10 Best Cat Probiotics 2025 in the United States

Nutramax Proviable Probiotics offer a good mix of beneficial bacteria strains with a 5 billion CFU count, which is a solid amount to support your cat’s digestive health. The addition of prebiotics helps nourish these good bacteria, encouraging a healthier gut environment. The capsules are easy to use—you simply open them and sprinkle the powder over your cat’s food, which can be more convenient than pills or liquids.

This probiotic is designed for both dogs and cats of all life stages, making it a versatile option for households with multiple pets. It is backed by clinical research and comes from a reputable company known for quality pet supplements, providing confidence in its effectiveness and safety. The supplement has good shelf stability and a natural flavor, meaning it should keep well without refrigeration and won’t taste artificial.

This probiotic is well-suited for cat owners looking to support their pet’s digestive health, especially after diet changes or stress, while those seeking very specific bacterial strains or quick-acting formats might want to consider other options.

The Pet Honesty Digestive Probiotic Powder Supplement for Cats is designed to support digestive health, bowel function, and immunity. One of its strengths is the vet recommendation, which assures a level of trust and credibility in the product. The product is formulated with natural ingredients and avoids chemicals or toxins, making it a safer option for your cat.

Additionally, it is made in the USA, adhering to strict safety standards, which is reassuring for pet owners concerned about quality control. Each container offers 120 scoops, making it a long-lasting option for daily use. The powder form can be easily mixed into your cat's food, making administration simple and hassle-free.

Another minor drawback is that it contains soy, which some cats might be sensitive to. This product appears to be a good fit for adult cats of all breeds, particularly those needing digestive and bowel support.

Pet Honesty Cat Probiotics Gut + Immune Health Chews are designed to support your cat's digestive and immune health. These chews come in a convenient and tasty chicken flavor that most cats seem to enjoy. They include probiotics that help maintain healthy gut flora, prebiotics to promote beneficial bacteria, and omegas for a robust immune system.

The chews are formulated without corn, wheat, soy, or artificial preservatives, colors, and flavors, making them a good choice for health-conscious pet owners. Made in the USA, these supplements meet high safety and quality standards as Pet Honesty is a NASC member company.

Ideal for adult cats, they offer a 30-day supply aimed at improving gut health, immunity, and regularity, while also providing relief from constipation.