Treacle or Molasses

Food · Pantry & Condiment · Food, Typed Supps

What is left over when sugar is refined out of cane, minerals included.

Stage by stage

Intake (Sweet and bitter together): Bitterness comes from the acids, phenolics and mineral salts left behind when sucrose crystallised out.
Digestion (Sucrose split at the brush border): Sucrase splits sucrose to glucose and fructose; there is almost no fibre or protein to slow it.
Absorption (Fast glycaemic rise): The blood-glucose response is close to that of table sugar.
Minerals (Concentrated but modestly absorbed): Potassium, magnesium, calcium and non-heme iron are genuinely concentrated by refining, and absorbed at a few per cent.

Time to effect

Under an hour: Blood glucose rises within roughly 30 minutes, much as with table sugar.

Allergens

Contains: Sulphites. Derived from what this food is, not from a product label.

Eating patterns

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

Satiety

Not scored: the satiety index is measured on 240 kcal servings, and nobody eats a 240 kcal serving of this. The question does not apply rather than the answer being unknown.

Environmental footprint

3.2 kg CO2e and 202 litres of freshwater per kg, matched to "Cane sugar" in Poore & Nemecek (2018), Science 360.

Cost band

Mid — roughly £9 per kg, as a band midpoint rather than a price.

Key nutrients

Sugars
Potassium
Non-heme iron

Nutrition per 100g

Calories: 268
Protein: 0.6g
Carbohydrate: 69.2g
of which sugars: 69.2g
Fat: 0g
of which saturated: 0g
Fibre: 0.4g
Sodium: 66mg

Food vs. supplement

As a swap for refined sugar it brings genuine potassium and magnesium along. As an iron supplement it fails on arithmetic: the sugar dose required to reach a therapeutic iron dose is far beyond any sensible intake.

Kitchen tip

Blackstrap is dark, bitter and mineral-dense; light treacle and golden syrup are mild and carry almost no minerals. Swapping them changes flavour and mineral content together.

Common myth

“Molasses is a healthy sugar because it is full of iron.” In reality: The iron is real — about 1.4mg in a tablespoon — but so are the 14g of free sugar it arrives with. Reaching an adult woman's daily iron requirement from molasses alone would take more than 140g of sugar.