Fat-soluble vitamin minimums for dogs and cats
Fat-soluble vitamins (A, D, E) carry both minimum and, often, maximum levels because excess is toxic. The three standards below are expressed in IU/kg dry matter (IU/kg DM) so they sit on one comparable basis; NIAS raw values (per 100 g DM) are converted to IU/kg DM by ×10 and labelled. Every figure is verbatim from the cited topic.
Dog — adult maintenance (IU/kg DM)
| Vitamin | AAFCO 2026 | FEDIAF 2025 | NIAS 2024 |
| --- | --- | --- | --- |
| Vitamin A (min / max) | 5000 / 250000 | 6060 / 400000 | 5000 / 400000 |
| Vitamin D (min / max) | 500 / 3000 | 552 / 3200 | 500 / 3200 |
| Vitamin E (min) | 50 | 36 | 36 |
AAFCO sets no vitamin E maximum; FEDIAF sets none for adult dog either.
Cat — adult maintenance (IU/kg DM)
| Vitamin | AAFCO 2026 | FEDIAF 2025 | NIAS 2024 |
| --- | --- | --- | --- |
| Vitamin A (min / max) | 3332 / 333300 | 3330 / 400000 | 3330 / 400000 |
| Vitamin D (min / max) | 280 / 30080 | 250 / 30000 | 250 / 30080 |
| Vitamin E (min) | 40 | 38 | 38 |
The headline contrasts
- Vitamin D ceilings diverge sharply. Cats tolerate a far higher vitamin D maximum (AAFCO 30080, NIAS 30080 IU/kg DM) than FEDIAF's 30000 IU/kg DM ceiling. For dogs the three ceilings sit close together (AAFCO 3000, FEDIAF 3200, NIAS 3200 IU/kg DM).
- Vitamin A and E minimums are near-identical across the three standards once reconciled to IU/kg DM (e.g. dog vitamin A 5000 / 6060 / 5000; vitamin E 50 / 36 / 36 — FEDIAF and NIAS raw values are published per 100 g DM and converted ×10).
- (Corrected 2026-09-21: the FEDIAF column previously showed raw per-100 g DM values unreconciled; fixed with the
life_stage_nutrient_matrix_vitaminssource topic.) - Vitamin E has no maximum under AAFCO or NIAS for either species.
Sources
life_stage_nutrient_matrix_vitamins— AAFCO 2026 / FEDIAF 2025 / NIAS 2024 fat-soluble vitamin A/D/E min (and max) for adult dog and cat, in IU/kg DM; FEDIAF and NIAS ×10 conversions noted.