Pet calcium supplements from US brands and US-based sellers
8 US brands and sellers surfaced here at $12.74 to $42.99, each verified from Amazon's own published seller info. Last verified August 16, 2026.
A real calcium supplement tells you exactly what form of calcium is inside and how it balances against phosphorus, because that ratio is what actually protects bones. A throwaway version just says 'calcium' on the label and leaves you guessing at the dose.
What to look for in a good pet calcium supplement
- Calcium source. Look for a named source, calcium carbonate, citrate, or bone meal, since each absorbs differently and a cut-rate product often just prints the word 'calcium' with nothing behind it.
- Calcium to phosphorus ratio. A legitimate label states the calcium-to-phosphorus ratio, because feeding calcium alone can throw off a growing pet's skeletal development.
- Form and palatability. Chewables and powders need real binders and flavoring to get eaten at all, and a knockoff skips that step, leaving you with a chalky tablet your dog just spits out.
- Price as a signal. The vetted sellers we found run $13 to $43, so a tub priced well under that for the same dosage per scoop is saving money somewhere, usually on purity testing.
We read each seller's registered country from Amazon's own published seller info. We don't claim anything here is manufactured in the US, only that you're buying from a US brand or a US-based seller.
Quick comparison
| Brand | Price | Seller |
|---|---|---|
| NaturVet | $17.83 | US brand |
| PetAg | $12.74 | US brand |
| Zesty Paws | $32.97 | US brand |
| Grizzly Pet Products | $25.50 | US-based seller |
| Nupro | $28.40 | US-based seller |
| PetHonesty | $42.99 | US-based seller |
| Vetoquinol | $18.49 | US-based seller |
| Wholistic Pet Organics | $26.99 | US-based seller |
Confirmed US brands and sellers
8 listings where Amazon's own seller info places the seller in the US. Each badge says which.
NaturVet All-in-One Dog Supplement Daily Multivitamin - 60 Soft Chews
PetAg Calcium Phosphorus Tablets - 50 Tablets - Daily-Use, Chewable Supplement for Dogs & Cats 12 Weeks and Older - Fortified with Vitamin D
Zesty Paws Dog Multivitamin, Chewable Dog Vitamins and Supplements for Hip & Joints, Skin & Coat, Omega 3 Fish Oil for Dogs- Senior & Puppy Multivitamin- Chicken- 90ct
GRIZZLY PET PRODUCTS Joint Aid Liquid Hip and Joint Health Supplement Product for Dogs and Cats, 16 Ounce
NUPRO® Natural Dog Supplement, 30 Ounces
Advanced Formula Hip + Joint Supplement for Dogs - Joint Support with Glucosamine Chondroitin, MSM & Calcium Fructoborate - Fast Acting Mobility + Stiffness for Large Dogs & Seniors (Bacon 90 Ct)
Vetoquinol Nutri-Cal - High-Calorie Nutritional Gel - Supports Daily Nutrition for Picky Eaters - Essential Nutrients & Vitamins for Cats & Dogs - Easy Feeding Oral Gel - 4.25 oz
Calcium for Dogs and Cats, 60 Scoops
US brands we went looking for
More names an AI suggested for this category that we haven't confirmed US on yet. Each badge says how far we've checked it.
Ark Naturals Joint Rescue Dog Chews, Lamb Flavor, Joint Supplement with Glucosamine & Chondroitin, 1 Pack
Nutramax Laboratories NARAQUIN™ Dietary Phosphate Binder + Renal Support Supplement for Cats & Dogs, 60 Count
Nutri-Vet Dog Multivitamin, Daily Vitamins, Dog Health Support, 70 Count
Suggested, not verified. These names came from an AI suggestion, not from our data. We only call a brand US after checking the seller's registered address on its Amazon seller page. Amazon is the seller on these, so its seller page can't tell us who the brand is.
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