vitamin d3 supplement

Vitamin

Vitamin D3 is the vitamin pets can't sunbathe for — dietary by necessity, dangerous in excess, and the cause of real recalls when premix math goes wrong.

Also appears on labels as: vitamin d3 · cholecalciferol · vitamin d supplement

What it is

Cholecalciferol, the calcium-regulating hormone precursor. Unlike humans, dogs and cats synthesize almost no vitamin D in their skin — sunshine doesn't help them; the diet is the supply. It's also the classic fat-soluble hazard: excess D drives blood calcium up, injuring kidneys.

Why it's in pet food

An absolute requirement with no cutaneous backup. The margin story is real: vitamin D premix errors have caused genuine FDA recalls of dog foods — too much, not too little — making D the vitamin where manufacturing quality control earns its keep most visibly.

How Bowlmark scores it

Scores are deterministic math over the printed label — the rules below apply to every product identically, and nothing estimates or fills in a blank.

Neutral in the engine — dose errors are manufacturing events no ingredient list reveals, which is precisely what the recall-alert side of this product watches instead. Household corollary: cholecalciferol RODENTICIDES are among the most dangerous poisonings in veterinary medicine, and human D supplements in quantity are the same story — suspected ingestion of either is an emergency call, not a wait-and-see.

For dogs

Signs of D excess arrive days late (thirst, vomiting, weakness) after the calcium has already climbed — which is why suspected rodenticide or supplement raids get the immediate call.

For cats

Same physiology, same rule: diet supplies D, excess harms kidneys, and rodenticide exposure is an emergency.

Read the full methodology

Foods that list vitamin d3 supplement

Ranked by score where scores exist. Placement here is never sold.

Compare foods that list vitamin d3 supplement

Same species, same form, both scored — closest scores first, so the comparison is a real one.

Scan a food yourself Browse every comparison

Sources

Cite this page

Bowlmark. "Vitamin d3 supplement in pet food — what it is and how it scores." https://www.bowlmark.com/ingredient/vitamin-d3-supplement

Engine: Methodology engine v1.1.0 · config 13c99e2f
Verified: Last verified August 12, 2026

No stored score to stamp yet — the engine and config above are the ones a scan runs today.

How the engine works Citation registry