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ISO100 Protein Powder 100% Whey Protein Isolate
Photo: Open Food Facts contributors (CC BY-SA)

Protein powders

ISO100 Protein Powder 100% Whey Protein Isolate

21.2 oz/1.3 lb/600 g

Okay out of 100 Medium confidence
  • Not permitted in some countries
  • Dye with an EU warning label
  • Contains synthetic dyes
  • Contains non-nutritive sweeteners
  • Contains artificial flavors
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Why it scores 57

ISO100 Protein Powder 100% Whey Protein Isolate scores 57 out of 100 (Okay) under GoodSwap’s published rules. What moved the score most:

  1. Red 3: The FDA revoked its authorization for food in January 2025 under the Delaney Clause because high doses produced tumors in male rats; the FDA says there is no evidence of this effect in humans. Regulatory
  2. Red 40: In the EU and UK, foods with this color must state that it "may have an adverse effect on activity and attention in children". Regulatory
  3. Yellow 5: In the EU and UK, foods with this color must state that it "may have an adverse effect on activity and attention in children". Regulatory

Every line of the math is on The Receipt below, with its evidence tier and sources.

The Receipt

Protein Powder 100% Whey Protein Isolate

START100

Ingredients

  • Red 3
    Regulatory The FDA revoked its authorization for food in January 2025 under the Delaney Clause because high doses produced tumors in male rats; the FDA says there is no evidence of this effect in humans. [1][2][3][4]
  • Red 40
    Regulatory In the EU and UK, foods with this color must state that it "may have an adverse effect on activity and attention in children". [5][6][7][8][9][10]
  • Yellow 5
    Regulatory In the EU and UK, foods with this color must state that it "may have an adverse effect on activity and attention in children". [5][6][7][8][9][11]
  • Blue 1
    Regulatory The FDA is working with industry to remove six petroleum-based dyes from US food by the end of 2027; California bans them in school meals from December 31, 2027. [8][9]
  • Sucralose
    Strong In a 2022 randomized study, sucralose and saccharin altered the gut microbiome and impaired glucose responses in some people; a 2023 lab study raised questions about its by-product sucralose-6-acetate. [12][13][14][15][16]
  • Whey protein concentrate / isolate
    Info An ingredient typical of ultra-processed foods (NOVA group 4). [17]
  • Natural and artificial flavors
    Strong The label does not disclose which flavoring substances are used. [18][16]
  • Gum arabic (acacia)
    Info An ingredient class typical of ultra-processed foods (NOVA group 4). [17]
  • Soy lecithin
    Info An additive class typical of ultra-processed foods (NOVA group 4). [17]
  • Stevia (steviol glycosides)
    Emerging WHO (2023) recommends against using non-sugar sweeteners to control body weight (conditional recommendation); US dietary guidelines advise limiting them. [15][16]
subtotal−43.5
TOTAL 57Okay

100 − 43.5 = 56.5 → 57

GTIN 00705016354207 · 2026-08-28

score v1.3.0 · kb 2026.10.11

Medium confidence

Same product, same score. Every time.

Nutrition per 100 g

Energy367 kcal
Fat0 g
Saturated fat0 g
Trans fat0 g
Carbohydrates3.3 g
Sugars3.3 g
Added sugars0 g
Fiber0 g
Protein83.3 g
Salt0.8 g

Serving: 1 scoop (30 g)

Ingredients

High Moderate Not recognized Tap an ingredient for its evidence and rules.
Label text, as published

HYDROLYZED WHEY PROTEIN ISOLATE, WHEY PROTEIN ISOLATE, NATURAL AND ARTIFICIAL FLAVORS. LESS THAN 1% OF: EDIBLE GLITTER (GUM ARABIC, FD&C RED #3, FD&C RED #40, FD&C BLUE #1, FD&C YELLOW #5), SALT, SOY LECITHIN, SUCRALOSE, STEVIOL GLYCOSIDES (STEVIA).

Allergens and diets

Contains: Milk, Soy

  • Not vegan
  • Palm-oil-free

Always check the package: recipes change.

Healthiest protein powders in the US

More from ISO100

Sources

  1. Color Additive Petition From Center for Science in the Public Interest, et al.; Request To Revoke Color Additive Listing for Use of FD&C Red No. 3 in Food and Ingested Drugs (90 FR 4628)

    Federal Register (U.S. Food and Drug Administration) · Jan 16, 2025 · Law

    “This order is effective January 15, 2027, except for amendatory instruction 4, which is effective January 18, 2028.”

    federalregister.gov

  2. FD&C Red No. 3

    U.S. Food and Drug Administration · Jan 15, 2025 · Regulator

    “Studies in other animals or in humans did not show the same effect and there is no evidence showing FD&C Red No. 3 causes cancer in humans.”

    fda.gov

  3. Commission Regulation (EU) No 1129/2011 of 11 November 2011 amending Annex II to Regulation (EC) No 1333/2008 by establishing a Union list of food additives

    European Union (Official Journal) · Nov 11, 2011 · Law

    “E 127 Erythrosine 200 only cocktail cherries and candied cherries”

    eur-lex.europa.eu

  4. California AB 418 (2023), the California Food Safety Act (Health and Safety Code §109025)

    California Legislative Information · Oct 7, 2023 · Law

    “Commencing January 1, 2027, a person or entity shall not manufacture, sell, deliver, distribute, hold, or offer for sale, in commerce a food product for human consumption that contains any of the following substances”

    leginfo.legislature.ca.gov

  5. Regulation (EC) No 1333/2008 of 16 December 2008 on food additives

    European Union (Official Journal) · Dec 16, 2008 · Law

    “may have an adverse effect on activity and attention in children.”

