Costco Companies Inc. Ingredients Exposed

We analyzed 17 products from Costco Companies Inc. and found an average safety score of 56/100 (Grade: C). 29% of products contain seed oils, 0% have artificial colors, and 0% contain preservatives.

C
Brand Grade
56/100
Avg Score
17
Products Analyzed
29%
Contain Seed Oils
0%
Artificial Colors
0%
Preservatives

📊 vs Industry Average

Costco Companies Inc.'s average score of 56/100 is 5 points below the industry average of 61/100 (C).

Costco Companies Inc.'s Worst Products

These are the lowest-scoring products from Costco Companies Inc. — the ones with the most concerning ingredients.

#ProductScoreFlagged Ingredients
1VALENCIA PEANUT BUTTER FILLED PRETZEL NUGGETS PRETZELS, PEANUT BUTTER10/100e471, e500, e500ii, e503, e503ii
2SPARKLING WATER24/100e129, e212, e296, e421, e955
3KIRKLAND SIGNATURE, FLAVORED CASHEWS, DARK CHOCOLATE TOASTED COCONUT30/100e322, e322i
4HEART HEALTHY MIXED NUTS30/100None flagged
5SEMI-SWEET CHOCOLATE CHIPS, SEMI-SWEET CHOCOLATE30/100e322, e322i
6MIXED NUTS35/100None flagged
7ORGANIC CREAMY PEANUT BUTTER40/100None flagged
8PEANUT BUTTER & SEMISWEET CHOCOLATE CHIP CHEWY PROTEIN BARS, PEANUT BUTTER & SEMISWEET CHOCOLATE CHIP49/100e322, e322i, e414, e422
9HIMALAYAN SALT KRINKLE CUT POTATO CHIPS, HIMALAYAN SAIT51/100None flagged
10KIRKLAND SIGNATURE, SAHALE SNACKS, CASHEW-PISTACHIO NUT CRISP WITH LEMON APPLES, CRANBERRIES & BLUEBERRIES68/100None flagged

Costco Companies Inc.'s Best Products

Not everything from Costco Companies Inc. is bad. These are their cleanest options.

#ProductScoreFlagged Ingredients
1APPLE MANGO YELLOW CARROT PEACH FRUIT & VEGETABLE POUCHES, APPLE MANGO YELLOW CARROT PEACH100/100Clean label ✓
2SOLID WHITE ALBACORE TUNA IN WATER, SOLID WHITE ALBACORE90/100e450, e450iii
3CHICKEN ORGANIC SIPPING BONE BROTH, CHICKEN88/100e100, e392
4LACTOSE FREE 2% REDUCED FAT MILK85/100Clean label ✓
5ITALIAN SPARKLING MINERAL WATER78/100e290
6100% COLOMBIAN COLD BREW COFFEE, 100% COLOMBIAN78/100Clean label ✓
7CHOCOLATE PEANUT BUTTER CHUNK PROTEIN BAR, CHOCOLATE PEANUT BUTTER CHUNK74/100Clean label ✓
8KIRKLAND SIGNATURE, SAHALE SNACKS, CASHEW-PISTACHIO NUT CRISP WITH LEMON APPLES, CRANBERRIES & BLUEBERRIES68/100Clean label ✓
9HIMALAYAN SALT KRINKLE CUT POTATO CHIPS, HIMALAYAN SAIT51/100Clean label ✓
10PEANUT BUTTER & SEMISWEET CHOCOLATE CHIP CHEWY PROTEIN BARS, PEANUT BUTTER & SEMISWEET CHOCOLATE CHIP49/100e322, e322i, e414, e422

Most Common Flagged Ingredients

These are the ingredients that appear most frequently across Costco Companies Inc. products and have been flagged by our analysis.

e322 (3)e322i (3)e500 (1)e955 (1)e503 (1)e471 (1)e422 (1)e421 (1)e450iii (1)e414 (1)e296 (1)e503ii (1)e500ii (1)e129 (1)e212 (1)

Ingredient Frequency Analysis

How often concerning ingredients show up across all Costco Companies Inc. products we tested.

e3223 products (18%)
e322i3 products (18%)
e5001 products (6%)
e9551 products (6%)
e5031 products (6%)
e4711 products (6%)
e4221 products (6%)
e4211 products (6%)
e450iii1 products (6%)
e4141 products (6%)
e2961 products (6%)
e503ii1 products (6%)
e500ii1 products (6%)
e1291 products (6%)
e2121 products (6%)
e2901 products (6%)
e1001 products (6%)
e3921 products (6%)
e4501 products (6%)

How to Shop Costco Companies Inc. Safely

  1. Download CheckIt AI — scan any Costco Companies Inc. product with your phone camera, no barcode needed.
  2. Check the score — products scoring 70+ are considered clean. Below 40 means avoid.
  3. Stick to the best list — products like APPLE MANGO YELLOW CARROT PEACH FRUIT & VEGETABLE POUCHES, APPLE MANGO YELLOW CARROT PEACH score much higher than the brand average.
  4. Compare alternatives — use the app to find cleaner swaps from other brands.
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Frequently Asked Questions

Is Costco Companies Inc. healthy?
Costco Companies Inc. products have an average safety score of 56/100, earning a grade of C. This is 5 points below the industry average of 61/100. 29% of their products contain seed oils and 0% contain artificial colors.
What are Costco Companies Inc.'s worst products?
The lowest-scoring Costco Companies Inc. products include VALENCIA PEANUT BUTTER FILLED PRETZEL NUGGETS PRETZELS, PEANUT BUTTER (10/100), SPARKLING WATER (24/100), KIRKLAND SIGNATURE, FLAVORED CASHEWS, DARK CHOCOLATE TOASTED COCONUT (30/100).
What are Costco Companies Inc.'s best products?
The highest-scoring Costco Companies Inc. products include APPLE MANGO YELLOW CARROT PEACH FRUIT & VEGETABLE POUCHES, APPLE MANGO YELLOW CARROT PEACH (100/100), SOLID WHITE ALBACORE TUNA IN WATER, SOLID WHITE ALBACORE (90/100), CHICKEN ORGANIC SIPPING BONE BROTH, CHICKEN (88/100).
Does Costco Companies Inc. use seed oils?
29% of Costco Companies Inc. products in our database contain seed oils like soybean oil, canola oil, or sunflower oil.
Does Costco Companies Inc. use artificial colors?
0% of Costco Companies Inc. products contain artificial colors such as Red 40, Yellow 5, Yellow 6, Blue 1, or Red 3.
Does Costco Companies Inc. use preservatives?
0% of Costco Companies Inc. products contain preservatives like BHA, BHT, TBHQ, or sodium benzoate.

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📋 Cite This Data
APACheckIt AI. (2026). "Is Costco Companies Inc. Healthy? 56/100 Score — 17 Products Exposed | CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/brand-exposed/costco-companies-inc
MLA"Is Costco Companies Inc. Healthy? 56/100 Score — 17 Products Exposed | CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/brand-exposed/costco-companies-inc.
HTML Embed<a href="https://getcheck.it/brand-exposed/costco-companies-inc">Is Costco Companies Inc. Healthy? 56/100 Score — 17 Products Exposed | CheckIt AI — CheckIt AI</a>
BibTeX@misc{checkit2026brandexposedcostcocompaniesinc, title = {Is Costco Companies Inc. Healthy? 56/100 Score — 17 Products Exposed | CheckIt AI}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/brand-exposed/costco-companies-inc}, note = {Retrieved 2026-03-05} }