Wondering whether Kirkland Signature organic Greek yogurt plain nonfat yogurt or Siggi's Vanilla Icelandic Skyr is the healthier choice? We analyzed every ingredient in both products to find out.
Both products scored 90/100 — they are equally matched.
✅ Generally Safe
✅ Generally Safe
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Get CheckIt AI Free → ★4.7 · 256+ reviewsDifferences highlighted — ingredients unique to each product or flagged for safety concerns:
| Kirkland Signature organic Greek yogurt plain nonfat yogurt | Siggi's Vanilla Icelandic Skyr |
|---|---|
| ✓ nonfat milk | — |
| ✓ active cultures (streptococcus thermophilus | — |
| ✓ lactobacillus bulgaricus | — |
| ✓ l. acidophilus | — |
| ✓ lactobacillus acidophilus | — |
| ✓ bifidus | — |
| ✓ lactobacillus casei). | — |
| — | ✓ pasteurized whole milk |
| — | ✓ pasteurized cream |
| — | ✓ cane sugar |
| — | ✓ madagascar vanilla beans |
| — | ✓ live active cultures (s. thermophilus |
| — | ✓ l. bulgaricus). |
Kirkland Signature's organic Greek yogurt is a clean choice with no added sugars or harmful additives, but be cautious if you're dairy-sensitive.
Checkit score 90/100. Clean ingredients.
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CheckIt AI. (2026). "Kirkland Signature organic Greek yogurt plain nonfat yogurt vs Siggi's Vanilla Icelandic Skyr — Which Is Healthier? | CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/vs/kirkland-signature-organic-greek-yogurt-plain-nonfat-yogurt-d34cc6--vs--siggi-s-vanilla-icelandic-skyr-5b7841"Kirkland Signature organic Greek yogurt plain nonfat yogurt vs Siggi's Vanilla Icelandic Skyr — Which Is Healthier? | CheckIt AI." CheckIt AI, Climaverse PBC, 2026-04-15. https://getcheck.it/vs/kirkland-signature-organic-greek-yogurt-plain-nonfat-yogurt-d34cc6--vs--siggi-s-vanilla-icelandic-skyr-5b7841.<a href="https://getcheck.it/vs/kirkland-signature-organic-greek-yogurt-plain-nonfat-yogurt-d34cc6--vs--siggi-s-vanilla-icelandic-skyr-5b7841">Kirkland Signature organic Greek yogurt plain nonfat yogurt vs Siggi's Vanilla Icelandic Skyr — Which Is Healthier? | CheckIt AI — CheckIt AI</a>@misc{checkit2026vskirklandsignatureorganicgreekyogurtplainnonfatyogurtd34cc6vssiggisvanillaicelandicskyr5b7841,
title = {Kirkland Signature organic Greek yogurt plain nonfat yogurt vs Siggi's Vanilla Icelandic Skyr — Which Is Healthier? | CheckIt AI},
author = {CheckIt AI},
year = {2026},
publisher = {Climaverse PBC},
url = {https://getcheck.it/vs/kirkland-signature-organic-greek-yogurt-plain-nonfat-yogurt-d34cc6--vs--siggi-s-vanilla-icelandic-skyr-5b7841},
note = {Retrieved 2026-04-15}
}