Oregano for Dogs: A Complete Guide
While European wild dogs would have occasionally chewed on wild marjoram (oregano’s cousin), it was never a staple until it was popularised by the ancient Greeks as an antiseptic and digestive aid for both humans and their animals. They and subsequent civilisations relied heavily on botanical formulas. If a dog suffered from an upset stomach, respiratory congestion or open wounds, they would apply or feed traditional herbs — including oregano — to leverage its natural antibacterial and anti-inflammatory properties.
This practice largely ceased in the late 19th century when veterinary medicine pivoted away from herbalism to synthetic pharmaceuticals. But pet parents have once again begun reintroducing herbs such as oregano. It has gained massive popularity because it is a nutritional powerhouse, packing up to four times the antioxidant levels of blueberries.
Can dogs eat oregano?
Yes, dogs can eat oregano, says our in-house dog nutritionist. Feeding your dog oregano provides powerful antioxidant, antimicrobial and anti-inflammatory benefits that support your dog’s immune system and benefit its overall health.
What are the health benefits of feeding a dog oregano
Key health benefits of oregano for dogs include:
- Fights free radicals: oregano is exceptionally high in antioxidants like rosmarinic acid and thymol which neutralise unstable molecules to help protect cells from long-term damage.
- Natural antimicrobial: the active compound carvacrol acts as a natural shield against harmful bacteria such as Salmonella and E. coli and fungal infections.
- Reduces joint inflammation: its anti-inflammatory properties can help soothe mild, age-related joint stiffness and support overall mobility.
- Aids digestion: it can help reduce gas and bloating, calming mild gastrointestinal discomfort.
A tiny pinch of dried oregano delivers essential vitamins and minerals that complement your dog’s diet:
- Vitamin K: crucial for healthy blood clotting and bone strength.
- Iron & manganese: support cellular energy production and metabolic health.
- Calcium: promotes strong bones, teeth and muscle function.
- Fibre: aids in smooth regular bowel movements.
How much oregano to feed a dog
- Small dogs: a pinch.
- Medium dogs: up to a 1/4 teaspoon.
- Large dogs: up to 1/2 teaspoon.
How to feed a dog oregano
To feed your dog oregano use fresh or dried herbs. While oregano contains beneficial antioxidants and antimicrobial properties, overfeeding can cause severe gastrointestinal upset.
Finely chop fresh organic leaves or use dried organic oregano and mix it directly into your dog’s food or home-baked treats. You can also steep a pinch of oregano in hot water, let it cool and trickle a small spoonful over its food.
Note. Never give your dog undiluted oregano essential oil or high-concentration commercial oil of oregano internally. It is highly potent, can cause intense stomach irritation, and is considered toxic to dogs if improperly dosed.
While some holistic guides detail precise drop-by-drop dilution methods with carrier oils, you should never attempt this without direct supervision from a holistic veterinarian).
Do not feed oregano to dogs that are pregnant, diabetic, prone to seizures or scheduled for an upcoming surgery.
Search our Oregano recipes:
Frequently asked questions
Q. What are the health benefits of oregano for dogs?
A. Oregano acts as a “super-herb” providing several health benefits:
- Antioxidant power: packed with flavonoids and polyphenols (like carvacrol and thymol) that neutralise free radicals and fight systemic inflammation.
- Antimicrobial & antifungal properties: Can help combat harmful gut bacteria like E coli and inhibit yeast infections (Candida).
- Digestive aid: known to help alleviate mild bloating, wind, indigestion and symptoms of Small Intestinal Bacterial Overgrowth (SIBO).
- Immune & respiratory support: traditionally used as an expectorant to clear mucus and assist with mild cold-like symptoms.
Q. How much oregano can I give my dog?
A. You should only provide a small pinch as an occasional treat. If using dried oregano as a daily supplement, adhere to these strict limits based on weight: [1, 2, 7]
Dogs under 9kg (20lbs): 1/4 to 1/2 teaspoon.
Dogs 9-23kg (20 to 50lbs): 1/2 to 1 teaspoon.
Dogs over 23kg (50lbs): 1 to 1 1/2 teaspoons.
Q. Can dogs have oregano oil or essential oil?
A. No. Never give your dog pure, undiluted oregano essential oil. It is highly caustic and toxic, causing severe irritation to the mouth, oesophagus and stomach lining, as well as potential liver damage.
Q. Are there any dogs that should never have oregano?
A. Yes. Avoid feeding oregano to:
- Pregnant or nursing dogs: sudden dietary changes or strong herbal phenols can interfere with pregnancy.
- Dogs with seizure disorders: certain concentrated compounds in herbs can trigger or lower the threshold for seizures.
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