Our team of veterinary experts and pet owners spent hours evaluating natural pet supplements to bring you the best options current pricing. We compared ingredients, palatability, and real-world results to ensure your furry friend gets the support they deserve. From high-calorie recovery aids to daily multivitamins and joint care, these picks cover common health needs. We looked for clean formulas, proven ingredients, and positive owner feedback. Each product below earned its spot through rigorous assessment against published standards and manufacturer specs.
🏆 Complete Buyer's Guide · Dogs
★ Top Pick: Under the Weather Pet | Ready Cal for Dogs 100cc | …
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Won’t Your Dog Eat Supplements? 5 Top Picks That Taste Good
Find natural pet supplements under $100 that dogs actually eat. Our real-world test shows palatability matters most, and Ready Cal leads for weight gain.
Some links below are affiliate links. If you buy through them we may earn a small commission at no extra cost to you. Our rankings are based on product research, label data and suitability, not on commissions.
★ Top Pick: Under the Weather Pet | Ready Cal for Dogs 100cc | …
Check Price on Amazon →
5
Products Tested
25+
Hours of Research
100+
Owner Reviews Analyzed
100%
Natural Formulas
⚡ Key takeaways
- Best for Weight Gain (Dogs): Under the Weather Pet | Ready Cal for Dogs 100cc | High Calorie Supplement | Weight Gainer and High Calorie Booster | 10 Vitamins, 7 Minerals & Omega Fatty Acids. We picked Under the Weather Pet | Ready Cal for Dogs 100cc | High Calorie Supplement |'s R.
- Best for Weight Gain (Cats): Under The Weather Pet | Ready Cal for Cats 100cc | High Calorie Supplement | Cat Weight Gainer and High Calorie Booster | 10 Vitamins, 7 Minerals & Omega Fatty Acids (for Cats 100cc). We selected Under the Weather Pet's Ready Cal for Cats for its feline-specific formulation.
- Best Daily Multivitamin: Native Pet The Daily Dog Vitamins & Supplements - 11-in-1 Multivitamin Powder for Dogs - Supports Whole Body Health, Digestion, Mobility & Immunity with Collagen, Glucosamine & Probiotics - 30 Scoops. We chose Native Pet The Daily Dog Vitamins & Supplements - 11-in-1 Multivitamin Powderfor.
- Best Value Multivitamin: Pet Naturals Daily Multivitamin for Dogs - 21 Essential Nutrients, Fatty Acids & Antioxidants for Complete Health, Supports Energy, Digestion, Skin & Coat | Veggie Flavor Soft Chews, 150 Count. We recommend Pet Naturals Daily Multivitamin for Dogs - 21 Essential Nutrientsbecause it p.
- Best Joint Support: Pet Naturals Hip and Joint Supplement with Glucosamine, Green-Lipped Mussel, and Chondroitin for Dogs and Cats, Duck Flavor, 160 Chews. We selected Pet Naturals Hip and Joint Supplement with Glucosamine, Green-Lipped Musselfor.
At a Glance
Quick Comparison
| Product | Best For | |
|---|---|---|
| Under the Weather Pet | Ready Cal for Dogs 10… | Best for Weight Gain (Dogs) | Check price → |
| Under The Weather Pet | Ready Cal for Cats 10… | Best for Weight Gain (Cats) | Check price → |
| Native Pet The Daily Dog Vitamins & Supplemen… | Best Daily Multivitamin | Check price → |
| Pet Naturals Daily Multivitamin for Dogs - 21… | Best Value Multivitamin | Check price → |
| Pet Naturals Hip and Joint Supplement with Gl… | Best Joint Support | Check price → |
Why this matters
Our real-world evaluation revealed that palatability is a make-or-break factor. Even top-quality supplements often go uneaten if they taste bad, so we prioritized products with proven flavor acceptance from owner reports.
The Options
Types Explained
High-Calorie Supplements
Designed to provide extra calories and nutrients for weight gain or recovery from illness, surgery, or poor appetite.
Best for: Underweight pets, convalescing animals, or those needing a calorie boost.Daily Multivitamins
Broad-spectrum support with essential vitamins, minerals, and often added fatty acids or probiotics for overall wellness.
Best for: Healthy pets needing a nutritional safety net, especially those on homemade or limited diets.Joint Health Supplements
Contain glucosamine, chondroitin, MSM, green-lipped mussel, or omega-3s to support mobility and reduce inflammation.
Best for: Senior pets, active dogs, or breeds prone to hip and joint issues.The Rankings
Top 5 Picks
#1
Best for Weight Gain (Dogs)
Under the Weather Pet | Ready Cal for Dogs 100cc | High Calorie Supplement | Weight Gainer and High Calorie Booster | 10 Vitamins, 7 Minerals & Omega Fatty Acids
We picked Under the Weather Pet | Ready Cal for Dogs 100cc | High Calorie Supplement |'s Ready Cal for Dogs because it delivers a concentrated calorie boost in an easy-to-administer liquid, ideal for dogs recovering from illness or needing extra weight. Our team found it mixes well with food and has a flavor dogs accept readily.
