Trends in Natural Pet Food & Supplements

Three pugs hanging out near gardening supplies

Dog Food Diet Trends

In 2018, Americans spent nearly $33 billion on pet foods and treats, an increase of 5 percent ($1.5 billion) over the previous year.

Choosing a Grain-Free Dog Food

According to pet health consultant Mary Straus, “The biggest trend in dog food for the last few years has been grain-free foods, which seem to have caught on like wildfire.”

When grain-free foods were first introduced, most had higher protein, higher fat, and lower carbohydrate levels than traditional dog foods, Straus said. That is no longer the case, as many manufacturers now replace grains with other starchy carbohydrates such as potatoes, sweet potatoes, and tapioca.

“When the grain-free trend started, the higher protein content came from meat,” Straus said. “Now companies pump up the protein in their grain-free foods with plant proteins, predominantly from legumes such as beans, chickpeas/garbanzo beans, lentils, peas, and pea protein.”

For best results, Straus recommends rotating between two or three different brands of food containing different protein sources.

Homemade and Raw Diets for Dogs

Another trend in pet food is the feeding of home-prepared diets, either raw or cooked, containing ingredients labeled for human consumption. Popular books describing home-prepared diets for dogs and cats simplify the process, but only a few provide adequate amounts of calcium. For recommended titles, visit Straus’s website,

Supplements for Dogs

Glucosamine (sold alone or combined with chondroitin or other ingredients for joint health) is the best-selling supplement for dogs, followed by fish oil for cardiovascular health, osteoarthritis, and canine skin allergies. Probiotics (supplements containing live beneficial bacteria), prebiotics (foods that support those bacteria), and pet multivitamins and digestive enzymes are also popular.

CBD Oil for Dogs

Thanks to changes in the legal status of cannabis, the fastest growing herbal supplement for dogs is CBD (cannabidiol) oil, which is made not from marijuana but from industrial hemp, which is very low in the psychoactive chemical tetrahydrocannabinol, or THC.

In a 2016 survey by the American Holistic Veterinary Medical Association, 631 pet owners who used CBD oil for their dogs reported that the animals experienced relief from pain, anxiety, seizures, muscle spasms, thunder phobia, skin conditions, and other symptoms. Because CBD oil is a relatively new product, experts recommend consulting with a knowledgeable veterinarian and using organically grown, lab-tested products that don’t contain additional ingredients.

Click to See Our Sources

“CBD Oil Buyer’s Guide,” Dogs Naturally Magazine, 2018 

Personal communication: Mary Straus 

“Top 5 human food and pet food trends for 2019” by Debbie Phillips-Donaldson,, 12/12/18 

“The top ten pet supplements: Do they work?” by Brennen McKenzie,, 5/19/11


CJ Puotinen

CJ Puotinen is the author of Natural Relief from Aches and Pains (Keats/McGraw-Hill) and books about holistic pet care, such as The Encyclopedia of Natural Pet Care (Keats/McGraw-Hill) and Natural Remedies for Dogs and Cats (Gramercy/Random House).