It’s normal to feed our furry friends morsels from the table. But is the reverse safe? Can a human safely eat pet food? Is there any chance it could kill you?
The short answer is that pet food can be harmful to humans if it’s contaminated, according to Dana Hunnes, an assistant professor at the Fielding School of Public Health at the University of California, Los Angeles (UCLA) and a senior dietitian at the Ronald Reagan UCLA Medical Center. Foodborne pathogens such as Salmonella and E. coli impact pet food, just as they do human food. That’s why it’s important to follow your pet food’s storage guidelines to protect your furry friends, according to Healthline (opens in new tab). For instance, the U.S. Food and Drug Administration (opens in new tab) recommends storing dry and canned pet food in a cool, dry place no warmer than 80 degrees Fahrenheit (26.6 degrees Celsius).
But because we often aren’t as careful storing pet food as we are our own food, eating your pet’s food may run a greater risk of contamination, Dr. Beth Ann Ditkoff, a biology faculty member at Sarah Lawrence College in New York, told VICE (opens in new tab).
Over the years, the FDA has issued numerous recalls and withdrawals (opens in new tab) concerning pet food, including a potential Salmonella contamination from rodent activity at a distribution center in 2022 and dog food with elevated levels of aflatoxins, or toxins produced by certain fungi found on agricultural crops, in 2021.
But uncontaminated pet food is safe, at least in the short term, Hunnes said. Most pet food is made up of food-grade leftovers and byproducts, she told Live Science. Parts like bone meal, meat scraps and offal (such as the stomach, large intestine or tongue) from slaughterhouses, or soybean and grain byproducts from processing plants are the major components of pet food. Though these ingredients may not be very appetizing, pet food comes from the same sources as human food. So it’s not inherently toxic, and it’s safe to try if you’re curious about kibble or even decide to eat it in an emergency food shortage, Hunnes said. However, where some raw pet foods are concerned, you should steer clear. That’s never a good idea for humans, according to the report from Healthline (opens in new tab).
Hunnes said it’s best to limit pet food consumption to a short duration — ideally no more than a couple of days. In an emergency, pet food offers a source of calories and protein. But it’s important to remember that pet food is tailored to the unique needs of pets, not humans.
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For example, dog foods include vitamin K, which can be toxic to humans at high amounts, Hunnes said. And both dogs and cats manufacture their own vitamin C, a nutrient humans must get from their diet, so that’s left out of some pet foods. In other words, long-term pet food consumption in humans carries the risks of nutritional deficiency, Hunnes said.
It’s also important to know that most pet food is labeled “not fit for human consumption.” So if eating pet food does make you sick, either from nutritional deficiency or from a contaminant that got into the food before it reached your house, you’d have limited legal recourse, according to a report from VICE (opens in new tab).
Ultimately, pet food isn’t toxic to humans, but it isn’t ideal. You can give it a try or even use it if you’re in need. But it’s not a long-term solution from a nutritional or food safety perspective.
Originally published on Live Science on Feb. 26, 2013 and updated on June 11, 2022.
Live Science Contributor
Donavyn Coffey is a Kentucky-based health and environment journalist reporting on healthcare, food systems and anything you can CRISPR. Her work has appeared in Scientific American, Wired UK, Popular Science and Youth Today, among others. Donavyn was a Fulbright Fellow to Denmark where she studied molecular nutrition and food policy. She holds a bachelor’s degree in biotechnology from the University of Kentucky and master’s degrees in food technology from Aarhus University and journalism from New York University.
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