Category Archives: Herbs and Supplements

Evidence Update: Old Tricks Used to Massage Neutricks Study Data

A few years ago, I reviewed a nutritional supplement called Neutricks which is marketed to “support brain health.” The company is careful not to make any specific claims about prevention or treatment of disease, which would be illegal, but the … Continue reading

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Evidence Update- Ocu-GLO for Prevention of Cataracts in Diabetic Dogs

About a year ago, I wrote a review of Ocu-GLO, an oral supplement marketed for a variety of purposes: Ocu-GLO Rx™ is needed when your dog is showing any of the following signs: – Diminished vision at night or in … Continue reading

Posted in Herbs and Supplements | 38 Comments

What You Know That Ain’t Necessarily So: Glucosamine & Arthritis in Dogs

I recently gave a lecture at the Western Veterinary Conference called “What You Know that Ain’t Necessarily So.” The purpose of this was to take some common or controversial beliefs and practices in veterinary medicine and discuss the scientific evidence … Continue reading

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Probiotics in Horses

I’ve written frequently about probiotics, microorganisms given as supplements to hopefully benefit health.  Often claimed as an “alternative” therapy, probiotics are really no different from any therapy in science-based medicine. The theory behind their use is certainly consistent with established … Continue reading

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Duralactin for Arthritis

I was recently asked by a reader to comment on yet another product marketed for arthritis treatment in dogs and cats: Duralactin. Because arthritis is a very common disease for which there is no definitive cure, it is a popular … Continue reading

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Even Mandatory FDA Recalls Can’t Make Supplement Manufacturers Stop Lying About What’s in their Products

There is ample evidence that under the current lax regulatory system in the U.S., dietary supplements are frequently mislabeled and adulterated with pharmaceuticals, toxins, and other undesirable substances. Apart from the lack of evidence to support the claims of benefits … Continue reading

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Anxitane (l-theanine) for Anxiety in Dogs

Introduction I was recently asked to look into the evidence concerning a potential therapy for anxiety in dogs, a supplement called Anxitane. It is always challenging to evaluate the effects of any therapy for anxiety in any species. Anxiety is … Continue reading

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Evidence Update: Azodyl for Chronic Kidney Disease in Dogs

One of the products I have kept track of over the years is Azodyl, a probiotic reported to be useful in treating kidney disease in dogs and cats. Though the company has reported positive results in laboratory studies involving rats, … Continue reading

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Latest Review of Evidence for Vitamin D & Calcium Supplements

I have reviewed the complex and inconsistent evidence concerning the potential risks and benefits of vitamin supplements here, and concluded that most of the common claims for health benefits are unjustified. I recently discussed an example of this sort of … Continue reading

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Artemisinin-Is It a Useful Drug for Cancer Treatment in Dogs?

A couple of readers have asked about a purported cancer therapy agent called artemisinin. This is a compound derived from a plant and used for a variety of purposes in the system known as Traditional Chinese Medicine. It is sometimes … Continue reading

Posted in Herbs and Supplements | 72 Comments