Record the displayed warning
The Grenade OREO and selected Fulfil sources warn that excessive consumption may cause a laxative effect. Their native per-bar panels list17g and14g polyols respectively. These are selected label facts,not a threshold discovered by this site. The warning is not removed from a comparison merely because the same bar has a low sugars claim.
Do not calculate a personal allowance
There is no tool here that converts polyol grams,bodyweight or another food intake into a safe number of bars. A label warning does not supply a universal personal threshold. The site does not diagnose digestive symptoms,advise treatment or promise that an amount below a chosen number will be comfortable for everyone.
Keep carbohydrate and sugars separate
The selected Grenade panel lists20g carbohydrate,1.0g sugars and17g polyols per bar. Fulfil lists17g carbohydrate,1.5g sugars and14g polyols. These rows have different meanings and should not be added as though each were an independent extra portion of the bar. Use the panel’s own structure rather than an invented net-carbohydrate formula.
A practical purchase decision
If a buyer wants to avoid a particular sweetener listed on the current label,that requirement can guide the shortlist without needing a dose calculator. Verify the exact ingredient and selected version first. Do not infer that a different flapjack has no relevant warning or ingredient merely because one field is absent from a copied comparison table.
Ask the right source question
Where a warning or ingredient is unclear,ask the maker about the exact current flavour,size and batch label. Keep the reply with the order record. The source finder shows the recorded warning and unresolved scope;it does not return a safe-for-you approval. No digestive tolerance or consumption experiment is claimed,and the comparison remains within buying-reference scope.
Sources & scope
Checked November 5, 2026. Manufacturer and retailer references support the specific statements. Dated displayed prices are not final checkout quotes, performance rankings or performance testing. This shopping reference does not replace the exact product label or retailer instructions. Current received labels and independent food/nutrition/content/commerce review remain pending.
Tesco UK Grenade OREO60g313750416 ↗
Tesco UK Fulfil Chocolate Salted Caramel55g330762768 ↗
Keep reading
Does low sugar mean a bar is sugar-free? ↗
How do I read ingredients and may-contain statements together? ↗