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Top 5 Natural Remedies for Chickens Health

As backyard chicken keeping continues to grow in popularity, more owners are turning toward natural, holistic ways to keep their flocks healthy. Whether you’re managing parasites, supporting respiratory health, or trying to maintain consistent egg production, interest in natural chicken remedies has never been higher. lets explore the top 5 natural remedies for chickens, why they work, how to use them effectively, and when to exercise caution.

Oregano plant with purple flowers with green leaves in a garden setting. A bee is perched on a blossom, amidst vibrant greenery, conveying a serene mood.
Oregano is a great addition for the garden, for the bees, and the chickens.

Oregano for Chickens: A Powerful, Natural Antibiotic

Oregano is one of the most researched herbs in poultry health and is used in both backyard and commercial flocks.

Its key active components carvacrol and thymol offer antibacterial, antifungal, and antiviral benefits.

Benefits of Oregano for Chickens

  • Strengthens immune function

  • Reduces harmful gut bacteria

  • Supports respiratory health

  • May improve overall flock resilience

How to Use Oregano

Fresh Oregano

Planting Oregano in and around the coup will allow the chickens the chance to free range on this herb, taking as much as they want. Keeping this in balance with other fresh plants helps reduce overconsumption just because its the only fresh plant available.

  • Offer sprigs for natural foraging

  • Chop and mix through feed

  • Excellent for routine immune support

Dried Oregano

  • Mix 1/4-1/2 tsp per bird through daily feed

  • A stable, easy way to include oregano regularly


Oregano Infused Oil (NOT Essential Oil)

Oregano oil sold for culinary or livestock use is usually an infused oil, not an essential oil. This means oregano leaves have been steeped in a carrier oil (e.g., olive oil), creating a gentler, food-safe preparation.

Oregano Essential oil is a very hot oil, which should only be used with caution, never internally, and always diluted.

how to use infused oregano oil:

  • Mix into wet mash

  • Do not add infused or essential oils to drinking water.

Why Oregano Oil (or Any Oil) Should NOT Be Used in Chicken Water

There is a growing trend of using essential oils internally, through adding to water. This is some thing I DO NOT RECOMMEND. for yourself, or your animals.

1. Oils are not dispersible in water

They float on the surface, meaning:

  • They do not dilute. Even if you blend oil into the water, you are only breaking up the oil molecules to disperse in the water. Without an emulsyfying agent, the oils will come back out of solution and float back up to the top of the water.

  • Birds receive unpredictable, concentrated exposure

  • The oil sits on the water line where chickens drink

2. Risk of mouth and throat irritation

Undiluted oil exposure can cause:

  • Burning or irritation of the mouth

  • Throat discomfort

  • Reduced appetite or reluctance to peck

3. Decreased water intake

If the water tastes or feels irritating, chickens may:

  • Drink less

  • Become dehydrated

  • Develop heat stress more easily

  • Produce fewer eggs

This is especially risky in Hot weather, Sick or stressed birds and Chicks or smaller breeds

Three garlic bulbs with pinkish skins on a light surface, one peeled clove visible.
Fresh is best when it comes to garlic

2. Garlic for Chickens: Immune Support & Gentle Antimicrobial Action

Garlic (Allium sativum) is a staple in natural poultry care. Its active compound, allicin, provides broad-spectrum antimicrobial and immune-supportive effects.

Benefits of Garlic for Chickens

  • Supports immune strength

  • May help reduce worm burdens

  • Promotes cardiovascular wellness

  • Aids detoxification pathways


Why Crushing Garlic Freshly Is Essential for Chicken Immune Support

One of the key factors in using garlic effectively for chickens is understanding how its most active compound, allicin, is formed.

Allicin is responsible for many of garlic’s antimicrobial, immune-enhancing, and health-supportive properties, but it is only created when garlic is freshly crushed, chopped, or minced.

How Allicin Is Formed

Inside each garlic clove are two separate components:

  • Alliin  a stable sulphur-containing compound

  • Alliinase  an enzyme stored in different cell compartments

These remain separate until the clove is physically damaged.

When garlic is crushed or chopped, alliinase is released and reacts with alliin, producing allicin within seconds.

This natural “activation” process is what gives fresh garlic its strong smell and potent antimicrobial qualities.

Allicin is:

  • A broad-spectrum antimicrobial agent

  • Supportive of immune resilience

  • Known to reduce certain pathogenic bacteria

  • Useful during stress or immune challenges

However, allicin is highly unstable and begins to degrade within minutes, which is why freshly crushed garlic offers the greatest benefit.


How to Maximise Garlic’s Immune Benefits

  • Crush or mince cloves immediately before use

  • Allow the garlic to sit for 60–90 seconds

    • This gives alliinase time to convert alliin into allicin

  • Mix into feed or wet mash

  • Use small, evenly distributed amounts so all birds benefit

    • Mixing into mash or a treat ball ensures consistent intake

Why not put garlic in the water?

Adding garlic to water can:

  • vary in dosage

  • reduce palatability

  • lead to uneven consumption

  • Mash-based application is more controlled and effective.


