GrubTerra®

“I read that 64% of backyard flocks have coccidia and immediately went out to look at my hens.”

— Hannah D., Peck Purity customer who saw improvement within 24 days

Backyard hen pulling an earthworm out of the soil
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Researchers tested 64 backyard flocks whose owners said their chickens were healthy. 64% had coccidia.

Overhead view of a backyard flock with about two thirds of the hens circled

That was a 2021 survey, and not one of those birds looked sick. Coccidia is a tiny gut bug. Many of the same flocks also showed signs of worms: about 1 in 4 had Capillaria, and 1 in 5 had roundworms.

A healthy-looking hen is not proof of a healthy gut. Both bugs live in her gut, where the trouble starts long before you see anything.

“My hens were laying less and I kept wondering if it was worms.”

— Gary W., Peck Purity customer who saw results within 32 days

A single egg in an empty nest box

She still eats. Her feathers look fine. But the nest box is coming up empty more often. Worms and gut bugs live inside her gut, and they feed on what she eats before her body gets to use it.

Less food for her means less energy to produce eggs. When laying slows and you can't find a reason, her gut is the first place to look.

“Nobody told me my chickens could have worms and still look perfectly fine.”

— Angela S., Peck Purity customer who saw results within 19 days

A healthy-looking hen with worms illustrated inside her gut

Coccidia and worm eggs are so small you need a microscope to spot them. They sit in dirt, bedding, and droppings. A hen pecks the ground, swallows a few, and the bugs grow in her gut. Then new eggs drop right back into the run.

Every flock that touches dirt gets exposed. You can't stop that. What you can do is give her daily gut defense, with natural ingredients that lowered worm and coccidia counts in poultry studies.

You Can't Stop Her From Picking Them Up. You Can Defend Her Gut.

Peck Purity Daily Gut Defense bag next to a healthy hen, with a Formulated by a Doctor in Poultry Nutrition badge

She could be picking up new gut bugs every day. Each time she pecks the ground, she might swallow something that can cause harm inside. That is why you need to stay one step ahead and protect her gut every day.

Peck Purity is a daily gut defense. Every scoop has two natural ingredients that scientists have tested on chickens.

The first is yucca, a desert plant. In one study, chickens with coccidia that ate yucca ended up with almost 6 times less infection than chickens that didn't.

The second core ingredient in Peck Purity is food-grade diatomaceous earth, a fine natural powder. In a separate study, hens that ate it every day had fewer parasites by the end of the study than hens that didn't.

Peck Purity is simple. It's a food-grade powder you sprinkle onto the feed. No syringes, no catching birds, and no egg withdrawal.

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★★★★★1,490 Total ReviewsReal Flocks. Real Results.

Smiling keeper holding a basket of eggs next to her hens and a bag of Peck Purity
Martina A.✓ Verified
★★★★★

“Noticed significant improvement of dirty vents before 30 days!”

Patricia P.✓ Verified
★★★★★

“More firm poop and fluffy butts. What could be better?!”

Scot N.✓ Verified
★★★★★

“Noticing fewer nasty butts, definitely improving.”

1,871+ flock owners are on the monthly scoop subscription, with 1,490 reviews — and every bag is backed by our 90-Day Money-Back Guarantee.

What To Expect, Week By Week.

Coop wall calendar with weeks crossed off above a bag of Peck Purity and a feed scoop
Week 1
Getting Started

Add one scoop to the feed. Her gut starts getting daily defense, and you might see your girls start to perk up.

Week 2
First Changes

Old problems slowly start to clear up. Watery droppings, dirty eggs and poopy butts are usually the first things to turn around.

Weeks 3–4
A Big Difference

Many keepers see a big drop in watery droppings, dirty eggs and poopy butts as her gut gets back on track.

Weeks 5–6
Feeling Good Again

For many flocks, those problems are mostly gone by now, and your hens are acting like themselves again.

Weeks 7–8
Happy Flock, Happy Family

Clean eggs, clean butts, and a flock that feels good. One scoop a day keeps it that way.

Every flock is different. That's why you get 90 days to see it for yourself.

Try It For 90 Days. Love It Or It's Free.

Peck Purity bag with 90-day money-back guarantee and eggs

You don't have to decide today if it works. Your flock gets 90 days to show you.

Feed Peck Purity for three full months. If you don't see a difference, you get a full refund.

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Peck Purity bag with chickens feeding

Clean feathers, no catching required.

90-day money-back guarantee. Free shipping on orders over $100.

Peck Purity™ — 1 lb bag · about one month for 4–8 birds
Ingredients: plant protein products, diatomaceous earth, Yucca Schidigera extract, mineral oil, natural flavors
No injections. No harsh chemicals. Nothing to catch a bird for.
One scoop daily. Mixes into feed.
From GrubTerra (1,490 reviews · 4.7 stars · 1,871+ flocks served)
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90-Day Money-Back Guarantee — feed it for three full months. If it isn't the change you hoped for, we refund you. No catch.

Common Questions

Let's clear this up before you order.

No. Peck Purity is a non-medicated daily feed supplement, not a medicine. If a bird is visibly sick — bloody droppings, hunched, not eating — call a vet right away. What Peck Purity does is daily gut support, built on ingredients studied in chickens under coccidia pressure.

No. It is a daily feed supplement, not a medicine. If you think a bird has a heavy worm load, ask a vet about a fecal test. Peck Purity supports the gut every day with ingredients studied in chickens.

Keep it to a 2% inclusion rate at most. In simple terms: mix one 1 lb bag into a 50 lb bag of feed, or half a bag into a 25 lb bag.

No. Peck Purity is a non-medicated feed supplement, not a medication — you keep collecting and eating eggs the whole time.

Two things. Raw DE puffs into a dust cloud the moment you scoop it, which is unpleasant for your lungs and worse for a chicken's respiratory system — ours is lightly coated in food-grade mineral oil so it stays put. And raw DE is one ingredient. Peck Purity pairs it with Yucca Schidigera extract, plus natural flavors so the birds will actually eat it consistently.

Because the research is not there. Capsaicin has no peer-reviewed studies in chickens for parasite control, and garlic was tested directly — a 2011 Poultry Science trial gave 450 infected chickens allicin at the recommended dose and at ten times the recommended dose, and both groups ended up with the same worm load as the untreated controls. We built the formula around ingredients with published poultry research behind them instead.

Yes — that's what the natural flavors are for. A supplement only works if it goes down consistently, and picky flocks are the main reason daily routines fall apart.

Give it about two weeks of daily feeding before you judge it. It's gradual, not dramatic — and it works the way a daily habit works, which means it only keeps working if you keep doing it.

Peck Purity is a non-medicated poultry feed supplement. It is not intended to diagnose, treat, cure, or prevent any disease.