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Claim evidence

Essential for bone, immune and cardiac health

Grade AStrong canine evidenceSave claim
Ingredient: Vitamin D3 · vitamin

Plain-language summary

Deficiency and excess both harmful; supplement only when a diet is measured-deficient.

About the ingredient

What it is

Fat-soluble vitamin.

Why it's used

Included in multivitamins. Excess is possible.

Also known as: Cholecalciferol

Cited studies (1)

Canine studies
  • Serum 25(OH)D status and disease outcomes in dogs
    Journal of Veterinary Internal Medicine · 2018
    Save studyA
    Study summary
    Very limited quality
    Design score 2/11
    Design
    review
    Species
    dog
    Sample size
    Not reported
    Duration
    Not reported
    Controls / blinding
    Not reported
    Funding
    Not reported
    Strengths
    • Conducted in dogs
    Limitations
    • Sample size not recorded
    • No control group recorded
    • Study duration not recorded

    Outcome: Both deficiency and excess linked to disease

Products in our catalog with Vitamin D3 (0)

No published products in Supplement Wise list this ingredient yet.

Educational information only. Not veterinary advice. Grades reflect published dog research and reviewer consensus, not marketing.