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How Much CBD Should I Give a 100 lb. Dog?

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

The use of Cannabidiol (CBD) has seen a significant rise in recent years, not just for humans but also for pets. For dog owners with larger breeds, especially those who weigh around 100 pounds, there are many questions about the correct dosage of CBD. In this article, we will explore this topic in depth.

The Therapeutic Potential of CBD for Dogs

CBD, which is a non-psychoactive component of the cannabis plant, has been shown to have potential therapeutic effects. For dogs, it’s considered for various reasons including pain relief, anxiety reduction, and even for certain types of seizures. However, the effectiveness can vary based on the condition being treated, the quality of the CBD product, and the dog’s individual response.

The Recommended CBD Dosage For A 100 lb, Dog

Based on a general recommendation of 0.2 mg of CBD per pound of body weight, the suggested dose for a 100 lb. dog would be 20 mg.

Note: Always start with a smaller dose to monitor how your dog reacts. If you find that the initial dosage isn’t producing the desired effects, consider slowly increasing the dose by 20-30%.

Types of CBD Products Available

Here are the different types of CBD products you might consider for your pet:

  • CBD Oil: Allows for exact dosages and can be administered directly into the mouth or added to food.
  • CBD Treats: These are convenient but may contain varying concentrations of CBD.
  • CBD Capsules: Good for dogs that don’t like the taste of CBD oil.
  • CBD Topicals: These can be applied directly to the skin and are ideal for localized relief.

Factors That May Affect CBD Dosage

Several factors could influence the effectiveness of CBD:

  • Age: Younger dogs may react differently than older dogs.
  • Health Status: Existing conditions could affect how your dog responds to CBD.
  • Other Medications: Always consult your vet if your dog is already on medication.

How to Administer CBD

Different methods can affect the absorption rate:

  • Oral Administration: Placing CBD oil directly into the dog’s mouth is usually the most effective method.
  • Food Additive: Adding CBD to your dog’s food can make it easier to administer but might reduce its effectiveness.
  • Topical Application: Good for skin conditions but not ideal for systemic issues.

Observations and Adjustments

Once you’ve administered CBD, keep a close eye on your dog for any signs of changes. These could be behavioral or physical. Not all effects are immediately visible, especially for conditions like chronic pain. If you don’t observe any changes or if the condition seems to worsen, consult your veterinarian for advice. You may need to adjust the dosage, potentially increasing it by 20-30%.

Importance of Veterinarian Consultation

Your veterinarian knows your dog’s medical history and can provide the most accurate advice. Even if CBD is generally considered safe, it can interfere with other medications your dog might be taking. Hence, a vet consultation is crucial before you begin any CBD treatment.

Potential Side Effects

CBD is usually well-tolerated in dogs, but potential side effects can include drowsiness, dry mouth, and in some rare cases, liver issues. Any unusual behavior should be noted and discussed with your vet.

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


For a 100 lb. dog, based on the general guideline of 0.2 mg per pound, the recommended CBD dosage would be 20 mg. It’s advisable to start with a lower dosage and to observe your dog’s reaction before increasing the amount. Always consult your veterinarian for specific guidance, especially if your pet is already on prescription medication or has existing health issues. Through careful planning and consultation, you can help ensure a safer and more effective CBD experience for your dog.

Additional CBD for Dogs Resources

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