Why Brits Are Missing Their Daily Fiber Goals—and How to Fix It

Many Brits are falling short of their daily fiber targets, with most consuming far less than the recommended 30 grams. The rise of ultra-processed foods (UPFs) has played a key role in this decline. While boosting fiber intake can bring real health benefits, experts warn against extreme approaches like 'fiber-maxing'.

UK health guidelines advise adults to eat at least 30 grams of fiber each day. A gradual increase through a balanced diet can improve digestive health, stabilise blood sugar, and reduce harmful LDL cholesterol. Simple changes—like adding whole grains, fruits, and vegetables to meals—can help reach this goal.

Yet, many struggle to hit the target due to the growing popularity of UPFs. These products often contain little fiber but are packed with sugar, salt, and unhealthy fats. As UPF consumption rises, fiber-rich whole foods are being pushed out of diets. Some have turned to 'fiber-maxing', a trend that prioritises fiber above all else. However, this approach risks cutting out essential nutrients from other food groups. Rapidly increasing fiber intake can also cause bloating, cramps, and even constipation. Meanwhile, consuming over 40 grams daily remains understudied, with limited long-term research on its effects.

A steady, balanced increase in fiber offers clear health perks without the risks of extreme methods. Replacing UPFs with whole, fiber-rich foods remains the safest way to meet daily targets. For most people, 30 grams a day is both achievable and beneficial when done gradually.