Dog Vitamins and Supplements Guide

Not all supplements are created equal. Here’s what science says about common dog supplements.

When Supplements Are Necessary

• Commercial diet deficiencies (rare with quality foods)
• Senior dogs with joint issues
• Dogs with specific health conditions
• Dogs with skin or coat problems
• Recovery from illness or surgery

Most Popular Supplements Evaluated

Glucosamine & Chondroitin

Effectiveness: Moderate

• May help with joint health
• Best for early arthritis
• Takes 4-6 weeks to see results

Omega-3 Fatty Acids

Effectiveness: High

• Supports skin, coat, joint, and brain health
• Choose fish oil with EPA/DHA
• Proper dosing important

Probiotics

Effectiveness: Moderate to High

• Supports digestive and immune health
• Beneficial after antibiotic treatment
• Strain-specific benefits

CBD Oil

Effectiveness: Under Research

• May help with anxiety and pain
• Choose pet-specific products
• Consult vet before use

Supplements Generally Not Needed

• Multivitamins (with balanced diet)
• Calcium (unless pregnant/lactating)
• Herbal supplements without vet guidance

Always Consult Your Vet

Before starting any supplement, discuss with your veterinarian—especially if your dog takes other medications.