Can dogs eat mackerel?
✓ Reviewed against PDSA, Blue Cross & Animal PoisonLine guidance · Last updated: 2026-06-17
How we keep this site free. Some links on this page take you to Amazon or other online retailers (including vet pharmacy partners Best Vet Care and Canada Pet Care via CJ Affiliate, and treat/supplement brands via AWIN). As an Amazon Associate and CJ/AWIN publisher we may earn a commission at no extra cost to you. Full disclosure.
The full picture
Mackerel is another omega-3-rich fish that's great for dogs in moderation. It's higher in fat than some white fish so use in smaller portions for pancreatitis-prone dogs. Fresh mackerel should be fully cooked — never raw. Tinned mackerel in spring water or tomato sauce (no onion) is fine. Smoked mackerel is a hard no — too salty and sometimes contains preservatives. Always check for bones. Like sardines, a couple of times a week is great for skin, coat, and joints.
Check individual ingredient safety at 247IngredientsCheck.
Risks to watch for
- Smoked mackerel too salty
- Bones are a choking risk
- High fat if overfed
Potential benefits
- Omega-3
- Vitamin D, B12
- Protein
Safe portion size
A small piece of plain cooked mackerel, a couple of times a week.
Does size or breed matter?
No specific breed sensitivity to plain, cooked mackerel. Portion should scale with body size — smaller dogs need smaller amounts both for calorie control and because any mercury or sodium content (relevant for tuna and some preserved fish) has proportionally more impact on a smaller body. Always check for and remove shells or bones before serving.