Which Is Best for Blood Sugar? Greek Yogurt Vs. Cottage Cheese

When you’re watching your blood sugar, building your meals around the right foods is of the utmost importance. Many dairy foods have been shown to reduce type 2 diabetes risk, especially those that are high in protein, like Greek yogurt and cottage cheese. But if it’s Greek yogurt vs. cottage cheese for blood sugar, is one a better choice than the other?

Meet the experts: Jordan Langhough, R.D., C.P.T., a registered dietitian, certified personal trainer, and owner of Wildflower Fertility + Nutrition; Amanda Pasko, M.S., M.P.H., R.D., a nutrition expert at the wellness app BetterMe.

Here, dietitians break down the benefits of Greek yogurt and cottage cheese for blood sugar management, along with how to eat them and the possible downsides to be aware of.

“Greek yogurt is one of the best foods for blood sugar stability,” says Jordan Langhough, R.D., C.P.T., a registered dietitian, certified personal trainer, and owner of Wildflower Fertility + Nutrition. That’s because it’s high in protein—containing up to 20 grams (g) per 6-ounce serving—and low in carbohydrates. “This high protein, low carb combination is crucial for blood sugar control because protein slows down gastric emptying,” explains Amanda Pasko, M.S., M.P.H., R.D., a nutrition expert at the wellness app BetterMe. “By slowing down digestion, protein prevents the rapid absorption of glucose into your bloodstream. This results in a gentle, stable blood sugar curve rather than a sharp spike.”

These benefits of Greek yogurt for blood sugar management have been demonstrated enough times that the U.S. Food and Drug Administration (FDA) announced a qualified health claim in 2024 that consuming yogurt regularly reduces your risk of type 2 diabetes.

If you’re watching your blood sugar, Pasko says the most important thing to do when eating Greek yogurt is to choose a plain version. “I always recommend plain, 2% or full-fat Greek yogurt over non-fat versions,” she adds. “The natural dairy fat works alongside the protein to slow down your digestion even further, which prevents glucose from rushing into your bloodstream. In many instances, 2% and full-fat yogurt varieties are also less likely to have added sugar.”

From there, it’s all about adding flavor, fiber, and fat. “Fiber slows glucose absorption even further, so you get a gentler rise in blood sugar,” says Langhough. Berries, nuts, and seeds deliver fiber (along with sweetness and crunch), plus healthy omega-3 fatty acids (in the case of chia seeds, flaxseeds, walnuts, and almonds). “This combination of protein, fat, and fiber creates the ultimate blood sugar buffer, keeping your energy stable for hours,” Pasko says.

Any detrimental effects that Greek yogurt may have on your blood sugar would come from the flavored varieties. “Flavored varieties, which the majority of yogurt brands make and that even include vanilla and fruit flavors, may have anywhere from a few grams to up to 20 g of added sugars that instantly erase the metabolic benefits,” Pasko explains. To get the benefits—especially if you’re watching your blood sugar—just stick to plain.

In addition, even if you’re choosing plain Greek yogurt, Pasko cautions against overfilling your bowl. “Even plain Greek yogurt contains a natural milk sugar called lactose. While 5 to 7 g per serving is low, eating a large cereal bowl of it can easily push your carbohydrate intake to 15 or 20 g, which requires mindfulness if you are counting total carbohydrates for insulin dosing,” she says. “Although larger tubs of yogurt will have better unit prices, it is important to check the individual serving size before eating and avoid pairing significant portions of grains with Greek yogurt if blood sugar management is a major goal.”

“Cottage cheese is another outstanding option for blood sugar management and is highly comparable to Greek yogurt in its metabolic benefits,” says Pasko. That means it’s also high in protein and very low in carbohydrates. While Greek yogurt contains both casein and whey protein, Pasko and Langhough note that cottage cheese has a particularly high percentage of casein, which may be helpful if you’re watching your blood sugar. “Casein is a slow-digesting protein that forms a gel-like substance in your stomach, which significantly delays digestion and the absorption of nutrients,” Pasko explains. “This slow release means that any carbohydrates consumed alongside the cottage cheese enter your bloodstream gradually, resulting in a flat, manageable blood sugar response.”

Ultimately, it’s the high protein content of cottage cheese—12.5 g per ½-cup serving, according to the USDA—that makes it a top pick for people trying to maintain steady blood sugar levels.

As is the case with Greek yogurt, pairing cottage cheese with tasty sources of fiber and healthy fats will help create a slower, steadier blood sugar response, says Langhough. Plus, cottage cheese is frequently paired with both sweet and savory foods, so you have plenty of options. On the sweet front, Pasko suggests mixing in a handful of berries and a sprinkle of ground flaxseeds or chia seeds. “For a savory option, pairing it with non-starchy vegetables like sliced cucumbers, cherry tomatoes, or bell peppers works beautifully,” she says. “These vegetables add volume to promote fullness and prebiotic fiber with almost no carbohydrate impact. Drizzling a teaspoon of extra virgin olive oil or adding a quarter of an avocado introduces monounsaturated fats, which slow digestion down even more.”

Just as it’s smart to avoid flavored yogurt, Pasko suggests bypassing the fruit-on-the-bottom cottage cheese containers. “These convenience cups are heavily laced with added sugars and syrups that cause the exact blood sugar spikes you are trying to avoid,” she explains. Pasko adds that if you’re buying large tubs of cottage cheese, it’s also important not to scoop too much into your bowl. “Because cottage cheese is incredibly easy to eat and less filling for some than thick Greek yogurt, portion distortion is common,” she says. “Eating a large bowl instead of the standard half-cup serving can quietly double or triple your intake of natural milk sugars and saturated fats, which can impact your overall calorie balance and insulin sensitivity over time.”

Finally, both Langhough and Pasko note that cottage cheese is surprisingly high in sodium, typically containing around 350 mg per ½ cup. “This isn’t a direct blood sugar concern, but if someone is managing blood pressure and diabetes or prediabetes, they do go hand in hand,” Pasko says. What’s more, the Centers for Disease Control and Prevention (CDC) notes that diabetes increases your risk of developing cardiovascular disease, so keeping an eye on your sodium intake is smart. Pasko says that on days that you eat cottage cheese, you may want to consider cooking with little to no added salt and avoiding processed meats and ready-made meals. You can also look for low-sodium or no-salt-added varieties of cottage cheese.

Greek yogurt and cottage cheese are some of the best foods to help keep your blood sugar stable. But if you’re looking strictly at the immediate impact your snack or meal will have on your blood sugar, cottage cheese just edges out Greek yogurt. Pasko says that Greek yogurt contains marginally more natural sugar than cottage cheese. What’s more, Greek yogurt is often paired with sweet ingredients like fruit that would also increase the overall sugar content of your meal, while cottage cheese is just as frequently the base for a savory snack as a sweet one. That said, the high-protein, low-carbohydrate nature of both means that whichever one you prefer is an outstanding choice.