Is Yogurt Keto Friendly? Only One Kind Really Is

Yogurt is dairy, and dairy is supposed to be keto. But yogurt is also the food most likely to sneak 15 grams of sugar into a "healthy" breakfast, and the difference between the cups on the same shelf is enormous. So the honest answer to "is yogurt keto friendly?" is: one kind is, one kind sort of is, and most of them are not.

Under the Pure Keto™ Standard, plain whole-milk Greek yogurt scores Keto Friendly. It carries about 5 g of net carbs per 170 g serving alongside 9 g of fat and 15 g of protein. Regular (unstrained) whole-milk yogurt scores Low Carb, because it keeps more lactose and less fat. Nonfat, low-fat, flavored and fruit-on-the-bottom yogurts score Not Keto. The rest of this article shows you exactly where each cup lands and which brands to buy.

The Pure Keto™ score for yogurt

The score box above is for plain whole-milk Greek yogurt, the version most keto eaters should be buying. By calories it works out to roughly 50 percent fat, 37 percent protein and 12 percent net carbs. That clears the Keto Friendly bar (35 percent or more fat, 25 percent or less net carbs) comfortably, and misses Pure Keto only because the protein is high and the fat is not quite 60 percent of calories.

Yogurt has no fiber and, unless it is a "zero sugar" product, no sugar alcohols, so there is nothing to deduct under the Pure Keto Net Carb Standard. The carbs in plain yogurt are lactose, and lactose is a sugar. Straining is what changes the numbers: Greek yogurt is regular yogurt with most of the liquid whey, and most of the lactose, drained off.

Here is how the common types compare per 170 g (6 oz):

Yogurt (170 g)	Fat	Protein	Net carbs	Pure Keto zone
24-hour homemade, heavy cream base	25 g	4 g	3 g	Pure Keto
Plain whole-milk Greek (Fage 5%, Chobani Whole Milk)	9 g	15 g	5 g	Keto Friendly
Plain unsweetened coconut yogurt (Culina, Cocojune)	18 g	1 g	6 g	Keto Friendly
Plain whole-milk regular yogurt	6 g	6 g	8 g	Low Carb
Plain 2% Greek yogurt	3 g	17 g	5 g	Low Carb
Plain nonfat Greek yogurt	0 g	17 g	6 g	Low Carb
Chobani Zero Sugar (nonfat, allulose)	0 g	12 g	5 g	Low Carb
Flavored Greek yogurt (fruit on the bottom)	3 g	12 g	16 g	Not Keto
Noosa (8 oz)	12 g	11 g	34 g	Not Keto
Plain nonfat regular yogurt	0 g	9 g	12 g	Not Keto

Two things stand out. Fat is what moves yogurt up the chart, not protein. And the moment a cup is flavored, it leaves the conversation.

Why regular yogurt scores Low Carb, not Keto Friendly

Regular whole-milk yogurt has about 8 g of net carbs per 170 g, all lactose, and only about 6 g of fat. Run that through the Standard and net carbs supply roughly 30 percent of calories, over the 25 percent limit for the Keto Friendly zone. It is not a bad food. A small serving will not end ketosis. But it is not carrying enough fat to fuel ketosis either, which is exactly what the Low Carb zone means.

Greek yogurt fixes the carb side by straining. Whole-milk Greek yogurt fixes the fat side by not skimming. You need both. Nonfat Greek yogurt is the trap here: it has the same 5 to 6 g of carbs as the whole-milk version, but with the fat removed those carbs and the protein are all that is left, and the ratio lands in Low Carb. Skyr (Icelandic yogurt) behaves the same way unless you buy the whole-milk version.

Which yogurt brands are keto friendly

The rule is short: plain, whole milk, Greek. Read the ingredient list; it should be milk and live cultures, nothing else.

Keto Friendly (buy these):

• Fage Total 5% Plain. 160 calories, 9 g fat, 15 g protein, 5 g net carbs per 170 g. The benchmark.
• Chobani Plain Whole Milk Greek. About 130 calories, 7 g fat, 12 g protein, 6 g net carbs per 150 g cup. Not the fruit cups; the plain whole-milk tub.
• Siggi's Whole Milk Plain skyr. Around 6 g fat, 14 g protein, 6 g net carbs per 150 g. Thicker than Greek.
• Kirkland Signature Whole Milk Greek and other store-brand whole-milk Greek yogurts with a one-ingredient label.
• Unsweetened coconut yogurt (Culina, Cocojune, Harmless Harvest unsweetened). Mostly coconut fat, 4 to 6 g net carbs. Watch the fiber line: if a brand adds fiber, check it against the Pure Keto Fiber Registry.

