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CBD basics

What is CBD? A plain-English introduction

CBD is one of many compounds found in the hemp plant. Here is a factual overview of what CBD is, how UK products are regulated and how to read a label.

By AlexEvidence checked by: AlexPublished 2026-05-04Updated 2026-07-147 min read
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Key takeaways

  • CBD is one of many compounds found in the hemp plant.
  • UK CBD products are regulated as novel foods by the FSA.
  • Product labels list total CBD and concentration.
  • thCBDx does not make medical claims about CBD.

What is CBD?

CBD (cannabidiol) is one of over a hundred naturally-occurring compounds found in the hemp plant. In the UK it is sold as a food supplement in a range of formats including oils, gummies, capsules and topical products.

Because CBD is regulated as a novel food, products sold in the UK go through a formal authorisation process. The Food Standards Agency (FSA) maintains a public list of products progressing through that process.

How to read a CBD label

Most CBD labels display two important numbers:

  • Total CBD content — the total milligrams in the container.
  • Concentration — the CBD per millilitre (oils) or per piece (gummies, capsules).
FormatTypical serving info
Oilmg per drop or per ml
Gummiesmg per gummy
Capsulesmg per capsule

Source: Food Standards Agency, "CBD guidance for consumers", updated 2025. See references below.

UK regulation

The FSA advises that healthy adults should not consume more than 10mg of CBD per day. CBD is not recommended for children, people who are pregnant or breastfeeding, people trying to conceive, or people taking medication, unless directed by a medical professional.

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References

  1. Food Standards Agency, "CBD guidance for consumers", 2025.
  2. Food Standards Agency, "Public list of CBD products", 2025.
  3. UK Home Office, "Cannabis-based products for medicinal use", 2024.

Author

Alex

Publisher and editor of thCBDx, managing product comparisons and evidence checks.

Evidence checked by

Alex

Evidence checked against the named sources and current FSA guidance.

Correction / update note: Updated on 2026-07-14 to reflect current FSA guidance.

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