What NOT to Do

  • Don’t use jarred, pre-minced garlic

    • Heat processing destroys alliinase, so almost no allicin forms

  • Don’t rely on garlic powder for immune support

    • It contains sulphur compounds but cannot generate active allicin

  • Don’t assume infused oils provide the same benefits

    • Allicin is water-soluble and does not form in oil


When Freshly Crushed Garlic Is Most Helpful

  • Seasonal weather shifts

  • Times when respiratory bugs circulate

  • Moulting

  • After stress events (predator scares, flock changes, transport)

  • As part of a broader parasite-support program

  • During immune challenges

Fresh, crushed garlic = maximum allicin + maximum immune support.


How Much Garlic per Chicken?

Garlic is potent, especially when freshly crushed so dosing should be small, consistent, and mixed through food rather than added to water.


General Safe Dose

1 clove of fresh crushed garlic per 4–6 chickens

This provides enough active allicin for immune support while avoiding:

  • reduced feed intake

  • digestive irritation

  • egg flavour changes

  • overly strong sulphur exposure


Breakdown by Flock Size

Small Flock (3–6 chickens)

  • 1 clove, freshly crushed, mixed into mash or a treat ball

Medium Flock (7–12 chickens)

  • 2 cloves, freshly crushed

Large Flock (12–20 chickens)

  • 2–3 cloves, depending on size and breed


Chicks or Young Pullets

  • Use ¼ of the adult dose

  • Mix well into mash so they don’t pick around it

  • Fresh cloves: Crush 1–2 cloves per litre of drinking water once or twice weekly

  • Chopped garlic: Mix into wet mash

Note: High doses can affect egg flavour. Use moderately in laying flocks. If your chickens are struggling with a health challange, sometimes the garlic eggs are an ok compromise. Keep these eggs for savory dishes, and not for cake!


What About Garlic Powder?

Garlic powder still contains many of garlic’s beneficial sulphur compounds, and it can offer mild digestive and cardiovascular support. However, because the drying and processing steps destroy alliinase, the enzyme needed to form allicin, powdered garlic does not produce the same antimicrobial punch as freshly crushed cloves. It can still be used as a gentle, long-term dietary addition, but it shouldn’t be relied on for periods of immune challenge, respiratory support, or when strong antimicrobial activity is desired.

Glass bottle of apple cider vinegar, whole and halved apples on blue cloth, green leaves, against a white brick wall background.

3. Apple Cider Vinegar (ACV): Gut & Respiratory Support for Chickens

Raw, unfiltered ACV, especially with “the mother”is a long-time favourite for improving gut health, respiratory wellness, and mineral absorption.


Benefits of ACV for Chickens

  • Supports healthy gut flora

  • Enhances calcium uptake for stronger eggshells

  • Helps maintain a mildly acidic environment that discourages some pathogens

How to Use ACV

  • Add 1 tablespoon per litre of water

  • Use only in plastic or glass waterers (ACV corrodes metal)

  • Offer ACV water 3–4 days per week

Avoid during heatwaves or when acidosis is a concern, as acidic water may reduce hydration in hot conditions.


find out more about ACV for chicken in this blog


4. Diatomaceous Earth (DE) for chickens: A Natural, Mechanical Parasite Controller


Diatomaceous earth is a powder made from fossilised diatoms. It works mechanically by damaging the exoskeleton of insects.

Benefits of DE

  • Helps control external parasites such as mites and lice

  • Reduces moisture and odour in coop bedding

  • Can improve overall coop hygiene

How to Use DE

  • Dust into bedding, nesting boxes, and around roosts

  • Add to dust bath mixtures alongside ash and herbs

Internal Use Caution

Despite widespread claims, scientific evidence does not support DE as an effective internal dewormer. It becomes inactive in the moist digestive tract.


Wear a mask when applying.

DE is dusty and can irritate lungs (including chickens’).


5. Herbal Dust Baths for chickens: Parasite Prevention + Stress Relief

Dust bathing is essential for a chicken’s hygiene and mental wellbeing. Adding herbs enhances parasite resistance and creates a calming, aromatic environment.

I like to use a finely ground powdered herbs mix, as this allows the herbs to come into contact with with skin. There is also more surface area of herbs. When we use a course herb mix, these large particles are less likely to contact the skin and provide topical benefits.

Best Herbs for Chicken Dust Baths

  • Lavender: calming, insect-repellent

  • Rosemary: antimicrobial, stimulates circulation

  • Mint: cooling, insect-repellent

  • Chamomile: soothing, anti-inflammatory

How to Use Herbal Dust Baths

  • Mix herbs with fine sand, DE (optional), and/or wood ash

  • Provide in a shallow, dry, sheltered area

  • Refresh herbs weekly or after rain

Bonus: They make the coop smell beautiful and create a more peaceful space.

Spoon with greenish-brown herb powder on white marble surface. Powder scattered around, suggesting a natural or organic product.
Herbs in the dust bath can help with parasite management.

Choosing the Right Natural Remedies for Your Flock

These five natural remedies are among the most researched, and most effective for improving chicken health naturally. When used correctly, they can support:

  • Immune function

  • Digestive strength

  • Respiratory wellness

  • Parasite resistance

  • Egg production and overall vitality

General Guidelines when using natural remedies for chickens

  • Use remedies in moderation and rotation

  • Monitor your birds for any changes in behaviour, appetite, or laying

  • Avoid combining multiple strong remedies at once


Natural care can be incredibly effective, but it works best when tailored, balanced, and backed by good husbandry.


If you need support for including natural therapies into your backyard flock, please reach out for a livestock consultation.


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