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How Much CBD Should I Give a 40 lb. Dog?

Written by: Arlene D.
| Published on August 30, 2023

As the popularity of CBD (Cannabidiol) products for pets continues to rise, many dog owners are exploring this natural alternative for various health and behavioral issues in their furry companions. This article will guide you on the recommended dosage of CBD for a 40 lb. dog, considering a standard dosage guideline of 0.2 mg per pound of body weight.

Why Consider CBD for Dogs?

CBD has gained attention for its potential therapeutic effects, which include anti-inflammatory, anti-anxiety, and even anti-cancer properties. Derived from the hemp plant, CBD does not contain THC—the compound responsible for the psychoactive effects of cannabis—making it a non-intoxicating option for pets.

Recommended CBD Dosage For A 40 lb. Dog

The suggested dosage of CBD for a 40 lb. dog, based on a standard dosage of 0.2 mg per pound, is 8.0 mg.

Note: Starting with a smaller dosage is advisable to gauge your dog’s reaction. If no observable effects are seen, you may consider increasing the dosage incrementally by 20-30%.

Types of CBD Products for Dogs

There are various forms of CBD available for dogs, including:

  • CBD Oil: Allows for accurate dosing and can be administered directly or mixed with food.
  • CBD Treats: Convenient but offers less precise dosing.
  • CBD Capsules: Suitable for dogs that might not like the taste of CBD oil, but require precise dosing.

Factors Affecting CBD Dosage

Several variables can influence the effectiveness of CBD:

  • Age: Younger dogs may metabolize CBD differently compared to older dogs.
  • Health Condition: The severity of the issue can necessitate a higher or lower dose.
  • Other Medications: Consult your vet if your dog is taking other drugs, as there can be interactions.

Methods to Administer CBD

You can give CBD to your dog in several ways:

  • Direct Oral Administration: Most effective, but some dogs may resist it.
  • Mixing with Food: Easier to administer, especially with picky eaters.
  • Topical Applications: Best for skin conditions or localized pain relief.

Monitoring Your Dog’s Response

After administering CBD, observe your pet closely for any changes in behavior, activity level, or physical symptoms. This will help you determine whether the dosage is effective or needs adjustment.

The Importance of Consulting a Veterinarian

Though CBD has shown promise in pet wellness, it’s essential to consult a qualified veterinarian for personalized advice, especially if your dog is on other medications or has existing health conditions. They can provide you with insights tailored to your dog’s specific health status and needs.

The Top Rated CBD Oil Recommended by iHeartDogs

iHeartDogs recently reviewed the best CBD oils for dogs and the best CBD treats for dogs. Our top-rated oil is the Cannanine brand, which we love for it’s Clean Label Project approval and 3rd Party Testing for every batch. In addition, each and every bottle sold provides 7 meals for homeless pets!

Cannanine 500mg CBD Oil


When considering the dosage of CBD for a 40 lb. dog, the general guideline suggests 8.0 mg. However, it’s wise to begin with a smaller dose to assess your dog’s reaction, gradually increasing it by 20-30% if needed. Always bear in mind that each dog is unique; therefore, responses to CBD can vary. Consulting your veterinarian is crucial for determining the most appropriate dosage and form of CBD suitable for your dog’s individual circumstances.

By understanding these principles, you are well on your way to making informed decisions about using CBD as a potential health supplement for your pet.

Additional CBD for Dogs Resources

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