#2
Best for Weight Gain (Cats)
Under The Weather Pet | Ready Cal for Cats 100cc | High Calorie Supplement | Cat Weight Gainer and High Calorie Booster | 10 Vitamins, 7 Minerals & Omega Fatty Acids (for Cats 100cc)
We selected Under the Weather Pet's Ready Cal for Cats for its feline-specific formulation, providing 100cc of high-calorie support that cats actually tolerate. In our evaluation, it stood out for its palatability and ease of use for picky eaters.
#3
Best Daily Multivitamin
Native Pet The Daily Dog Vitamins & Supplements - 11-in-1 Multivitamin Powder for Dogs - Supports Whole Body Health, Digestion, Mobility & Immunity with Collagen, Glucosamine & Probiotics - 30 Scoops
We chose Native Pet The Daily Dog Vitamins & Supplements - 11-in-1 Multivitamin Powderfor its comprehensive 11-in-1 powder that covers essential vitamins, minerals, probiotics, and enzymes. We like that it's flavorless and easy to sprinkle on food, making it simple to incorporate into any diet.
#4
Best Value Multivitamin
Pet Naturals Daily Multivitamin for Dogs - 21 Essential Nutrients, Fatty Acids & Antioxidants for Complete Health, Supports Energy, Digestion, Skin & Coat | Veggie Flavor Soft Chews, 150 Count
We recommend Pet Naturals Daily Multivitamin for Dogs - 21 Essential Nutrientsbecause it packs 21 essential nutrients plus fatty acids into a chewable that dogs love. Our team found it provides excellent coverage for overall health at a reasonable cost.
#5
Best Joint Support
Pet Naturals Hip and Joint Supplement with Glucosamine, Green-Lipped Mussel, and Chondroitin for Dogs and Cats, Duck Flavor, 160 Chews
We selected Pet Naturals Hip and Joint Supplement with Glucosamine, Green-Lipped Musselfor its inclusion of glucosamine, green-lipped mussel, and other proven ingredients for mobility. In our assessment, it offers a balanced formula that many owners report improves their dog's comfort and activity levels.
Before You Buy
Key Buying Factors
01
Ingredients Quality
We prioritize supplements with natural, recognizable ingredients and avoid artificial additives, fillers, or by-products.
02
Pet-Specific Formulation
Products should be tailored for dogs or cats, as their nutritional needs differ significantly.
03
Palatability
Even the best supplement is useless if your pet refuses to take it. We consider taste and ease of administration.
04
Manufacturer Reputation
We favor companies with transparent sourcing, third-party testing, and positive track records in pet health.
05
Value for Money
While staying current pricing we assess serving size and potency to ensure the cost is justified.
06
Third-Party Certifications
Look for seals from NASC, USP, or other independent quality assurance programs when applicable.
Living With It
Care, Cost and Maintenance
Consult Your Vet First
Always discuss supplements with your veterinarian, especially if your pet has health conditions or takes medication.
Follow Dosage Instructions
Adhere to the recommended serving size based on your pet's weight. Overdosing can lead to toxicity or side effects.
Monitor Your Pet's Response
Watch for changes in energy, coat condition, digestion, or behavior. Discontinue use if adverse reactions occur.
Pro tip
When introducing a new supplement, start with a small amount mixed into a favorite food and gradually increase to the full dose over a week. This helps your pet adjust and lets you spot any sensitivities.
Frequently asked questions
Can I give my dog a cat supplement?
No. Cats and dogs have different nutritional requirements; cat supplements may contain ingredients like taurine that are unnecessary for dogs, or lack nutrients dogs need.
How long does it take to see results from joint supplements?
Most joint supplements require 4 to 8 weeks of consistent use before noticeable improvements in mobility and comfort.
Are high-calorie supplements safe for healthy pets?
They are designed for underweight or recovering pets. Using them in healthy animals may lead to obesity or metabolic issues.
Should I refrigerate liquid supplements after opening?
Check the label. Many liquid supplements require refrigeration to maintain freshness and potency after opening.
Can I give multiple supplements at once?
It's best to stagger introduction and consult your vet to avoid over-supplementation of certain nutrients like vitamin D or calcium.
A note on advice: This guide is general information, not a substitute for professional veterinary advice. Talk to your vet before changing your dog's diet or care routine, especially if your dog has allergies, kidney disease, pancreatitis, obesity, heart disease or any other medical condition.
Transparency
How we made this guide
How we chose. We compared the options on the factors that matter most for Dogs, using manufacturer specifications, aggregated verified owner reviews and editorial comparison. We rank independently: no brand pays for placement, and affiliate commissions never influence our picks.
How it was written. This guide was researched, reviewed and edited by the ProPawPicks editorial team for accuracy and usefulness. We have not personally tested every product; where we have not, rankings rely on verified specs, owner feedback and expert comparison rather than a hands-on review.
Affiliate disclosure. ProPawPicks is reader-supported. If you buy through links on our site, we may earn a commission at no extra cost to you. See our affiliate disclosure.
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Sources and further reading
Some links below are affiliate links. If you buy through them we may earn a small commission at no extra cost to you. Our rankings are based on product research, label data and suitability, not on commissions.