Can Chickens Eat Cheese?

In moderation — small amounts of cheese are fine, but chickens digest dairy poorly.

Reviewed against extension and veterinary guidance · Last reviewed July 2026

Verdict

In moderation

⚠ Chickens digest lactose poorly — too much dairy causes digestive upset. Keep portions tiny.

The details

Chickens lack the enzymes to digest lactose well, so large amounts of dairy can cause loose droppings. A little cheese is a protein- and calcium-rich treat that most flocks love, and harder or fermented cheeses have less lactose. It is a small treat, not a regular food.

How to serve it

Offer occasional small crumbles of hard cheese. Avoid soft, very salty, or heavily processed cheese.

Treat rules that apply to everything

Whatever you're feeding, the 90/10 rule is the one to remember: at least 90% of a hen's intake should be balanced layer feed, and no more than about 10% treats and scraps. Layer feed is formulated to deliver the protein and calcium that eggshells and feathers are built from — pile on the treats and you dilute it, which shows up as thin shells and a slowed-down lay.

That is a stricter limit than it sounds. Ten percent of a dozen hens' daily feed is only about 4.8 oz of treats — for all twelve birds combined, not each. Work out the limit for your own flock with the chicken treat calculator.

Chickens have no teeth: they grind food in the gizzard using grit. Birds that free-range pick up their own, but a confined flock needs insoluble grit available whenever they eat anything beyond feed. Introduce any new food in a small amount and watch the flock for a day — droppings are the quickest tell that something didn't agree with them.

Two rules that override everything else: never feed anything mouldy, since some moulds produce mycotoxins that can kill a bird, and never feed heavily salted, sugary, or processed human food. If you wouldn't eat it, it doesn't go in the run.

Frequently asked questions

Can chickens eat cheese?
In moderation — small amounts of cheese are fine, but chickens digest dairy poorly. Chickens lack the enzymes to digest lactose well, so large amounts of dairy can cause loose droppings. A little cheese is a protein- and calcium-rich treat that most flocks love, and harder or fermented cheeses have less lactose. It is a small treat, not a regular food.
How should I feed cheese to chickens?
Offer occasional small crumbles of hard cheese. Avoid soft, very salty, or heavily processed cheese.
Can baby chicks eat cheese?
In small amounts, once chicks are around two weeks old. Because cheese is only a "sometimes" food for adults, keep it to an occasional taste for chicks, and offer chick grit so they can digest it.
How much of a chicken's diet can treats be?
Follow the 90/10 rule: at least 90% of what a chicken eats should be balanced layer feed, with treats and kitchen scraps making up no more than about 10%. The feed carries the protein, calcium, and micronutrients that keep hens laying — treats dilute all of that if they take over.

Can chickens eat…?

Sources

Verdicts follow established poultry nutrition and veterinary toxicology — the toxic compounds named on these pages (persin, theobromine, solanine, thiosulphate, phytohaemagglutinin, oxalic acid) are documented, not folklore. Last reviewed July 2026.