Siggi's Peach Nonfat Icelandic Skyr: 14g Protein, 8g Sugar — Labelgrade B+ (81/100)
B+ 81 / 100 — Icelandic skyr — strained 4x like Greek yogurt but technically a fresh cheese. Siggi's built its brand on 'not a lot of sugar' relative to other flavored yogurts. The peach flavor uses real peaches + a modest amount of cane sugar (5g added), staying well below the 12-15g added sugar of mainstream flavored yogurts.
🛒 Buy on Amazon →The short answer
Siggi’s Peach Nonfat Icelandic Skyr delivers 14 g of protein for 110 calories in a 5.3 oz (150 g) cup, with 8 g of sugar — of which only 5 g is added (USDA FDC 2755546). Skyr is strained about 4x, roughly 4 cups of milk per finished cup, which is what packs the protein in. It earns a B+ (81 / 100). The whole reason this product exists is the sugar line: Siggi’s built its name on “not too sweet,” and 5 g of added cane sugar is about a third of what a typical fruit-flavored yogurt carries — without reaching for stevia to get there.
Why the B+
| Dimension | Grade | Score | Why |
|---|---|---|---|
| Protein density | B- | 73 / 100 | ~9 g per 100 g — solid, but the peaches and sugar dilute it below plain skyr (~11 g/100 g) |
| Ingredient quality | B+ | 80 / 100 | Five real items: skim milk, peaches, cane sugar, fruit pectin, live cultures — no gums, no sweetener chemistry |
| Sugar load | B+ | 80 / 100 | 8 g total, only 5 g added — low for a flavored cup, but not zero |
| Sodium load | A+ | 100 / 100 | 40 mg per cup — negligible |
| Saturated fat | A+ | 100 / 100 | 0 g — nonfat |
| Fiber | F | 30 / 100 | 0 g — structural; strained dairy has none |
Two grades carry the story. The sugar B+ is the honest version of the marketing: 5 g added is genuinely low for fruit-flavored yogurt, but a “B+” rather than an “A” is the formula refusing to pretend a flavored product is sugar-free — there is still real cane sugar in the cup. The protein B- is the cost of the flavor: at ~9 g per 100 g it sits a hair under plain nonfat Greek, because every gram of peach and sugar is a gram that isn’t strained milk. Nothing here is broken; this is simply what a lower-sugar flavored skyr looks like by the numbers.
The lane it actually occupies
Flavored yogurt splits into two camps, and Siggi’s Peach sits deliberately between them. On one side are the sugary fruit cups — fruit-on-the-bottom and Yoplait-style products running 12-15 g of added sugar to taste dessert-like. On the other are the zero-sugar options that hit 0-2 g by swapping cane sugar for stevia, monk fruit, or allulose.
Siggi’s took neither exit. It uses real sugar and real peaches, then simply uses less of the sugar — 5 g added — and accepts a tarter cup as the price. That’s the entire product thesis in one number. If you find stevia’s aftertaste off-putting but think 13 g of added sugar is too much for breakfast, this is engineered for exactly that gap. If your only metric is grams of sugar, a stevia-sweetened cup will beat it; if your metric is “fewest ingredients I can’t pronounce,” Siggi’s wins that trade.
How it stacks up against plain Greek yogurt
The plain strained yogurts are the real protein benchmark, so here’s the honest comparison against the cups we’ve verified:
| Product | Protein | Added sugar | Calories | Cup | Flavored? |
|---|---|---|---|---|---|
| Siggi’s Peach (this) | 14 g | 5 g | 110 | 150 g | Yes — real peach |
| Fage Total 0% Plain | 18 g | 0 g (5 g natural) | 90 | 180 g | No |
| Chobani Plain Non-Fat | 16 g | 0 g (6 g natural) | 90 | 180 g | No |
| Two Good Vanilla | 13 g | 0 g (2 g total, stevia) | 90 | 180 g | Flavored, stevia |
Read it per cup and per 100 g, because the cups aren’t the same size. Fage and Chobani are bigger 180 g cups with more total protein and no added sugar — but they’re unflavored, so you’re adding your own fruit and sweetness (and the time to do it). Two Good is the instructive one: a flavored cup that reaches 2 g of sugar, but only by using stevia (Reb M) — it’s the stevia route Siggi’s specifically declined. So the comparison isn’t “Siggi’s loses on sugar”; it’s “Siggi’s keeps real cane sugar and real peaches and still lands at 5 g added.” For maximum protein with zero added sugar, a plain Greek cup wins. For a flavored, ready-to-eat cup made from recognizable food, Siggi’s is the pick.
