Why Organic Meat Is Less Likely To Hold Dangerous Bacteria"How we raise animals matters," says Meghan Davis. "As a veterinarian, I recognize that we sometimes need to use antibiotics to treat sick animals, but taking advantage of opportunities to reduce antibiotics use could benefit everyone." (Credit: Daniel Foster/Flickr)

Meat that is certified organic by the US Department of Agriculture is less likely to be contaminated with bacteria that can sicken people, including dangerous, multidrug-resistant organisms, compared to conventionally produced meat, according to a new study.

The findings highlight the risk for consumers to contract foodborne illness—contaminated animal products that sicken tens of millions of people in the US each year—and the prevalence of multidrug-resistant organisms that, when they lead to illness, can complicate treatment.

The researchers found that, compared to conventionally processed meats, organic-certified meats were 56% less likely to be contaminated with multidrug-resistant bacteria. The study was based on nationwide testing of meats from 2012 to 2017 as part of the US National Antimicrobial Resistance Monitoring System, or NARMS.

In order for meat to be certified organic by the USDA, animals can never have been administered antibiotics or hormones, and animal feed and forage such as grass and hay must be 100% organic. A longstanding concern about antibiotic use in livestock and livestock feed is the increased prevalence of antibiotic-resistant pathogens. To monitor this trend, in 1996 the federal government developed NARMS to track antibiotic resistance in bacteria isolated from retail meats, farmed animals, and patients with foodborne illness in the US.


innerself subscribe graphic


For their study, the researchers analyzed US Food and Drug Administration-NARMS data from randomly sampled chicken breast, ground beef, ground turkey, and pork for any contamination and for contamination by multidrug-resistant organisms. The analysis covers four types of bacteria: Salmonella, Campylobacter, Enterococcus, and E. coli.

The study covered a total of 39,348 meat samples, of which 1,422 were found to be contaminated with at least one multidrug-resistant organism. The rate of contamination was 4% in the conventionally produced meat samples and just under 1% in those that were produced organically.

“The presence of pathogenic bacteria is worrisome in and of itself, considering the possible increased risk of contracting foodborne illness,” says senior author Meghan Davis, associate professor in the environmental health and engineering department at the Johns Hopkins Bloomberg School of Public Health. “If infections turn out to be multidrug resistant, they can be more deadly and more costly to treat.”

The analysis also suggests that the type of processing facility may influence the likelihood of meat contamination. Meat processors fall into three categories: exclusively organic, exclusively conventional, or those that handle both organic and conventional meats—so-called “split” processors.

The study shows that among conventional meats, those processed at facilities that exclusively handled conventional meats were contaminated with bacteria one-third of the time, while those handled at facilities that processed both conventional and organic meats were contaminated one-quarter of the time. The prevalence of multidrug-resistant bacteria was roughly the same in these two meat processor categories.

“The required disinfection of equipment between processing batches of organic and conventional meats may explain our findings of reduced bacterial contamination on products from facilities that process both types of meats,” says Davis.

The authors believe their findings have relevance for regulatory agencies and consumers.

“How we raise animals matters,” says Davis. “As a veterinarian, I recognize that we sometimes need to use antibiotics to treat sick animals, but taking advantage of opportunities to reduce antibiotics use could benefit everyone. Consumer choice and regulatory oversight are two strategies to do this.”

About the Authors

The study appears in Environmental Health Perspectives. - Original Study

break

Related Books:

Salt, Fat, Acid, Heat: Mastering the Elements of Good Cooking

by Samin Nosrat and Wendy MacNaughton

This book offers a comprehensive guide to cooking, focusing on the four elements of salt, fat, acid, and heat and offering insights and techniques for creating delicious and well-balanced meals.

Click for more info or to order

The Skinnytaste Cookbook: Light on Calories, Big on Flavor

by Gina Homolka

This cookbook offers a collection of healthy and delicious recipes, focusing on fresh ingredients and bold flavors.

Click for more info or to order

Food Fix: How to Save Our Health, Our Economy, Our Communities, and Our Planet--One Bite at a Time

by Dr. Mark Hyman

This book explores the links between food, health, and the environment, offering insights and strategies for creating a healthier and more sustainable food system.

Click for more info or to order

The Barefoot Contessa Cookbook: Secrets from the East Hampton Specialty Food Store for Simple Entertaining

by Ina Garten

This cookbook offers a collection of classic and elegant recipes from the beloved Barefoot Contessa, focusing on fresh ingredients and simple preparation.

Click for more info or to order

How to Cook Everything: The Basics

by Mark Bittman

This cookbook offers a comprehensive guide to cooking basics, covering everything from knife skills to basic techniques and offering a collection of simple and delicious recipes.

Click for more info or to order