Digestive — how we score

The Digestive category is how NordicScan's method flags ingredients associated with digestive effects — dominated by the food (ingestion) context. It is one of the nine evidence categories behind a product's concern score. This page explains what the category looks at, the sources behind it, and what the score does and does not claim.

A flag in this category means an ingredient our method associates with digestive effects is present — for your research. It is not a safety verdict, not a prediction of how your digestion will respond, and not medical advice.

What this category looks at

• Food (ingestion). This is where the category does most of its work: fermentable carbohydrates (FODMAPs), sugar alcohols such as sorbitol and mannitol, certain emulsifiers and additives, and high‑fructose loads — ingredients research associates with bloating, laxation, or gut‑sensitivity effects in some people.
• Cosmetic. For most cosmetic products this category resolves to not applicable by exposure, with the route reason recorded — a topical product isn't ingested. The exception is lip and oral‑contact products, where a digestive route genuinely exists.

Positive signals — prebiotic fibres and other credibly soothing ingredients — are surfaced here too, gated by the dose/form plausibility rule described in Nutrition & positives.

The evidence and sources we weight

Following the source hierarchy, the digestive category weights regulator assessments of additives and sweeteners (for example EFSA and FDA opinions on polyols and emulsifiers) and the peer‑reviewed gastroenterology and dietetics literature, including the low‑FODMAP evidence base. Each ingredient‑level flag cites the specific source behind it.

The words we use

Every statement is matched to its evidence tier:

• A research association is a correlation — "associated with digestive discomfort in sensitive individuals", named as an association.
• A genuine dose‑response effect (for example the laxation threshold of a sugar alcohol) is a dose / duration signal — "may result in a laxative effect at [dose]", with the amount stated in the same sentence. A plain correlation is never relabelled as dose‑response.
• A labelling requirement is an authority / regulatory signal — for example, EU food‑information rules flag products high in added polyols by requiring the on‑label statement "excessive consumption may produce a laxative effect", attributed to the rule.

What the score does — and does not — claim

• It does flag ingredients associated with digestive effects, so you can weigh them against your own tolerance.
• It does not assess a digestive condition, predict your individual response, or claim a product will trigger or settle any symptom.
• Individual tolerance varies widely; a flag is context for your research, not a verdict.

Related method pages

• How we score — the full method
• Allergens & sensitivities · Neurological & behavioural · Metabolic · Endocrine‑active · Carcinogenicity signals · Cardiovascular · Skin (dermal) · Nutrition & positives

Disclaimer

Nordic Scan provides ingredient information and a concern score under our published method, for general consumer research. It is not medical advice and not a medical device, and does not diagnose, treat, cure, or prevent any disease, or determine the safety of any product. Decide for yourself.

NordicScan is operated by The Fred Group, Inc. (d/b/a NordicScan). See how we score for the full method.