Whole-food equivalent
The 14 g of protein is roughly what you’d get from 45 g of cooked chicken breast (about 1.6 oz), plus 150 mg of calcium (~15% DV), five probiotic strains, and actual peach. The appeal is the convenience of a grab-and-go cup; plain yogurt with fresh fruit you cut yourself nets a little more protein at lower sugar, but it’s not the same five-second breakfast.
Ingredients
Pasteurized skim milk, peaches, cane sugar, fruit pectin, and live active cultures (S. thermophilus, L. delbrueckii subsp. bulgaricus, Bifidobacterium, L. acidophilus, L. paracasei). Pectin is a fruit-derived gelling fiber, not a synthetic thickener — which is why this stays a five-ingredient label rather than the gum-and-sweetener lists common on flavored yogurt. (Verbatim from the USDA Branded Foods entry, FDC 2755546.)
Where to buy
Affiliate links — we may earn a commission at no extra cost to you. The Labelgrade score is independent of affiliate relationships. More.
🔬 Compare this product side-by-side with any other →
Quick Facts
Per serving · 1 cup (150 g)
See how this fits your day — protein calculator · macro calculator
Full nutrition facts
| Nutrient | Per Serving (1 cup (150 g)) |
|---|---|
| Calories | 110 |
| Protein | 14g |
| Total Fat | 0g |
| Saturated Fat | 0g |
| Trans Fat | 0g |
| Total Carbohydrates | 13g |
| Dietary Fiber | 0g |
| Total Sugars | 8g |
| Added Sugars | 5g |
| Sodium | 40mg |
| Cholesterol | 5mg |
| Calcium | 150mg |
Scope: This page applies specifically to Siggi's Peach Nonfat Icelandic Skyr (5.3 oz (150 g) cup) · UPC 00898248001114. Other sizes, flavors, or formulations may differ.
How this fits each diet
Each score is computed from the same USDA nutrition + ingredient data, against the published rules of each diet. They tell you "does this food fit this diet" — not whether the diet is right for you.
contains animal-derived ingredients
contains no listed meat or fish
no wheat, barley, rye, or malt detected in USDA ingredient list
Frequently Asked Questions
How much protein is in Siggi's Peach skyr?
14 g per 5.3 oz (150 g) cup, at 110 calories (USDA FDC 2755546). Skyr is strained roughly 4x — about 4 cups of milk per cup of finished product — which is what concentrates the protein. The flavored cups run a couple grams under plain Siggi's because the peaches and cane sugar take up mass that would otherwise be strained milk.
Why does it have 8g of sugar — isn't Siggi's supposed to be low-sugar?
It is, for a flavored yogurt. Of the 8 g total, only 5 g is added cane sugar; the other ~3 g is naturally-occurring lactose and fruit sugar from real peaches. Siggi's whole pitch is 'not too sweet,' and 5 g added is roughly a third of what a fruit-on-the-bottom cup carries (12-15 g). It is not a zero-sugar product — if you want zero, that's a different, stevia-sweetened category.
Does it use stevia or any artificial sweeteners?
No. The sweetness comes from real cane sugar and the peaches themselves — no stevia, sucralose, monk fruit, or aspartame. That's the deliberate trade-off: Siggi's accepts a tarter, less-sweet cup and a few grams of real sugar rather than reaching zero with a non-nutritive sweetener. It's why the ingredient list stays five items long.
Is skyr the same as Greek yogurt?
Close, but not identical. Both are strained to concentrate protein, so they eat similarly. Technically skyr is made with rennet plus cultures (Iceland classifies it as a fresh cheese), while Greek yogurt is purely cultured — in the US both are sold and regulated as yogurt. In practice skyr is a touch thicker, milder, and less tart than Greek. Protein density is comparable: about 9 g per 100 g here versus 9-10 g for plain nonfat Greek.
How does the protein compare to plain Greek yogurt like Fage or Chobani?
Plain wins on raw protein. Fage Total 0% has ~18 g and Chobani Plain Non-Fat ~16 g per 180 g cup, both with zero added sugar — but they're larger, unflavored cups you'd sweeten yourself. Siggi's Peach gives you 14 g in a smaller 150 g cup with the fruit already mixed in. Per 100 g the gap narrows to ~9 g (Siggi's) vs ~10 g (Fage) vs ~9 g (Chobani). You trade a little protein for a ready-to-eat flavored cup.
Is it 'high in protein' by FDA rules?
Yes. 14 g is 28% of the FDA's 50 g Daily Value, comfortably over the 20% threshold required to make a 'high in protein' claim.
What are the five live cultures, and do they matter?
S. thermophilus and L. delbrueckii subsp. bulgaricus are the two standard yogurt cultures the FDA requires for the 'yogurt' name. The other three — Bifidobacterium, L. acidophilus, and L. paracasei — are added probiotic strains aimed at digestive health. Five strains is more than the bare minimum, though probiotic survival through digestion varies by strain and isn't quantified on the label.