Last updated: June 2026
CBD is everywhere — and it’s natural for parents to wonder whether it’s safe or appropriate for children. The short answer: it’s a nuanced area, with important legal, safety and medical considerations. Here’s everything you need to know.
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Is CBD for children legal in the UK?
There is no UK law that explicitly prohibits parents from giving CBD to children. However, UK trade bodies recommend that CBD products should only be purchased and used by adults aged 18 and over. Children cannot legally purchase CBD products themselves. Parents who choose to give CBD to their children should do so with medical advice and under clinical supervision.
Read more: Is CBD legal in the UK?
Potential benefits of CBD for children
CBD has been studied for a range of paediatric applications. While it is not a medicine in over-the-counter form, clinical research points to some specific areas of interest:
CBD for epilepsy
The strongest evidence for CBD in children is in epilepsy. The prescription medicine Epidiolex — a purified CBD extract — is licensed in the UK for Dravet syndrome and Lennox-Gastaut syndrome, rare severe childhood epilepsy syndromes. Research shows it can significantly reduce seizure frequency. However, OTC CBD supplements are not approved to treat epilepsy and should not replace prescribed Epidiolex. Epilepsy Action advises parents to always inform their specialist before giving any CBD to a child, given potential interactions with anti-seizure medications.
CBD for autism (ASD)
A 2018 Israeli study found that CBD-rich cannabis extract improved sleep and reduced hyperactivity in approximately 70% of children with autism spectrum disorder under medical supervision. These findings are promising but do not mean CBD is a treatment for autism — the research is preliminary and clinical oversight is essential.
General wellbeing and sleep
Parents report using CBD to support sleep and reduce anxiety in children — particularly those with heightened sensory sensitivity or anxiety disorders. Long-term safety data in children is limited, so this should always be discussed with a clinician.
Is CBD safe for children?
CBD appears to have a good safety profile in adults and has not shown serious side effects in most paediatric studies. However, long-term safety data for children is limited. Key safety principles:
- Always use organic, independently lab-tested products with confirmed 0% THC and no contaminants
- Always ensure clear dosage information on the label
- Start at the lowest possible dose and increase only with medical guidance
- Always inform your child’s GP, paediatrician or specialist before starting — especially if your child takes any medications, as CBD can interact via CYP450 enzymes
Hospitals including Great Ormond Street take a neutral stance on CBD — neither recommending nor discouraging it — but urge parents to be open with clinicians and to use only verified products.
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Take the free health quiz →How to use CBD oil for children
There are no official paediatric dosage guidelines for CBD. Doctors generally recommend a “start low, go slow” approach — beginning with the smallest possible amount and increasing gradually if needed under medical supervision.
Common formats used in paediatric research:
- CBD oil mixed into food or drink — easy to measure, masks the taste
- CBD gummies — child-friendly format, but watch portion size carefully
Always stay well within the adult FSA guidance of 70 mg/day unless directed by a doctor. Supervise dosage closely and track effects carefully.
Frequently asked questions
Can you legally give CBD oil to a child in the UK?
There is no law explicitly prohibiting parents from giving CBD to children, but minors cannot purchase CBD themselves. Always consult a medical professional first.
Is CBD safe for children?
Generally well-tolerated in studies, but long-term paediatric safety data is limited. Only use organic, independently lab-tested products with confirmed 0% THC, and only with GP or specialist oversight.
Can CBD treat epilepsy in children?
Only prescribed Epidiolex is approved for certain severe childhood epilepsies. OTC CBD supplements are not medicines and should not replace prescribed treatments. Always involve your child’s neurologist.
Can CBD interact with children’s medications?
Yes. CBD inhibits CYP450 liver enzymes that metabolise many medications — particularly relevant for anticonvulsants. Always inform your child’s doctor before starting CBD.
Can CBD help children with autism?
Small studies suggest CBD-rich extracts may improve sleep and calmness in some children with ASD. Research is preliminary — always seek medical supervision before trying CBD for a child with autism.
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Take the free health quiz →Final thoughts on CBD for children
CBD for children is an area of growing clinical interest — particularly for epilepsy and autism — but safety, quality and medical oversight are non-negotiable. It is not a cure, not a replacement for prescribed medication, and not something to try without involving your child’s clinical team. If you do explore CBD for a child, use only organic, independently tested products with confirmed 0% THC, start at the lowest possible dose, and monitor carefully.
