they are less active and outdoors less, and also protecting their skin from the sun because of skin cancer risk,” said Dr. Adit Ginde, who with colleagues did the study published in the Archives of Internal Medicine.

So we need to be aware that some sunshine is essential, but too much can be dangerous.  And then take appropriate and reasonable precautions to balance the two out.

If you are familiar with Dog-Wa, then you know we are big fans of a balanced approach to health by getting essential nutrition the natural way.  Dog-Wa provides an abundance of naturally occurring vitamins, minerals, compounds, and other elements through cold-pressed vegetable matter.  We believe that whole foods are and always will be the preferred way to get nutrition.

So in that spirit, we suggest that it might be time to revisit the idea of getting yourself and your dog some vitamin D the old-fashioned way, from sunshine.

It’s easy to do.   About three times a week, when you are walking your dog, spend 10 minutes in the sun with legs and arms exposed.  That’s enough.  If you’re going to be out longer, then cover up or find some shade.  A hat, sunglasses, and protection for your face are always a good idea.  Ensure that you and your pet are adequately hydrated before, during, and after time spent outdoors in the heat and the light.

At the same time, be aware that the potentially harmful effects of sunshine include increased risk for cancer (melanoma) and wrinkling.  So too much sun is not a good thing.  Watch for abnormal growths, rough patches, discoloration, and moles on your skin and your pet’s skin.

As with all things, use common sense.

Update: May 21, 2009
Here’s an article from the Boston Globe with more Vitamin D tips.

1 comment May 21, 2009

The dangers of frozen foods – are they safe for you and your pets?

We remember a time when food poisoning was something you only thought about with cream pies or perhaps seafood in cream sauce.  No longer.  Now we’re seeing food poisoning from spinach, tomatoes, cantaloupes, peanuts, pistachios, and even white pepper.  This is in addition to problems with beef, pork, poultry – you name it.

Yet many dog lovers today are turning to raw foods for the health and happiness of their pets.  We are passionate about the benefits of fresh, raw foods for both humans and animals.  But we know that feeding raw foods also raises some serious health concerns.  So we read with interest this piece in the May 14 New York Times on the subject of food safety and frozen foods.

If you want safer food, you’ll have to take care of that yourself

The gist of the article is that sickness caused by frozen foods is on the rise in the United States.  This reflects a larger trend:  American food is actually getting more dangerous, not safer.  As a result, food manufacturers are shifting the burden of ensuring food safety onto the consumer.  And the way they want you to ensure the safety of frozen foods is by really cooking them.  Some even recommend that you stick with conventional ovens.  New directions urge the consumer to avoid the use of microwaves with frozen foods, since microwaves do not guarantee a consistent internal temperature sufficient to kill contaminants.

The article points out that one manufacturer tried pre-cooking the vegetables they intended to include in their pot pies to a safe temperature before they assembled the pot pies.  The result?  The vegetables were reduced to mush.  The article implies that this was considered a “palatability” issue.  In other words, consumers didn’t like the mushy texture.  What it does not mention is the nutrient loss from cooking foods at such high temperatures.

Why is this a problem?  And what can be done to ensure safety in your food and your pet’s food?

There are actually a few things going on here.

Food poisoning, which can result in sickness and death, is caused by pathogens.  Pathogens, more commonly known as infectious agents or germs, are biological agents that cause disease or illness to their host.  Our bodies, and your pet’s body, contain many natural defenses to these harmful pathogens.  The immune system and “good” intestinal flora help to combat pathogens when the body is functioning at peak performance.  But when the health of the host, whether human or animal, is not functioning at optimal levels, pathogens have the opportunity to spread and result in infection.  New and more deadly pathogens are also appearing, which are less responsive to the immune systems of our bodies and our pet’s bodies.

What is causing the spread of food-borne illness?

Major contributors to the spread of pathogens include soil contamination and the indiscriminate use of antibiotics.

Pathogens contaminate the soil in which grains, fruits, nuts, and vegetables grow.  The pathogens thus have the opportunity to infect the growing plants systemically.   This accounts in part for the recent recalls of spinach and tomatoes, which have not historically offered a heightened risk for contamination with harmful pathogens.

This is a problem everywhere, but particularly in many foreign countries that provide raw food materials to the United States.  The reason why foreign food products are often cheaper, and therefore attractive to food manufacturers, is in part due to the fact that foreign producers are not required to meet the same standards applicable to food produced in the United States.  Soil contamination, in particular, is a problem.  Yet the FDA inspects less than 1% of the foreign food coming into the United States.

