What Does “High Fibre” Actually Mean?
Rye Bread has 5.8g of fibre per 100g. Chickpeas (cooked) has exactly 6g. That 0.2g gap is also the exact line UK law draws for whether a food can legally be called “high fibre.” Chickpeas clear it, right on the line. Rye Bread, at 5.8g, misses by a fraction of a gram.
The real number: 6g per 100g, or 3g per 100kcal
Under the same Regulation (EC) No 1924/2006 already covered in our other articles, the exact wording gives two real routes to the same claim: “A claim that a food is high in fibre… may only be made where the product contains at least 6 g of fibre per 100 g or at least 3 g of fibre per 100 kcal.” Most foods are judged on the straightforward per-100g figure, but the per-100kcal route exists specifically so a genuinely fibre-rich but calorie-dense food isn’t unfairly ruled out just for being energy-dense.
Still UK law after Brexit, with one real regional difference
This regulation didn’t disappear when the UK left the EU. In Great Britain it’s now retained EU law, carried over by the Nutrition (Amendment etc.) (EU Exit) Regulations 2019 and 2020, and enforced through the UK’s own system rather than an EU one. In Northern Ireland it still applies directly as EU law, under the terms of the Windsor Framework. Same rule, same numbers, two different legal routes to the same answer.
It governs labelling, not a verdict on a food
Same caveat as our other articles in this series: this is a rule about what can be printed on packaging or in marketing, a specific legal test for a specific claim. Rye Bread, at 5.8g, isn’t suddenly a poor source of fibre, it genuinely just can’t carry the words “high fibre” under this specific rule, by a margin as small as 0.2g.
Where you will see it used on this site
Our own High Fibre badge, and every High Fibre hub and category page, apply both real routes, the flat 6g per 100g figure or the 3g per 100kcal alternative, whichever a food’s own real fibre and energy figures clear first. Chickpeas (cooked), at exactly 6g, genuinely qualifies via the flat route and appears on our Legumes & Pulses High Fibre page. Check it for yourself. This 6g-per-100g rule is a labelling test, a different question from how much fibre you actually need in a day, the NHS puts that at 30g, covered with a real worked example in 5 Everyday Meals That Add Up to 30g of Fibre a Day.
*This article is general information, not legal advice. Food labelling law changes and gets re-interpreted over time, so check an official source directly if you need this for your own business’s compliance.