Noodle

Food · Grain · Food, Typed Supps

Rice, wheat, buckwheat or egg — which one it is matters more than the shape.

Stage by stage

Intake (Chewing and cooking): Boiling gelatinises the starch; chewing and salivary amylase begin breaking it down.
Digestion (Starch to sugar): Amylase converts the gelatinised starch into maltose and glucose.
Absorption (Glucose enters the blood): Glucose is absorbed, quickly from rice noodles and more slowly from buckwheat or egg noodles.
Use (Fuel and fermentation): Glucose fuels muscle and brain; fibre and resistant starch are fermented in the colon.

Time to effect

Under an hour: Blood glucose rises within roughly 30 to 60 minutes, fastest from rice noodles and slowest from high-buckwheat soba.

Allergens

Contains: Gluten. May contain: Eggs. 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

124 on the satiety index, where white bread is 100 — moderate. 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

Carbohydrate
Plant protein
Fibre (buckwheat and wholemeal types)

Nutrition per 100g

Calories: 359
Protein: 11.9g
Carbohydrate: 71.2g
of which sugars: 0g
Fat: 1.3g
of which saturated: 0.2g
Fibre: 5.3g
Sodium: 563mg

Food vs. supplement

There is no supplement equivalent to a bowl of noodles, and nothing here needs supplementing. The useful comparison is between noodles: a high-buckwheat soba or a wholemeal wheat noodle brings fibre and minerals a rice stick noodle does not, and no fibre capsule replicates what the intact grain does inside a meal.

Kitchen tip

Cook in plenty of unsalted water and drain properly. For instant noodles, boiling and draining the noodle, then adding half the sachet to fresh water, cuts the sodium substantially without changing much else.

Common myth

"Soba is a wholegrain noodle and instant noodles are unhealthy mainly because they are fried." In reality: Soba is often sold as the wholegrain option, but most commercial soba is a blend — commonly 20 to 80 per cent buckwheat with wheat flour making up the rest, because buckwheat has no gluten and a pure buckwheat noodle is difficult to keep together. Only noodles labelled juwari (ten-tenths) are entirely buckwheat. The salt is a second surprise: dry soba is salted in the dough, which is why the figures here show substantial sodium for a plain-looking noodle, and most of that salt leaches into the cooking water.