The prevalence of antibiotics is also a culprit.

When used with discretion, antibiotics can give results that are almost miraculous.  They can stem the spread of infection that could otherwise become life threatening.  We tend to forget the dangers of infection in today’s world, because modern drugs and hygienic practices have changed the way we think.  My grandmother, who is 97, remembers President Coolidge’s son.  The little boy’s shoe rubbed his heel until he got a blood blister.  The blister became infected, there was little to be done, and the boy finally died of infection.  That kind of thing seems almost unbelievable to us today, but the era when death by infection was highly common was really not so long ago.

So antibiotics are very effective in killing pathogens.  However, the use of these potent antibiotics has not been as controlled as it might be, and that has led to a new set of problems.  One result of antibiotics is to kill the “good bacteria” in our bodies that help us to fight off the effects of pathogens.  Another problem is that the use of antibiotics leads to mutation in the pathogens.  So newer and more dangerous strains of pathogens result from the use of antibiotics.  This might not seem like too much of a problem.  But consider this:  in the United States, 70% of the antibiotics that are consumed are fed to farm animals.

A bill has been proposed in the US Congress to ban the use of antibiotics for healthy livestock.  And frankly, the arguments are persuasive on both sides.  On the one hand, such a ban might help inhibit the development of newer and more deadly strains of pathogens.  We would all be ingesting fewer antibiotics, thus preserving both beneficial intestinal flora and saving antibiotics for when we really need them.

On the other hand, raising livestock is now big business.  That means that animals are kept in crowded conditions, exposed to illness from the thousands of other animals with them, and exposed to environmental contamination from the lots where they are kept.  The proposed ban would forbid feeding antibiotics to healthy animals.  But that might lead to far more infection in animals that were not given antibiotics for preventive purposes.  So the result might be that there would always be enough sick animals to require the use of antibiotics in any case.  We wonder how much difference there would be in the long run.

So how do I incorporate safe, fresh, and raw foods into my diet, and into my pet’s diet?

Free-range? Antibiotic- and hormone-free?

You might think that free-range, antibiotic- and hormone-free  meat is the way to go.  Generally speaking, we agree.  But here’s something else to consider:  a study published in the journal Foodborne Pathogens and Disease sampled more than 600 pigs in North Carolina, Ohio, and Wisconsin.  The study discovered not only higher rates of salmonella in free-range pigs (54 percent versus 39 percent) but also greater levels of the pathogen toxoplasma (6.8 percent versus 1.1 percent) and, most alarming, two free-range pigs that carried trichinosis, which can be deadly.  None of the confined pigs were infected with trichinosis.

The reason is because free-range animals are exposed to more pathogens when they are “ranging.”  Just a little time outdoors increases pigs’ interaction with rats, birds, and other wildlife and even with domesticated cats, which can carry transmittable diseases, as well as contact with moist soil, where pathogens find an environment conducive to growth.  If those free-range animals are also antibiotic free, the opportunities for infection multiply.

Made in the USA?

Another idea is to buy foods grown and made in the United States.  We agree.  However, this is not the magic solution to the entire problem.  The reality is that most food manufacturers and distributors cannot identify the suppliers or recipients of their products despite federal rules that require them to do so.  And many food manufacturers admit that it is almost impossible to know the origin of the ingredients they use, since many food products include dozens of ingredients.  So buying products made in trusted countries is a big help, but it isn’t the single answer.

Are organics safer?

One of the most shocking aspects about the recent peanut recalls is that the Georgia plant that produced the contaminated peanut products was actually certified organic.  If this were a single case, then we might be inclined to give organics the benefit of the doubt.  But in fact a sister plant of the Georgia peanut processor, located in Texas, was also implicated in the peanut recall.  And it, too, was an organic facility.  This is not to say that all organic food is unsafe.  But it does mean that organic doesn’t give you the guarantees you might be looking for.  And of course, organic is expensive.

It’s hard for consumers AND manufacturers to know what to do

As consumers and dog lovers, we believe in the benefits of fresh, raw foods.  But after everything we’ve told you in this post, you may be thinking that there is no way to have a fresh, raw product that is actually safe.  As manufacturers of a dog food product, we faced many of these problems when we were researching and developing Dog-Wa.  And believe us when we tell you, it’s easier to figure out the potential problems than it is to solve them.

Here’s what we did when we developed Dog-Wa

Our solution was to take a “belt and suspenders” approach.  We opted to do all we could to ensure the safety, purity, and consistency of Dog-Wa by incorporating as many safeguards as possible.

