I keep a row of yogurt cups in the fridge door for one reason. On the days that get away from me, a cup is 20-something grams of protein I do not have to cook, plan, or think about. I peel the lid and I am done. That is the whole pitch.
But the aisle is a trap. Half the tubs marketed as “protein” are dessert with a health font, sitting at 9g of protein and a heap of added sugar. If you train and you want to keep the strength you are building, you need the cups that actually earn the label.
So I read the backs of a lot of yogurts. Here are the ones worth buying, ranked by protein per cup, with the sugar noted honestly. Every number below is from the current label.
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How I ranked these
Two numbers matter. Protein per serving, high. Added sugar, low. I ranked by protein first, because that is the thing you are actually shopping for. On sugar, watch the right line. Plain strained yogurt shows 4 to 5g of “total sugar,” but that is natural lactose from milk, not something a factory poured in. The number to police is added sugar. All eight of these keep added sugar at or near zero.
A single cup is usually 5.3 oz. Prices swing by store and region, so treat the dollar figures as ballpark, not gospel.
Ratio Protein
25g protein · 170 cal · 3g sugar (0g added) · ~$1.50/cup. The protein king of the dairy case. Nothing else in a normal grocery store beats 25g in one small cup, and it reads more like a thick pudding than a tart Greek yogurt.
- Who it’s for: anyone who wants the single highest-protein cup on the shelf.
- Pro: 25g of protein with only 3g of sugar is a genuinely hard number to hit anywhere else.
- Con: it is sweetened with sucralose, so if you avoid artificial sweeteners, skip it.
Oikos Pro
20g protein · 140 cal · 3g sugar (0g added) · ~$1.50/cup. Oikos Pro is the everyday workhorse. Twenty grams of protein, thick texture, no added sugar, and it is stocked almost everywhere. Sweetened with stevia, not sucralose, which some people prefer.
- Who it’s for: the reliable default you can grab at any store without thinking.
- Pro: 20g protein and 0g added sugar in a texture most people actually like.
- Con: 140 calories is a touch higher than the leaner plain options.
Kirkland Signature Nonfat Greek Yogurt
18g protein · 100 cal · 3g sugar (0g added) · ~$0.60/serving. The value play. If you have a Costco membership, the big Kirkland tub is the cheapest high-protein yogurt per gram you will find, at roughly 18g of protein for about 100 calories a serving and nothing added.
- Who it’s for: the batch buyer who eats yogurt daily and wants the best price per gram.
- Pro: unbeatable cost, clean macros, and a huge tub that lasts.
- Con: it is Costco-only in bulk, and plain means you are doing the flavoring yourself.
Icelandic Provisions Plain Skyr
17g protein · 120 cal · 3g sugar (0g added) · ~$1.60/cup. Skyr is the Icelandic cousin of Greek yogurt, strained even thicker. This one is genuinely creamy for how lean it is, and the plain cup keeps sugar at 3g with nothing added.
- Who it’s for: people who want that ultra-thick, almost cheesecake texture.
- Pro: rich and creamy at only 120 calories, with real skyr culture.
- Con: slightly pricier per cup than the mainstream Greek brands.
Fage Total 0%
16g protein · 80 cal · 5g sugar (0g added) · ~$1.50/cup. The classic, and still one of the best. Fage Total 0% plain is nothing but milk and cultures. That 5g of sugar is all natural lactose, with zero added. It is the thick, tart base I build most of my own cups on with berries or a scoop of protein.
- Who it’s for: purists who want the cleanest possible ingredient list.
- Pro: two ingredients, 16g protein, and 80 calories in the single cup.
- Con: plain and tart, so you will want to add fruit or sweetness yourself.
siggi’s Plain Nonfat Skyr
16g protein · 90 cal · 4g sugar (0g added) · ~$1.60/cup. siggi’s built its whole brand on less sugar, and the plain nonfat cup delivers: 16g protein, 90 calories, 4g of natural sugar, nothing added. Thick, clean, and widely available now.
- Who it’s for: the “not too sweet” crowd who reads ingredient lists.
- Pro: more protein than sugar, simple ingredients, a lean 90 calories.
- Con: the tartness is real, and the flavored versions climb in price.
Chobani Zero Sugar
12g protein · 60 cal · 0g sugar · ~$1.50/cup. When you want flavor with literally zero sugar and the lowest calories on this list, this is the cup. Chobani Zero Sugar comes in flavors like vanilla and mixed berry at 60 calories and 0g sugar, and it is lactose-free, which matters if dairy usually bothers you.
- Who it’s for: the flavored-yogurt fan who wants zero sugar and easy digestion.
- Pro: 0g sugar, 60 calories, lactose-free, and it actually tastes like the flavor.
- Con: at 12g, the protein is lower than the leaders here.
Two Good
12g protein · 80 cal · 2g sugar (0g added) · ~$1.50/cup. Two Good uses a slow-straining process to land at just 2g of total sugar in a flavored cup, which is genuinely impressive. If you want something that tastes like a treat but does not spike the sugar line, this is your pick.
- Who it’s for: people who want a flavored, dessert-like cup with the sugar kept way down.
- Pro: only 2g sugar in a flavored yogurt, at a friendly 80 calories.
- Con: 12g protein means it is a snack, not your main protein source for the meal.
The quick comparison
| Product | Protein | Calories | Sugar | ~Price | Best for |
|---|---|---|---|---|---|
| Ratio Protein | 25g | 170 | 3g (0 added) | ~$1.50/cup | Most protein per cup |
| Oikos Pro | 20g | 140 | 3g (0 added) | ~$1.50/cup | Everyday default |
| Kirkland Nonfat Greek | 18g | 100 | 3g (0 added) | ~$0.60/serving | Best value in bulk |
| Icelandic Provisions Skyr | 17g | 120 | 3g (0 added) | ~$1.60/cup | Thickest, creamiest |
| Fage Total 0% | 16g | 80 | 5g (0 added) | ~$1.50/cup | Cleanest ingredients |
| siggi’s Nonfat Skyr | 16g | 90 | 4g (0 added) | ~$1.60/cup | Not-too-sweet purists |
| Chobani Zero Sugar | 12g | 60 | 0g | ~$1.50/cup | Zero sugar, lowest cal |
| Two Good | 12g | 80 | 2g (0 added) | ~$1.50/cup | Flavored, low sugar |
All of these are in pretty much any grocery store. The Amazon links above are handy for subscribing or buying multipacks, but you do not need them to find any of this.
How to actually hit your protein
Buying the right yogurt is the easy half. The half that decides whether it works is whether the protein actually lands on your daily total, and that comes down to logging it.
Here is the friction most people never say out loud. You eat the cup standing at the counter, you tell yourself you will log it later, and later never comes. Do that four days a week and your protein target is fiction, no matter how good the yogurt is. The problem was never the food. It was the taps and the search bar between you and a recorded number.
That is the whole reason TrakMac exists. You say “a cup of Oikos Pro” out loud and the macros are logged in about 8 seconds. No scrolling a database, no scanning a barcode. Just say it and move on with your morning. When logging is that fast, you actually do it, and the protein you bought is the protein you count. You can see how the estimates work if you want the details.
The bottom line
If you want the most protein, buy Ratio or Oikos Pro. If you want the cleanest cup, Fage 0% or siggi’s. If you want a flavored treat with almost no sugar, Two Good or Chobani Zero Sugar. On value, nothing beats the Kirkland tub.
Then log it the second you eat it, before “later” eats your target. That is the long game, and it is how you keep what you are building. Download TrakMac free and log your first cup by voice today.