Greek Yogurt vs Regular Yogurt: Sugar Content Compared

Greek yogurt contains significantly less sugar than regular yogurt—typically about half as much—because the straining process removes much of the whey (and the lactose sugar it contains).

Sugar content at a glance

Key points:

• Plain Greek yogurt usually has 4–6 g sugar per 170 g serving, versus 7–12 g in plain regular yogurt.

• Per 100 g, plain Greek yogurt averages around 3.6 g sugar, while regular yogurt is closer to 7–8 g.nutriscan

• The difference is mainly natural lactose, not added sugar—unless you buy flavored varieties.

• Flavored versions of both types can contain similar high sugar (15–25+ g) due to added sweeteners and fruit preparations.

Why Greek yogurt has less sugar

Greek yogurt is made by straining regular yogurt to remove whey. Whey contains:

• Water

• Some protein

• Lactose (milk sugar)

Removing whey concentrates protein and fat while reducing carbohydrates and sugar per serving.

What this means for blood sugar and diabetes

For people managing diabetes or aiming for lower glycemic impact:

• Plain Greek yogurt has a lower glycemic index (GI ~14–17) than plain regular yogurt (GI ~24–36, especially non-fat).glycemicsnap

• Higher protein and lower sugar help slow glucose absorption and improve satiety.

• Always choose plain, unsweetened versions and add your own fruit, nuts, or seeds to control sugar.

How to choose wisely

• Look for: “Plain,” “Unsweetened,” “No added sugar” on the label.

• Check the nutrition panel:

  • Total sugars ≤6–7 g per 170 g is a good target for plain Greek yogurt.

  • Added sugars should be 0 g.

• Avoid: “Fruit on the bottom,” “dessert,” or “flavored” yogurts unless you’re intentionally treating—they often have 15–25 g sugar per cup.