Since Dog-Wa is a vegetarian product, we did not have to confront the issues around meats.  But we did have to think long and hard about the other issues.

We started with the best ingredients

That’s why our herbs are pesticide-free and not genetically modified.  We sourced our herbs in the United States, focusing on reputable suppliers who farm sustainably and maintain records that are compliant with state and federal guidelines, as well as recommended manufacturing processes.  We selected only Human-Food-Grade ingredients that are grown and made in the United States.  We consulted regulations of the Food and Drug Administration, as well as expert food scientists, to ensure compliance and consider all our options.  We decided not to manufacture in a pet food plant.  Instead, we chose an FDA registered, pharmaceutically licensed facility that makes products for human consumption.  Pharmaceutical standards are higher than food standards.  in fact, they are about the toughest standards out there.  We believed that if we were going to make a product at all, then the highest standards would be the best choice.  And finally, we incorporated a preservative system in Dog-Wa.

What do you mean, you added preservatives for safety?

Is your head spinning?  Did I really just say we add preservatives to Dog-Wa for SAFETY?   After all, preservatives have been bashed for years.  And more and more foods are touting themselves as preservative free.  So what’s safe about preservatives, and don’t manufacturers just use them to make cheap products instead of making something natural?

Absolutely not, so far as Dog-Wa is concerned.

Our position is that you do everything you can to ensure that none of the ingredients in your product are infected with harmful pathogens or other contaminants.  Then you manufacture in the best facilities.  You test your product for salmonella, e. coli, microorganisms, safety, stability, and purity.  And then you incorporate a system to ensure that if there is contamination, it will be controlled.  And that’s what preservatives do.

Preservatives maintain freshness by preventing oxidation.  But they also inhibit the growth of molds, microorganisms, and harmful pathogens.  That means that if there are any contaminants in your product, they won’t grow and multiply until they reach dangerous levels.

Our commitment is to fresh and raw.  We are not satisfied that dried, dehydrated, frozen, or baked ingredients match the nutritional and digestive benefits of fresh plants.  Nor are we convinced that dried herbs are 100% safe and free of pathogens.  After all, if white pepper can be infected, so can herbs.

We understand that many of our customers are concerned about preservatives.  What we have found, however, is that our customers are also open to this kind of discussion.  When we explain our decisions, we find that many people agree with us.  And if they don’t agree with us, they often agree with Whole Foods Market.  If you check out the Whole Foods’ supplement section, you’ll find that they offer products with sodium benzoate and potassium sorbate, the preservatives we use in Dog-Wa.

We believe that the benefits of fresh, raw, and SAFE leafy greens outweigh the drawbacks of preservatives in supplements.  And of course we worked to ensure that Dog-Wa would contain as low an amount of preservatives as possible.  The bottom line is that there is no way to be sure that all the food we eat, or give to our animals, is 100% safe and free of pathogens.  So we have to balance out the pros and cons.  As manufacturers of Dog-Wa, we believe that our responsibility to all of our customers means we have to offer the safest, most beneficial product possible.  And believe it or not, one way we do that is with preservatives.

Copyright Dog-Wa 2009

1 comment May 15, 2009

The thinking dog’s take on Harvard’s Canine Cognition Lab

Harvard University has recently debuted its Canine Cognition Lab. According to the article, “Researchers have long looked at other species’ reasoning abilities and behavior to discern what makes humans distinct. The Harvard team is now turning to dogs because on certain tasks, such as understanding pointing, dogs easily outperform animals much more closely related to humans, even chimpanzees.”

We have never been 100% convinced that humans are as closely related to chimpanzees as we are so often told.  But that’s a whole different issue.

What we find confusing with the Canine Cognition Lab is the premise. Evidently, they hope to learn whether domestication has led to dogs that think and act more like their masters – or whether we just think they have human traits. In other words, do we crazy, dog-loving humans just project cognitive capabilities onto our dogs?

Here’s a true story that shows you why we’re confused.

When I was knee-high to a grasshopper, back in Ohio, we lived across the street from a family with four extremely active boys. They were always up to something, so managing the four of them was quite a handful. It was all their parents and their German Shepherd, Babe, could do to keep an eye on all of them.

The youngest of the four boys, Phillip, was famously accident prone. He was the biggest “pronie” in the neighborhood. (Does everyone say “pronie” or is that an Ohio-ism?) Now just for the record, I’d like to clarify right here that I was the all-time neigborhood champion in the “number of stitches” category, but sadly I never broke a bone so there were several kids I couldn’t compete with, let alone Phillip, who trumped all of us with the story I’m about to tell you.

