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MILK SWAP: THE SUGAR TRUTH

INTRO — Same coffee, four milks, different sugar totals

You order the same flat white every day. Same beans, same size — but change the milk and you quietly change the sugar. Some of it's natural, some isn't, and the difference between oat, almond, soya and semi-skimmed is bigger than most people think. Let's open the fridge.

SEMI-SKIMMED — Dairy's sugar is natural — lactose, built in

Semi-skimmed milk has no added sugar, but it isn't sugar-free either. It naturally contains lactose — around 4.7 grams per 100 millilitres. In a typical flat white's worth, that's close to two teaspoons, before your coffee's even been sweetened. It's just... what milk is.

OAT MILK — Barista oat milk is often the sweetest of all

Oat milk gets its sweetness from processing — enzymes break starch down into sugars so it froths and tastes right. A typical barista oat milk runs around 6.5 grams of sugar per 100 millilitres. In your flat white, that's roughly two and a half teaspoons — usually more than the dairy it replaced.

ALMOND MILK — Almonds barely have sugar — added helps it foam

Almonds themselves are nearly sugar-free, so barista almond milk often needs a touch of added sugar just to behave like milk in a machine. A typical version sits around 2.5 grams per 100 millilitres — under one teaspoon in your cup. Often the lightest option on this list.

SOYA MILK — Soya sits quietly in the middle, sugar-wise

Barista soya milk usually contains a small amount of added sugar too, around 3 grams per 100 millilitres — just over one teaspoon in a typical flat white. Less sweet than oat, a little more than almond. And it brings more natural protein than either.

THE SWING — Same coffee, swing of nearly one and a half teaspoons

Order the identical flat white and just change the milk, and you can swing from under one teaspoon of sugar to around two and a half — without a single sachet, syrup or spoon involved. Recipes vary by brand, but the pattern holds: processing, not the plant, is often what adds the sugar.

THE SWAP — Unsweetened versions exist — just ask

Most oat, almond and soya milks also come in unsweetened barista versions, often with a fraction of the sugar and barely a difference in taste once it's in coffee. It's rarely on the board — but most places have it if you ask.

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General lifestyle education, not medical advice — personal medical decisions belong with your GP or pharmacist.