Pets May Be Boosting Our Immune Systems in Surprising Ways

According to a recent BBC Future feature by David Cox, pets might be doing more than offering cuddles—they may be helping to shape our immune systems. Research into communities like the Amish, who live in close contact with animals, shows significantly lower rates of allergies, asthma, and autoimmune diseases compared to similar groups with less exposure to animals.

One pivotal study compared Amish children to Hutterite children. Both groups share similar ancestry and diets, but only the Amish live directly with farm animals. The result? Amish children were found to have stronger regulatory T cells, which help prevent overactive immune responses. Scientists linked this to the higher diversity of microbes in Amish homes—many coming from animals.

Even dogs, the most common household pet, are part of this immune-boosting story. A 2025 study found that children genetically predisposed to eczema were less likely to develop the condition if they had a dog in early life. Though the idea that pet microbes permanently colonize our guts is still debated, what’s clear is that early exposure to animal-associated bacteria stimulates healthy immune development.

Experts like Jack Gilbert from UC San Diego suggest our immune systems evolved to expect microbes from animals. And it’s not just kids who benefit. Adults with pets may experience boosted immunity simply through increased outdoor activity and exposure to a wider range of environmental microbes.

So, while our modern, sterilized lifestyles may reduce pathogen exposure, they also limit beneficial microbial interactions. Animals might just be the immune system’s forgotten trainers.

If you love animals, this is yet another reason to welcome them into your home. Adopt a shelter pet, visit local farms, and say yes to more nature walks with your furry companions. Let your life—and your immune system—benefit from the power of paws and hooves.

Sign These Petitions! 

Please sign our latest and most urgent petitions to help the planet. Every signature counts!

• Petition: Florida Man Kills Protected Heron for Being in His Backyard
• Petition: Bring Andry José Hernández Romero Home from El Salvador Prison Now
• Petition: Ban Toxic Chemicals in Tampons Now — Protect Health and Demand FDA Action

Related Content:

•  5 Dogs Who Went from Strays to Living Like Royalty
•  British TV Presenter Backs Campaign to Save Morocco’s Street Dogs Amid World Cup Crisis
•  Petition: Demand Justice for Dogs Tortured at Minnesota Boarding Facility
•  5 Heartbreaking Times Senior Dogs Were Abandoned but Then Adopted by Better Humans
•  Watching These Adorable Dogs Beg for a Petting is Cuteness Overload! [Video]

Easy Ways to Help the Planet:

• Eat Less Meat: Download Food Monster, the largest plant-based Recipe app on the App Store, to help reduce your environmental footprint, save animals and get healthy. You can also buy a hard or soft copy of our favorite vegan cookbooks.
• Adopt-a-Pet: Visit WildWatchers, a watchdog platform specifically designed for animal, earth, and wildlife warriors to actively give back, rescue, and protect animals and the planet.
• Reduce Your Fast Fashion Footprint: Stand against fast fashion Pollution by supporting circular brands like Tiny Rescue, which create cause-based collections using recycled, zero-waste clothing designed to be returned and remade, ensuring it never ends up in a landfill.
• Shop Sustainably for Your Home: Visit SustaiNOBLE.org, an eco-friendly and ethically sourced home decor store that will empower your home with luxurious fair-trade, and sustainable products made by global artisans. 
• Support Independent Media: Being publicly funded gives us a greater chance to continue providing you with high-quality content. Please consider supporting us by donating!
• Sign a Petition: Your voice matters! Help turn petitions into victories by signing the latest list of must-sign petitions to help people, animals, and the planet.
• Stay Informed: Keep up with the latest news and important stories involving animals, the environment, sustainable living, food, health, and human interest topics by subscribing to our newsletter!
• Do What You Can: Reduce waste, plant trees, eat local, travel responsibly, reuse stuff, say no to single-use plastics, recycle, vote smart, switch to cold water laundry, divest from fossil fuels, save water, shop wisely, Donate if you can, grow your food, volunteer, conserve energy, compost, and don’t forget about the microplastics and microbeads lurking in common household and personal care products!