Biscuit

Food · Grain · Food, Typed Supps

Sweet biscuits vary by how much fat and sugar got added; savoury ones vary by fat and salt.

Stage by stage

Intake (Dry crumb, fast start): Chewing crushes a low-moisture crumb and saliva begins breaking down the refined starch.
Digestion (Starch and fat separate): Fat in the richer styles slows stomach emptying; the lean crackers have nothing to slow them.
Absorption (Glucose enters the blood): Refined starch and sugar are absorbed rapidly, with fat following behind.
Over time (Saturated fat load): Regular intake of cream fillings and compound coatings is what moves LDL cholesterol, not any single biscuit.

Time to effect

Under an hour: Blood glucose rises within roughly 30 to 60 minutes of a serving.

Allergens

Contains: Gluten. May contain: Milk. Derived from what this food is, not from a product label.

Eating patterns

Fits: Vegan, Vegetarian, Pescatarian, Halal, Kosher. Depends on the product: Low-FODMAP.

Satiety

85 on the satiety index, where white bread is 100 — low. Modelled from the Holt et al. (1995) measurements.

Environmental footprint

1.6 kg CO2e and 648 litres of freshwater per kg, matched to "Wheat & rye" in Poore & Nemecek (2018), Science 360.

Cost band

Cheap — roughly £2.5 per kg, as a band midpoint rather than a price.

Key nutrients

Added sugar
Saturated fat
Sodium (savoury styles)

Nutrition per 100g

Calories: 446
Protein: 6.4g
Carbohydrate: 69.4g
of which sugars: 24.7g
Fat: 15.8g
of which saturated: 7.6g
Fibre: 2.1g
Sodium: 289mg

Food vs. supplement

Not applicable — this is a snack aisle, not a nutrient source. The useful comparison is within the family rather than against any supplement.

Kitchen tip

For a cracker to carry cheese or dip, a plain water cracker or rye crispbread adds almost nothing but the flour. Cheese-flavoured and flaky styles bring their own fat and salt to the plate before anything is put on them.

Common myth

"Savoury crackers are the sensible option and sweet biscuits are the indulgence." In reality: Cheese-flavoured and flaky savoury crackers carry fat comparable to many sweet biscuits plus a substantial sodium load, while plain rice and water crackers are fat-free but digest to glucose very quickly. The real dividing line is rye and wholemeal crispbread on one side and everything else on the other.