If you’ve been exploring medical cannabis, you’ve probably heard of CBD and THC. But there’s another cannabinoid that’s gaining attention: CBG. Short for cannabigerol, CBG is sometimes called the “mother of all cannabinoids” because it plays a key role in how the cannabis plant produces its most well-known compounds.
Although it’s less abundant than CBD or THC, early research suggests CBG may have several potential health benefits, making it an exciting option for medical cannabis patients in the UK. In this blog, we’ll explain what CBG is, how it works, potential benefits, and what patients should know before trying it.
CBG stands for cannabigerol, a naturally occurring cannabinoid in the cannabis plant. Unlike THC, CBG does not produce a high, so it’s non-intoxicating. This makes it a popular choice for patients who want the potential health benefits of cannabis without feeling psychoactive effects.
CBG is sometimes called the “mother of all cannabinoids” because it’s the building block for other cannabinoids like CBD and THC. Its acidic form, CBGA, transforms into these compounds as the cannabis plant grows.

CBG interacts with the endocannabinoid system (ECS), a network of receptors in the body that helps regulate important functions like:
Specifically, CBG may influence:
While research is still ongoing, these interactions suggest that CBG could support balance and wellness in the body.
Early studies show that CBG may have a variety of promising health benefits, including:
It’s important to remember that research is still in the early stages, so we don’t yet have definitive evidence for all of these benefits.

CBG and CBD share similarities—they are both non-psychoactive—but they also have distinct properties:
Some patients may find that combining CBG and CBD enhances the potential benefits of both cannabinoids.
CBG products are generally legal in the UK as long as they contain less than 0.2% THC. They can also be prescribed by a doctor as part of a patient’s medical cannabis treatment plan.
While CBG is non-intoxicating, safety is important:
CBG is an emerging cannabinoid with promising health potential, but research is still ongoing, and over-the-counter products aren’t a substitute for medical supervision.
At CB1 Medical, we provide patients with legally prescribed, clinically monitored cannabis products, ensuring quality, safety, and personalised guidance.
If you’re considering medical cannabis in the UK, always seek advice from a specialist clinic.
Try our free Eligibility Checker to see if medical cannabis could be right for you.