Snack bars as a secret weapon against hunger?

NCT ID NCT07782593

Knowledge-focused Sponsor: Zoe Global Limited Source: ClinicalTrials.gov ↗

First seen Aug 24, 2026 · Last updated Aug 27, 2026 · Updated 3 times

Summary

This trial tests whether eating high-fibre plant-based snack bars every day for four weeks can reduce how hungry healthy adults feel throughout the day, compared with regular snack bars. It also looks at effects on the gut microbiome, digestive symptoms, and other health measures. Around 100 healthy UK adults who typically snack at least twice daily and eat less than 20 grams of fibre per day will take part remotely over seven weeks.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance: High-fibre plant-based snack bar
What this could lead to: If effective, these snack bars could offer a simple dietary swap to help manage hunger and support gut health in everyday life.
What could go wrong: This is a small, exploratory study in healthy adults, so results may not apply broadly. Digestive discomfort from high fibre is possible.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 100 people

The number the study aims to enrol. It can still change while the study runs.

Started

Aug 2026

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

35 to 65 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Willing and able to follow the study protocol * Willing and able to provide informed consent * Regular consumption of snacks (≥2 per day) * Fibre intake \<20 g/d * Living in the UK Exclusion Criteria: * Have BMI of less than 18.5 kg/m² or more than 40 kg/m² * Have an allergy or intolerance to ingredients in the intervention or control snack bars (including inulin) or cannot eat the food products safely and comfortably for any reason * Have a personal medical history of inflammatory bowel disease, coeliac disease, Crohn's disease, irritable bowel syndrome, chronic constipation, or chronic diarrhoea * Have started a new supplement in the past month, or are unwilling to maintain current supplement use throughout the study * Previously purchased any ZOE products (including Daily30, ZOE gut health bar or ZOE app membership). * Have taken any medication or product that may modify the measured study outcomes, in the past 3 months (including but not limited to: fibre supplements, antibiotics, non-topical steroids or other immunosuppressive medicines, probiotics or prebiotics, metformin, GLP-1 receptor agonists, lipid-lowering medications such as fibrates, statins, PCSK9 inhibitors, non-steroidal anti-inflammatory drugs) * Have used opiate pain medication or a proton pump inhibitor for 8 or more consecutive days during the past 3 months * Have experienced a heart attack, stroke or major surgery in the last 2 months * Have received treatment for cancer in the last 3 months * Are currently pregnant, breastfeeding or planning a pregnancy * Are diagnosed with an eating disorder, type 1 diabetes mellitus or type 2 diabetes mellitus

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthy adult participants Healthy adult subject Healthy adult volunteer Healthy participants Healthy subjects

How to take part

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The places running it

1 site. The list below names each one and where it is.
The official record

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Snack bars as a secret weapon against hunger?

What the study statuses mean