    eur-lex.europa.eu

  6. Regulation (EC) No 1333/2008 (as it applies in the UK), Annex V: food colours requiring additional labelling

    legislation.gov.uk (The National Archives) · Law

    “may have an adverse effect on activity and attention in children.”

    legislation.gov.uk

  7. Food additives and hyperactive behaviour in 3-year-old and 8/9-year-old children in the community: a randomised, double-blinded, placebo-controlled trial

    The Lancet · November 2007 · Peer-reviewed

    “Artificial colours or a sodium benzoate preservative (or both) in the diet result in increased hyperactivity in 3-year-old and 8/9-year-old children in the general population.”

    doi.org

  8. Tracking Food Industry Pledges to Remove Petroleum Based Food Dyes

    U.S. Food and Drug Administration · Regulator

    “FD&C Green No. 3, FD&C Red No. 40, FD&C Yellow No. 5, FD&C Yellow No. 6, FD&C Blue No. 1, and FD&C Blue No. 2—by the end of 2027.”

    fda.gov

  9. California AB 2316 (2024), Pupil nutrition: substances: prohibition

    California Legislative Information · Sep 28, 2024 · Law

    “beginning December 31, 2027, would prohibit a school district, county superintendent of schools, or charter school”

    leginfo.legislature.ca.gov

  10. List of Select Chemicals in the Food Supply Under FDA Review

    U.S. Food and Drug Administration · Jul 29, 2026 · Regulator

    “The table below includes select food ingredients (including food and color additives), food contact substances, and contaminants under FDA review as of May 12, 2026 .”

    fda.gov

  11. 21 CFR 74.705 FD&C Yellow No. 5

    Electronic Code of Federal Regulations (eCFR), U.S. Office of the Federal Register · Dec 29, 2016 · Law

    “shall specifically declare the presence of FD&C Yellow No. 5 by listing the color additive as FD&C Yellow No. 5 among the list of ingredients.”

    ecfr.gov

  12. Personalized microbiome-driven effects of non-nutritive sweeteners on human glucose tolerance

    Cell · September 2022 · Peer-reviewed

    “As groups, each administered NNS distinctly altered stool and oral microbiome and plasma metabolome, whereas saccharin and sucralose significantly impaired glycemic responses.”

    doi.org

  13. Toxicological and pharmacokinetic properties of sucralose-6-acetate and its parent sucralose: in vitro screening assays

    Journal of Toxicology and Environmental Health, Part B · Aug 18, 2023 · Peer-reviewed

    “Sucralose-6-acetate significantly increased the expression of genes associated with inflammation, oxidative stress, and cancer”

    doi.org

  14. EFSA finds sucralose safe when used as currently authorised; cannot confirm safety of extending its use

    European Food Safety Authority · Feb 17, 2026 · Agency assessment

    “EFSA’s experts concluded that the sweetener sucralose (E 955) continues to be safe for consumers for its currently authorised uses as a food additive.”

    efsa.europa.eu

  15. WHO advises not to use non-sugar sweeteners for weight control in newly released guideline

    World Health Organization · May 15, 2023 · Agency assessment

    “The recommendation is based on the findings of a systematic review of the available evidence which suggests that use of NSS does not confer any long-term benefit in reducing body fat in adults or children.”

    who.int

  16. Dietary Guidelines for Americans, 2025–2030

    U.S. Department of Health and Human Services and U.S. Department of Agriculture · January 2026 · Regulator

    “Limit foods and beverages that include artificial flavors, petroleum-based dyes, artificial preservatives, and low-calorie non-nutritive sweeteners.”

    cdn.realfood.gov

  17. Ultra-processed foods: what they are and how to identify them

    Public Health Nutrition · April 2019 · Peer-reviewed

    doi.org

  18. 21 CFR 101.22 Foods; labeling of spices, flavorings, colorings and chemical preservatives

    Electronic Code of Federal Regulations (eCFR), U.S. Office of the Federal Register · Dec 19, 2016 · Law

    “whose significant function in food is flavoring rather than nutritional.”

    ecfr.gov

  19. Commission Regulation (EU) 2022/63 of 14 January 2022 amending Annexes II and III to Regulation (EC) No 1333/2008 as regards the food additive titanium dioxide (E 171)

    European Union (Official Journal) · Jan 14, 2022 · Law

    “titanium dioxide (E 171) can no longer be considered safe when used as a food additive.”

    eur-lex.europa.eu

  20. Revocation of Authorization for Use of Brominated Vegetable Oil in Food (89 FR 55040)

    Federal Register (U.S. Food and Drug Administration) · Jul 3, 2024 · Law

    “This action is being taken because there is no longer a reasonable certainty of no harm from the continued use of BVO in food.”

    federalregister.gov

  21. Regulation (EC) No 1223/2009 of 30 November 2009 on cosmetic products

    European Union (Official Journal) · Nov 30, 2009 · Law

    “cosmetic products shall not contain any of the following: (a) prohibited substances — prohibited substances listed in Annex II”

    eur-lex.europa.eu

  22. HHS, FDA to Phase Out Petroleum-Based Synthetic Dyes in Nation’s Food Supply (press release)

    U.S. Food and Drug Administration · Apr 22, 2025 · Regulator

    “Initiating the process to revoke authorization for two synthetic food colorings—Citrus Red No. 2 and Orange B—within the coming months.”

    fda.gov