Dog Vitamins & Supplements: What Your Dog Actually Needs

A calm, honest look at where a good diet ends and supplements begin — and why plant-based Omega-3 (DHA) is where most owners start.

Complete diet vs where supplements help

A good complete dog food is formulated to meet your dog's core nutritional needs. Where owners often see room for a targeted top-up is long-chain Omega-3 (DHA and EPA), which is naturally lower in many everyday diets. DHA provides nutritional support for skin and coat, joints, brain and heart health as part of a balanced diet.

Omega-3 (DHA) for puppies through seniors

• Puppies: DHA supports healthy brain and eye development.
• Adults: Supports a shiny coat and supple joints as part of a balanced diet.
• Seniors: Ongoing nutritional support for joints, brain and heart.

How to choose dog vitamins & supplements

• Quality sourcing — traceable ingredients, human-grade standards.
• Plant-based options — gentler on sensitive dogs.
• Clear, weight-based dosing.

Always consult your vet before starting a new supplement, especially if your dog is on medication.

Shop Petjesty Pure algae Omega-3 →

Related guides

• Do dogs need multivitamins?
• Best supplements for dogs (UK)
• Skin & coat supplements for dogs
• Joint supplements for dogs
• Senior dog supplements
• Omega-3 for dogs: benefits & dosage

Explore Pet Supplements or Cat Vitamins.