Jelly

Food · Other · Food, Typed Supps

Every calorie in a bowl of jelly is sugar, and there is nothing else in it.

Stage by stage

Intake (Melts without chewing): Gelatin gels melt just below body temperature, so no mechanical breakdown is needed.
Stomach (Empties like a drink): With no fat, fibre or meaningful protein, gastric emptying is close to that of a sweetened beverage.
Absorption (Sucrose absorbed fast): Sucrose is split at the brush border and absorbed rapidly, giving a quick glucose rise from a small load.
Storage (Used or stored): Glucose not immediately used is stored; no vitamins or minerals arrive alongside it.

Time to effect

Under an hour: Blood glucose rises within roughly 20 to 30 minutes, with nothing present to buffer the peak.

Allergens

None of the fourteen major allergens. Derived from what this food is, not from a product label.

Eating patterns

Fits: Pescatarian, Halal, Kosher, Gluten-free. Depends on the product: Low-FODMAP.

Satiety

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

Cost band

Mid — roughly £4 per kg, as a band midpoint rather than a price.

Key nutrients

Added sugars
Gelatin protein

Nutrition per 100g

Calories: 55
Protein: 1g
Carbohydrate: 13.2g
of which sugars: 13.2g
Fat: 0g
of which saturated: 0g
Fibre: 0g
Sodium: 78mg

Food vs. supplement

Collagen supplements deliver standardised peptides at several times the gelatin in a bowl of jelly, and even those show modest, contested effects. Jelly is a dessert, and its honest merit is being a low-energy one.

Kitchen tip

Fresh pineapple, kiwifruit, papaya, figs and ginger contain proteases that stop jelly setting; use the canned versions, where the canning heat has already denatured the enzymes.

Common myth

"Jelly is a good source of collagen for skin, joints and nails." In reality: A 100g serve contains about 1g of gelatin, against the 2.5 to 10g per day of standardised peptides used in supplement trials that themselves show only modest effects. Gelatin is also a poor-quality protein, lacking tryptophan entirely.