Pet Health Products Worth Buying (2026): What the Evidence Supports

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How we put this guide together: We are not vets and we didn’t test products. This guide follows the published guidance of the bodies that set standards in each area: the Companion Animal Parasite Council (CAPC) for parasite control, the Veterinary Oral Health Council (VOHC) for dental products, and AAFCO for pet food. We don’t recommend specific brands here. The aim is to help you tell which products have evidence behind them.

Pet health products at a glance

1. Parasite prevention: the highest-value purchase

The Companion Animal Parasite Council recommends “year-round broad-spectrum parasite control with efficacy against heartworm, intestinal parasites, fleas, and ticks.” It also advises annual heartworm testing in dogs, fecal testing at least twice a year for healthy adult pets (and at least four times in a puppy’s or kitten’s first year), and a check-up every 6 to 12 months.

Several of these products need a vet’s prescription, and the right choice depends on your pet’s species, weight, age and where you live. Ask your vet which combination fits, then buy it from your vet or a licensed pharmacy.

2. A complete and balanced food

The most important product your pet uses every day is its food. Look for a statement on the label that the food is “complete and balanced” for your pet’s life stage (growth, adult maintenance or all life stages), based on AAFCO nutrient profiles or feeding trials. Beyond that, the WSAVA suggests asking manufacturers whether they employ a qualified nutritionist and test their foods, questions that tell you more than ingredient marketing. See our guides to wet vs dry cat food and choosing between premium dog food brands.

3. Dental products with the VOHC Seal

The Veterinary Oral Health Council awards its Seal to products “intended to help retard plaque and tartar on the teeth of animals” when the company’s data show the product works. VOHC says regular use of Seal-awarded products “will reduce the severity of periodontal disease in pets.” It publishes a list of accepted products for dogs and cats, including chews, diets, water additives and toothpastes. Brushing and vet dental checks still matter most; a Seal product is a helpful addition.

4. Supplements: ask before you buy

Pet supplements for joints, anxiety, skin or digestion are a large market, but they’re regulated differently from medicines. Animal supplements don’t need FDA approval before they’re sold, so a label claim isn’t proof that a product works or contains what it says. The National Animal Supplement Council (NASC) runs a quality seal for member companies that pass facility audits and random product testing. That’s a sign of manufacturing quality, not of effectiveness.

Some supplements can be useful for specific conditions, so ask your vet whether one is likely to help your pet, at what dose, and whether it could interact with any medication.

5. Insurance and telehealth: protecting your budget

Pet insurance and telehealth memberships don’t improve health directly, but they can make it easier to say yes to care. Compare coverage limits, waiting periods and exclusions carefully. Our Pawp review explains how one telehealth plan’s emergency fund works, and how it differs from insurance.

Which products are worth it?

Frequently asked questions

Do pets really need parasite prevention all year?

The Companion Animal Parasite Council recommends year-round broad-spectrum protection against heartworm, intestinal parasites, fleas and ticks, along with annual heartworm testing in dogs. Your vet can tailor this to your area.

What does the VOHC Seal mean on a dental chew?

It means the Veterinary Oral Health Council reviewed the company’s data and found the product meets its standard for helping control plaque, tartar or both. VOHC publishes the list of accepted products for dogs and cats.

Are pet supplements regulated?

Animal supplements don’t need FDA approval before they’re sold, unlike medicines. The NASC Quality Seal shows a company passed audits and product testing, but not that a supplement is effective. Ask your vet before using one.

Which pet food is healthiest?

There’s no single healthiest food. Choose one labelled complete and balanced for your pet’s life stage, from a manufacturer that employs qualified nutritionists, and adjust with your vet based on your pet’s weight and health.

Further reading

• Wet vs Dry Cat Food: Which Is Better for Your Cat?
• Dog Food for Sensitive Stomachs: How to Choose
• Pawp Review: Vet Telehealth Explained