Can dogs eat feta cheese?

The detail

Feta is a brined cheese, traditionally made from sheep's or goat's milk, cured in a salty brine rather than aged the way cheddar is. That curing process is what sets it apart from most cheeses on this site's cheese page: nutrition data commonly puts feta at around 1.1g of sodium, roughly 2.7g of salt, per 100g, against about 1.8g of salt for the same weight of cheddar. The brine is not incidental either: it is the preservation method, which is why feta tastes noticeably saltier than a block of cheddar even before any is added at the table.

Fat is broadly similar to other cheeses, at around 20 to 21g per 100g, so feta is not unusually fatty by cheese standards. Salt is the specific reason it earns its own page here rather than sharing the generic cheese one, and it is the figure worth remembering if a dog gets into more than a crumb or two at a family gathering.

Like most dairy, feta carries lactose, and VCA Animal Hospitals notes that lactose intolerance is common in dogs, with diarrhoea, bloating and abdominal discomfort the usual signs after eating dairy. Feta's crumbly texture also makes it easier for a dog to eat a larger amount quickly than a solid block of cheddar, which is worth bearing in mind at a picnic or a barbecue table where a whole tub can end up within reach of the floor.

None of this makes feta dangerous in the way blue cheese is. There is no roquefortine C in feta, the toxin that makes stilton and Roquefort a genuine emergency, so a stray crumb or two off a salad plate is not a reason to panic. A whole bowl left within reach, or a block eaten in one go, is a different situation, and the size of the incident is what should guide how urgently you act rather than the fact that cheese was involved at all.

Feta compared with other cheeses

Feta is saltier than most everyday cheeses. Typical figures put feta at around 2.7g of salt per 100g against roughly 1.8g for cheddar, which means the same-sized piece of feta carries meaningfully more sodium for the same mouthful.

It is not, however, in the same danger category as blue cheese. Stilton and Roquefort contain roquefortine C, a genuine toxin covered on our cheese page, and feta carries no such compound. The concern here is salt and lactose, not a poison.

Soft cheeses generally sit between the two extremes. A plain cream cheese or mozzarella carries less salt than feta but more lactose, so no single cheese is automatically the safest option in every category, and checking the label is worth the ten seconds it takes.

Flavoured feta: garlic, herb and chilli varieties

UK supermarkets sell feta blocks flavoured with garlic, herbs or chilli, and the garlic versions are a genuine problem rather than just a taste preference. Battersea's toxic food guidance lists the onion family, which includes garlic, as toxic to dogs whether it is dry, raw or cooked.

Plain feta with nothing added is the only version worth considering for a dog, and even then only in the small amounts described above. Check the packet before crumbling any flavoured block near a begging dog.

Herb-only versions, with nothing but oregano or mixed herbs added, are a smaller step up in risk than garlic ones, but they are still not a reason to feed more than the plain cheese amounts described in the portions table.

Feta in a Greek salad

A Greek salad brings more to worry about than the cheese alone. Red onion is a standard ingredient, and Battersea lists onion as toxic to dogs regardless of how it is prepared, so a dog that raids the salad bowl has eaten more than feta and olives.

If your dog steals a mouthful of salad, try to work out roughly how much onion was in it as well as the cheese, since that changes how urgently you need to ring your vet about it.

Olives themselves are generally fine in small amounts, plain and pitted, so it is specifically the onion and any dressing that turns a stolen forkful of salad into more than just a feta question. A vinaigrette heavy in oil adds a further fat load worth counting alongside the cheese.

Feta and lactose-sensitive dogs

Many adult dogs lose the enzyme that digests lactose after puppyhood, and VCA Animal Hospitals lists diarrhoea, bloating and abdominal discomfort as the usual result of dairy in a lactose-intolerant dog.

If your dog has ever had a soft stool after cheese or milk, feta is not the cheese to test that reaction with again. A firmer, aged cheese in a smaller amount tends to sit easier on a sensitive stomach, though it is still not salt-free either.

A dog that reacts to feta specifically, rather than dairy generally, may simply be reacting to the extra salt rather than the lactose, since a large salty portion can cause loose stools on its own.

Puppies still produce more of the lactose-digesting enzyme than most adult dogs, which is why a small amount of dairy is sometimes better tolerated at that age, though the salt concern applies regardless of how old the dog is.

Feta brine: is it safe for dogs?

No. The liquid a block of feta sits in is a concentrated salt solution, closer to brine than to the cheese itself, and it is worth keeping well away from a dog even if the cheese is being shared responsibly.

If a tub of feta in brine tips over and a dog laps at the liquid, offer fresh water and watch for excessive thirst, vomiting or diarrhoea, and ring your vet if your dog seems unwell or if a large amount was drunk.

Draining and rinsing crumbled feta under the tap before offering a crumb removes some of the surface brine, in the same way rinsing a tinned food can reduce added salt, though it does not remove the salt already absorbed into the cheese.

The brine itself has no nutritional use for a dog, so there is no reason to save it for the bowl once the block is finished. Pour it away rather than leaving the empty tub somewhere a curious dog can tip it over.