Rice Beverage

Food · Drink · Food, Typed Supps

Closer to thin rice water than to milk — there is almost no protein in it.

Stage by stage

Intake (Mouth): Drunk or poured like milk; there is nothing to chew.
Stomach (Stomach): A thin liquid with no fat or protein to slow it, so it empties from the stomach fast.
Small intestine (Small intestine): Enzyme-liberated rice sugars are absorbed quickly, giving a faster glucose rise than dairy or soy milk.
Skeleton (Bone): Calcium reaches bone only from the fortified version, and only if the carton has been shaken before pouring.

Time to effect

Under an hour: Blood glucose rises within roughly 30 minutes, faster than after dairy or soy milk of the same volume.

Allergens

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

Eating patterns

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

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

1.2 kg CO2e and 270 litres of freshwater per kg, matched to "Rice milk" 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
Added calcium (fortified versions)

Nutrition per 100g

Calories: 47
Protein: 0.6g
Carbohydrate: 9g
of which sugars: 3.1g
Fat: 1g
of which saturated: 0.2g
Fibre: 0g
Sodium: 65mg

Food vs. supplement

A fortified rice beverage is functionally a calcium supplement dissolved in a rice drink, and it works about as well as one — but it does not carry the protein, iodine or B12 that make dairy useful, so it substitutes for the calcium alone. If dairy is excluded, calcium from the fortified carton plus protein from elsewhere is a more honest plan than treating the drink as a like-for-like swap.

Kitchen tip

Shake the carton hard before every pour if it is a fortified one — the added calcium settles and the last glass otherwise carries far more than the first. It splits less readily in hot coffee than most plant milks but has no protein to build foam with, so it will not froth.

Common myth

"Plant milks are broadly interchangeable with cow's milk." In reality: Not across this category. Rice beverage supplies under a gram of protein per 100g and, unless fortified, essentially no calcium — soy is the only common plant milk whose protein approaches dairy.