One day Phillip was high in a tree up over the creek. He and two other neighborhood children were putting the finishing touches on their new tree house. Phillip took some kind of a misstep, and began falling with a great crashing of branches through the tree.

In case some of you have never been to Ohio or thereabouts, we had some really huge trees back there. Oaks, maples, walnuts. Of course they’re nothing compared to redwoods and sequoias. But they weren’t little ornamentals that were planted in the yards at the time the houses were built, either. These were full grown, big trees. How big? Well, let’s just say that when Phillip began his fall, he went past the wires that supplied electricity to all of the houses in our neighborhood. I guess they ran the wires along the creek to keep them out of people’s front yards.

Flailing wildly as he fell, Phillip grabbed hold of the wires. Well, as the lawsuit subsequently showed, those wires weren’t insulated and covered the way they ought to be. So Phillip was electrocuted. His heart actually stopped beating at that point, according to the doctors. And I guess when he was electrocuted, his hands went limp enough so that he continued falling. Down his lifeless body plunged, until he hit the ground with such force that it actually started his heart beating again. Which was great. Except for the fact that he landed face down in the creek.

The two neighborhood children who were with him watched the entire thing in stunned disbelief. They scrambled down the tree, took a closer look at Phillip, and then ran as fast as their legs would carry them for help. But instead of going to Phillip’s house adjacent to the scene, they ran home to their own house to tell their mother what had happened. Several blocks away. And they left Phillip face down in the creek.

That’s when Babe took charge. At this point, Babe was roughly 8 years old. Phillip couldn’t have been much older. And you know that dogs grow faster than children. So we always figured that Babe felt pretty maternal about Phillip. She had basically raised him, after all.

So Babe trucked into the creek, grabbed Phillip by the scruff of the neck, and dragged him out. Losing no time, she then ran back to Phillip’s house and barked frantically to alert Phillip’s mother. Once Phillip’s mother came to the door, Babe turned and ran to the creek.

The rest of the story is pretty much what you’d expect: the ambulance came, Phillip was rushed to intensive care, his life was saved, and he returned to the neighborhood covered with glory. You see now why I say that no matter how many stitches I had, this was just not an accident you could compete with.

But here’s our point. We aren’t the only people who know amazing dog stories. There are whole books full of them. And almost all of them revolve around some act of brilliance on the part of the dog that demonstrates a true understanding of the situation at hand, and the action that needs to be taken. In this particular instance, Babe demonstrated a better grip than the other kids playing with Phillip.

So when Harvard University decides to create a Canine Cognition Lab in order to determine whether dogs are capable of higher cognitive functions, what exactly do they mean? Is there something we’re not getting here? Frankly, my own dog treats me as though he’s quite confident that I possess at least a modicum of intelligence. From what I read, dogs have been domesticated for something like 100,000 years. You would think that after that length of time living with dogs, we would have figured out by now whether they are capable of higher cognitive functions. And if some people still aren’t convinced, I’m wondering what they’re going to be able to do at Harvard to change those people’s minds.

Add comment May 14, 2009

Healthy pets, sugars, and artificial sweeteners

It’s no mystery why sweeteners are making an appearance in many dog foods and treats. Dogs love sugars, so they love the products you give them with sugars. You’re happy because your dog is happy. But healthy, real foods can be delicious in themselves, and need not be a source of added, empty calories.

Continue Reading Add comment April 21, 2009

Healthy dogs, leafy greens, and pet food safety standards

We’re very pleased to see that a movement for self-responsibility in food manufacturing is taking hold on a broader level throughout the United States. It’s good to see that more growers, manufacturers, and distributors of America’s food are realizing that safety is not only a matter of health, but of good business sense.

Continue Reading Add comment April 21, 2009

Dogs can suffer from allergies & asthma. Antioxidants may help

Recent research suggests that lack of vitamins A and C could contribute to asthma and possibly allergy sufferers. It’s possible that supplementing with these healthy antioxidants may have benefits for both.

Continue Reading Add comment April 21, 2009

Do dogs have intelligence? Who are you kidding?

A recent study shows that domestic dogs and higher primates are the only ones who can do arithmetic! Now baby chicks are getting into the act.

Continue Reading 1 comment April 21, 2009

Air pollution, your dog’s arthritis, and antioxidants

Air quality has improved, but a new study also finds a link between air pollution and arthritis. Antioxidants offer help, both for humans and animals.

Continue Reading Add comment April 21, 2009


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