How Best Pet Supplements on Chewy Help Maintain Healthy Immune System Function

By Jessica Morgan
Updated on July 20, 2026 03:20 PM

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How Best Pet Supplements on Chewy Help Maintain Healthy Immune System Function

Every dog has unique nutritional needs that can change with age, activity level, diet, and overall health. The best pet supplements on Chewy provide targeted support for common concerns like joint mobility, digestive health, skin condition, immune function, and daily nutrition.  While a complete and balanced dog food supplies essential nutrients, supplements can help fill specific nutritional gaps when recommended by your veterinarian.

Chewy carries a wide selection of veterinarian-recommended brands that suit puppies, adult dogs, and senior companions. Choosing the right product depends on your dog's health goals, ingredients, quality standards, and budget.  This guide reviews some of the most trusted supplements available on Chewy, explains their benefits, discusses current pricing, and offers practical buying tips to help you make an informed decision.


Best Pet Supplements on Chewy for Every Dog

Selecting the best pet supplements on Chewy starts with identifying your dog's primary health concern. Some formulas support overall wellness, while others target digestion, joints, skin, or anxiety.

Pet Protect DVM Daily Multivitamin Soft Chews

Best for: Daily nutrition Typical Price: $35–$45

Pet Protect DVM Daily Multivitamin offers broad nutritional support with vitamins A, D3, E, and the complete B-complex. It also contains zinc and selenium, minerals that help maintain normal immune function and healthy metabolism.

Highlights

  • Around 120 soft chews per container
  • Supports healthy skin and coat
  • Helps maintain energy levels
  • Suitable for adult dogs needing everyday nutritional support

Vital Planet Flora Dog Probiotic (20 Billion CFU)

Best for: Digestive support Typical Price: $30–$40

Vital Planet Flora Dog contains 20 billion live probiotics from multiple strains to support a balanced digestive system. It may help dogs experiencing occasional diarrhea, gas, bloating, or digestive upset after dietary changes.

Highlights

Happy Go Healthy Gut Health Supplement

Best Budget Digestive Formula Typical Price: $25–$35

This supplement combines probiotics, prebiotics, ginger root, and Icelandic seaweed to support healthy digestion and nutrient absorption.

Highlights

  • Powder and capsule options
  • Supports beneficial gut bacteria
  • Includes digestive botanicals
  • Budget-friendly option

Purina Pro Plan FortiFlora Probiotic Powder

Best Veterinary Recommended Probiotic Typical Price: $28–$35 (30 sachets)

FortiFlora contains the probiotic strain Enterococcus faecium, widely recommended by veterinarians for digestive support. It mixes easily with food and is commonly used during recovery from digestive disturbances or after antibiotic treatment.

Highlights

  • Clinically studied probiotic
  • Highly palatable powder
  • Supports digestive balance
  • Trusted by veterinarians

Nutramax Cosequin Joint Health Supplement

Best for Joint Support Typical Price: $40–$70

Cosequin contains glucosamine and chondroitin sulfate, ingredients commonly used to support healthy cartilage and joint function. It is especially popular for senior dogs and active breeds.

Highlights

  • Supports cartilage health
  • Helps maintain mobility
  • Available as tablets and soft chews
  • Veterinarian recommended

Zesty Paws 8-in-1 Multivitamin Bites

Best Overall Supplement Typical Price: $25–$35

Zesty Paws combines probiotics, glucosamine, omega fatty acids, vitamins, and antioxidants into one convenient chew.

Highlights

  • Supports multiple body systems
  • Helps reduce supplement clutter
  • Suitable for everyday wellness
  • Highly palatable soft chews

Nordic Naturals Omega-3 Pet Fish Oil

Best Skin and Coat Supplement Typical Price: $20–$45

Nordic Naturals provides EPA and DHA omega-3 fatty acids sourced from wild-caught fish. The oil supports healthy skin, a shiny coat, normal brain function, and overall wellness.

Highlights

  • Third-party purity tested
  • Rich in EPA and DHA
  • Liquid for flexible dosing
  • Supports healthy skin and coat

VetriScience Composure Calming Chews

Best for Stress Support Typical Price: $20–$35

These calming chews contain L-theanine and colostrum to help dogs remain relaxed during stressful situations such as travel, thunderstorms, fireworks, or veterinary visits.

Highlights

  • Fast-acting formula
  • Non-sedating ingredients
  • Soft chew format
  • Suitable for occasional stress

Best Picks by Category

Category Recommended Supplement Typical Price

  • Best Overall: Zesty Paws 8-in-1 Multivitamin Bites — $25–$35
  • Best Probiotic: Purina Pro Plan FortiFlora — $28–$35
  • Best Joint Support: Nutramax Cosequin — $40–$70
  • Best Skin & Coat: Nordic Naturals Omega-3 Fish Oil — $20–$45
  • Best Budget: Happy Go Healthy Gut Health Supplement — $25–$35
  • Best Daily Multivitamin: Pet Protect DVM Daily Multivitamin — $35–$45
  • Best Calming Supplement: VetriScience Composure — $20–$35

How to Choose the Right Dog Supplement

Before purchasing a supplement, consider these factors:

  • Your dog's age and breed
  • Existing health conditions
  • Veterinary recommendations
  • Ingredient quality
  • Third-party testing
  • Easy-to-administer format
  • Product reviews
  • Price per serving

Supplements should complement a balanced diet rather than replace complete nutrition.

Are Dog Supplements Worth Buying?

Many dogs benefit from supplements when they have specific nutritional or health needs. For example:

  • Older dogs may benefit from joint support.
  • Dogs with sensitive stomachs often respond well to probiotics.
  • Dogs with dry skin may improve with omega-3 supplements.
  • Active dogs may benefit from comprehensive multivitamins.

Always consult your veterinarian before introducing a new supplement, particularly if your dog has an existing medical condition or takes prescription medication.

Frequently Asked Questions

What are the best pet supplements on Chewy?

Popular choices include Zesty Paws 8-in-1 Multivitamin, Purina Pro Plan FortiFlora, Nutramax Cosequin, Nordic Naturals Omega-3 Fish Oil, and Pet Protect DVM Daily Multivitamin.

Do veterinarians recommend dog supplements?

Yes. Many veterinarians recommend supplements like FortiFlora and Cosequin for specific digestive or joint concerns when appropriate.

How long does it take supplements to work?

Results vary by product. Probiotics may show benefits within several days, while joint supplements often require four to six weeks of consistent use.

Can puppies take supplements?

Some supplements are formulated specifically for puppies. Always follow the manufacturer's age recommendations and consult your veterinarian.

Can dogs take multiple supplements together?

Some combinations are appropriate, although overlapping ingredients may result in unnecessary nutrient intake. Your veterinarian can recommend the safest combination.

Conclusion

The best pet supplements on Chewy make it easier to support your dog's health with products designed for digestion, joints, skin, immunity, and everyday nutrition. Focus on supplements that match your dog's individual needs, contain quality ingredients, and come from trusted brands. 

Speaking with your veterinarian before adding a new supplement helps ensure the product fits your dog's overall care plan. Taking a few extra minutes to compare ingredients and formulations can help you choose the most suitable option for long-term wellness.