CBD Oil for Dogs UK: What Pet Owners Should Know Before Trying

November 12, 2025 · By Joseph Wilde

TLDR - CBD oil shows promise for helping dogs with anxiety, joint pain, and inflammation, though research is still emerging. In the UK, the safest approach is consulting your vet first, as they can legally prescribe appropriate CBD products under veterinary guidance. If you do intend to use CBD for dogs, it's best to start low - around 1-2mg per 10kg body weight - and look for THC-free, broad-spectrum hemp oil with third-party testing

More and more pet owners are turning to natural remedies to support their dogs’ health - and CBD oil is one of the top choices. But is CBD oil safe for dogs? How does it work, and what should you know before giving it to your furry friend?

How does CBD oil work for dogs?

CBD oil for dogs is made from hemp plants and formulated to be safe for pets. It contains cannabidiol (CBD), a natural compound that interacts with the endocannabinoid system - a part of your dog’s body that regulates mood, pain, appetite, immune function, and sleep. When used correctly, CBD oil can support your dog’s wellbeing without the psychoactive effects of THC - so there’s no “high,” just balanced support (PetMD, AKC).

What can CBD oil help with in dogs?

Although research is still ongoing, both studies and strong anecdotal evidence show CBD oil may help dogs with:

Pain relief and inflammation control - ideal for senior dogs or those with arthritis.
Anxiety and stress reduction - helpful for separation anxiety or fear of loud noises (AKC).
Appetite support - encouraging eating in dogs recovering from illness or under stress.
Seizure management - early evidence suggests CBD may help control seizures in epileptic dogs (Cornell Vet).

Is CBD oil safe for dogs?

Yes - when sourced from reputable brands and dosed correctly, CBD oil is generally safe for dogs. Most products are made from hemp with no or very low THC, avoiding intoxication (HumaneWorld).

Side effects are rare but can include mild sleepiness or dry mouth, especially at high doses. That’s why it’s important to start low and adjust slowly.

How much CBD oil should I give my dog?

Dosage depends mostly on your dog’s weight:

Small dogs (under 10 kg): 1-2 mg CBD per day
Medium dogs (10–25 kg): 2-5 mg CBD per day
Large dogs (over 25 kg): 5-10 mg CBD per day

Always begin with the lowest dose and monitor your pet’s response. Your vet can help tailor dosage for your dog’s individual needs.

How to give CBD oil to your dog?

CBD oil is easy to administer:

directly into the mouth with a dropper for best absorption,
mixed into food if your dog dislikes the taste,
infused into dog treats or snacks.

Just make sure you’re using CBD oil designed for pets - not human products that may contain ingredients like xylitol, which are toxic to dogs.

What to look for when buying CBD oil for dogs

To keep your dog safe and get the results you’re looking for, check that your CBD oil:

is THC-free or made from broad-spectrum hemp extract,
comes with third‑party lab testing for purity and potency,
is a pet‑specific formula with no artificial additives,
uses natural carrier oils like MCT or hemp seed oil.

Do I need to consult my vet before using CBD for dogs?

Although CBD use with dogs is becoming very common, we think it's still best to contact your vet. In the UK, the Veterinary Medicines Directorate classifies CBD for pets as veterinary medicines, and vets can prescribe appropriate products through the prescribing cascade.

Even though CBD oil is widely available, your vet can help you decide if it's appropriate, set the right dose, and check for interactions with other medications. While the regulatory landscape is still evolving, your vet remains the best source for guidance on using CBD safely with your dog. Many veterinary professionals are now more open to CBD for pets as research evolves (Cornell Vet).

The bottom line: CBD oil for dogs in the UK

CBD oil may offer a gentle, natural way to support your dog’s health, especially for anxiety, pain, and inflammation. With the right product and correct dosage, it can be a valuable addition to your dog’s wellness routine. As with any supplement, start low, monitor closely, and consult your vet if you have concerns.

Would you like us to add CBD oil for dogs to our product range? Let us know by email - your feedback truly matters to us.