Vitamin D2
Also appears on labels as: vitamin d2 supplement, ergocalciferol
Ergocalciferol, the form of vitamin D made by plants and fungi. It serves the same purpose as vitamin D3, the animal form.
Watched ingredients get highlighted on every product panel you open.
- Where it comes from
- Made by exposing yeast or mushrooms to ultraviolet light.
- Why it's in the product
- Calcium absorption and bone mineralization.
- Safety and toxicity
- Essential in the right amount and harmful in excess. Vitamin D formulation errors are behind several large pet food recalls, so the dose matters far more than the form.
- Interactions and who should be careful
- Vitamin D toxicity signs include increased thirst and urination, vomiting, and appetite loss.
General reference, not veterinary advice. Dose, breed, and existing conditions change the answer, so talk to your vet before changing what your pet eats. Think we got this wrong? Tell us and we log it publicly.
Found in 3 scored products
Lowest scores first. Its presence here is not what drove those scores.