Pure Keto (if you can find or make it):

• :ratio Keto Friendly Yogurt. About 15 g fat, 15 g protein and 4 g net carbs per 150 g, sweetened with sugar alcohols. One of the few retail yogurts that clears the Pure Keto ratio.
• Two Good is often listed with keto yogurts, but at 2 g fat and 3 g net carbs it scores Low Carb. Fine as a snack; not a fat source.
• Homemade 24-hour yogurt made from heavy cream or half-and-half. See below.

Not Keto (skip): any fruit-on-the-bottom or flavored cup (14 to 16 g sugar in a Chobani or Oikos flavored cup, 34 g in an 8 oz Noosa), "light" yogurts sweetened with sugar plus sucralose, drinkable yogurts, and anything labeled with honey, vanilla or granola.

How much yogurt fits on keto

• Plain whole-milk Greek, 170 g (6 oz): about 5 g net carbs. One a day fits any keto plan.
• Plain whole-milk Greek, 1 cup (245 g): about 7 g net carbs. Still fine on a 20 g day if the rest of the day is Pure Keto foods.
• Plain regular whole-milk, 170 g: about 8 g. Doable, but you are spending nearly half a strict budget on a cup of yogurt with less fat.
• Anything flavored: 12 to 20 g per cup. That is your whole day.

If yogurt is a daily habit, weigh it once so you know what 170 g looks like in your bowl. Pre-portioned single-serve tubs of whole-milk Greek make this easy.

Make it Pure Keto: how to eat yogurt on keto

Plain whole-milk Greek yogurt is Keto Friendly on its own. Adding fat pushes the bowl into the Pure Keto zone, which is how the Pure Keto Standard is meant to be used: pair a Keto Friendly food with a Pure Keto one.

• Stir in heavy cream or full-fat sour cream. Two tablespoons of heavy cream add 10 g of fat and almost no carbs, and the bowl scores Pure Keto.
• Top with nuts and seeds. Macadamias, pecans, walnuts, chia or hemp seeds. A tablespoon of peanut butter swirled in also works, at 2 to 3 g net carbs.
• Sweeten with stevia, monk fruit or erythritol, not honey. Honey adds 17 g of carbs per tablespoon and scores Not Keto.
• Add a few berries, not a handful. Five raspberries or three strawberries add about 2 g net carbs.
• Use it as sour cream. In dips, on chili or tacos, or as a marinade base for chicken, whole-milk Greek yogurt behaves like a lower-fat sour cream.

Homemade 24-hour yogurt. Culture whole milk, half-and-half or heavy cream with a yogurt starter and hold it at 100 to 110°F for 24 hours instead of the usual 6 to 8. The extra time lets the bacteria consume most of the lactose. Whole-milk versions come in around 2 to 4 g net carbs per cup and score Keto Friendly; a heavy-cream base scores Pure Keto. It is more sour than store yogurt, which is the point: the sugar has been eaten.

Yogurt varieties people ask about

• Labneh (strained yogurt cheese): about 5 g fat, 2 g protein and 1 g net carbs per 2 tablespoons. Scores Pure Keto. One of the best yogurt products for keto.
• Curd (dahi): plain whole-milk curd is unstrained regular yogurt, so it scores Low Carb at roughly 8 g net carbs per 170 g. Hung curd, which is strained, scores like Greek.
• Kefir: drinkable, about 8 to 12 g net carbs per cup depending on fermentation. Low Carb at best; 24-hour kefir does better.
• Lactose-free yogurt: the same carbs as regular yogurt. Lactose-free means the lactose has been split into glucose and galactose, not removed.
• Soy and almond yogurts: unsweetened versions are low in carbs but also low in fat and protein. Most land in Low Carb. Sweetened versions score Not Keto.
• Frozen yogurt: Not Keto, at 20 to 35 g of sugar per serving.

The bottom line

Yogurt is keto friendly if it is plain, whole-milk and Greek. That combination gives you 5 g net carbs, 9 g fat and 15 g protein per serving and scores Keto Friendly under the Pure Keto Standard. Regular yogurt scores Low Carb, nonfat Greek scores Low Carb, and every flavored cup scores Not Keto. Buy the plain whole-milk tub, add fat on top, and yogurt stays on the menu.

Sources

• U.S. Department of Agriculture, FoodData Central. Yogurt, Greek, plain, whole milk (SR Legacy 170903); Yogurt, plain, whole milk (SR Legacy 170885); Yogurt, plain, skim milk (SR Legacy 170886).
• Manufacturer nutrition panels for Fage Total 5%, Chobani Plain Whole Milk Greek, Chobani Zero Sugar, Siggi's Whole Milk, :ratio Keto, Two Good, Noosa and Culina, accessed September 2026.