How much sugar is in cottage cheese?

Plain cottage cheese is a low-sugar food, and the sugar it does have isn’t the kind people worry about. A 1/2-cup serving (113 g) carries only about 3.1 g of sugar, which is 2.7 g per 100 g — and every gram of it is lactose, the natural sugar in milk. There’s nothing added in a plain tub: the “added sugar” line reads zero. For a food that delivers roughly 14 g of protein in that same half cup, 3.1 g of naturally occurring milk sugar is a non-issue, and understanding why it’s there makes the label easy to read.

It’s lactose — and it’s basically all the carbohydrate there is

Here’s a detail the numbers make clear: in plain cottage cheese, the sugar and the total carbohydrate are the same number. The USDA entry lists 2.7 g of total carbs and 2.7 g of sugar per 100 g, with no starch and no fiber. That’s because the only carbohydrate in cottage cheese is the lactose carried over from milk — the curdling and draining that build its protein don’t add any starch or sweetener. So when the label shows a few grams of sugar, that is the carb count, and it’s milk sugar, full stop. The one practical implication is for people who are lactose-sensitive: that small sugar figure is the lactose, so it matters to them even though it’s modest. For everyone else, it’s simply the natural cost of a dairy food, and a low one.

The catch: flavored and fruit tubs are a different food

The honest framing on cottage cheese sugar is compare, don’t fear — and check which tub you grabbed. Everything above is the plain version, and plain is where the ~3.1 g per half cup holds. Where the number jumps is in the sweetened and fruit-on-the-bottom styles: pineapple cottage cheese, “dessert” cups, and honey or vanilla blends add cane sugar or syrup on top of the lactose, and those can carry several times the sugar of plain. That added sugar shows up on its own label line, which is exactly where to look. Plain cottage cheese is one of the better high-protein, low-sugar foods you can buy — the trap isn’t the cottage cheese, it’s the flavoring. Stir in fresh fruit yourself and you keep the protein, control the sweetness, and skip the syrup entirely. (This is general guidance, not medical advice — but on plain cottage cheese, the sugar question barely registers.)

For another low-sugar, high-protein dairy, see protein in Greek yogurt.