Taurine deficiency in dogs grain free9/13/2023 ![]() ![]() In fact, results of a large golden retriever breed club survey in 1999 showed the incidence of cardiomyopathy in >1400 golden retrievers to be less than 0.7% with no further classification information provided. The over-representation of golden retrievers is interesting as there is no literature to support any familial relationship or genetic etiology for classic DCM in golden retrievers. The role of taurine deficiency in this breed appears more relevant when compared to other breeds eating similar diets. Of all breeds represented in the research and FDA report, the golden retriever is consistently the most frequently reported breed to be affected by nutritionally-mediated DCM. When evaluated, the FDA data also identifies an inverse relationship/correlation between the size of a company in terms of worldwide sales and the number of reported cases of DCM where smaller companies have the highest reported case numbers. ![]() This data is supported by similar findings from researchers at multiple institutions and suggests that diets which are grain-free, contain legume or potato ingredients warrant study to further elucidate a possible role in the causation of DCM. The Food and Drug Administration issued a warning and subsequently released data that identified dietary characteristics which were over-represented in consumer concern reports. Recent peer-reviewed research on DCM in breeds that were not previously known to have a genetic etiology has raised concern about the relationship between diets with certain characteristics and the development of nutritionally-mediated DCM. Nutritionally mediated DCM has been described across a variety of species including dogs and is most historically linked to taurine deficiency. While DCM of genetic origins have been described for some breeds based upon discovered mutations or observed heritability and pattern of inheritance, determining etiology of DCM when observed outside of these breeds is challenging. Canine dilated cardiomyopathy (DCM) represents the second most common acquired heart disease in dogs and has multiple identified etiologies. ![]()
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