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Atkins Protein Snack Bar
Photo: Open Food Facts contributors (CC BY-SA)

Protein bars

Atkins Protein Snack Bar

Okay out of 100 Medium confidence
  • Ultra-processed
  • High in saturated fat
  • Contains non-nutritive sweeteners
  • Contains emulsifiers studied for gut effects
  • Contains palm oil
  • Seed-oil free
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Why it scores 50

Atkins Protein Snack Bar scores 50 out of 100 (Okay) under GoodSwap’s published rules. What moved the score most:

  1. Ultra-processed (NOVA 4): Classified NOVA 4: made with industrial ingredients and additives. Strong
  2. Saturated fat 13.6 g / 100 g: Very high in saturated fat. Strong
  3. Sucralose: 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. Strong

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

Better protein bars

The same kind of product, at least 10 points higher, sold in the US. Never paid placements.

The Receipt

Protein Snack Bar

START100

Ingredients

  • 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. [1][2][3][4][5]
  • Inulin (chicory root fiber)
    Info An ingredient class typical of ultra-processed foods (NOVA group 4). [6]
  • Whey protein concentrate / isolate
    Info An ingredient typical of ultra-processed foods (NOVA group 4). [6]
  • Palm oil
    Strong About half saturated fat; WHO recommends keeping saturated fat to 10% of energy or less. [7][8][9]
  • Milk protein concentrate / isolate
    Info An ingredient typical of ultra-processed foods (NOVA group 4). [6]
  • Soy lecithin
    Info An additive class typical of ultra-processed foods (NOVA group 4). [6]
  • Natural flavors
    Info "Natural flavor" is a legal category (21 CFR 101.22(a)(3)): flavor substances from spices, fruits, vegetables, meat, dairy or fermentation. [10][6]
  • Mono- and diglycerides
    Strong In the NutriNet-Santé cohort, higher intakes of mono- and diglycerides of fatty acids (E471 and E472) were associated with higher cardiovascular risk; cause and effect is not established. [11][12][6]
subtotal−18

Processing

  • Ultra-processed (NOVA 4)
    Strong Classified NOVA 4: made with industrial ingredients and additives. [6]
  • 5 kinds of ultra-processing markers
    Emerging Industrial additive classes found: bulking agent, emulsifier, flavoring, industrial protein and non-nutritive sweetener. [6]
subtotal−24

Nutrition per 100 g

  • Saturated fat 13.6 g / 100 g
    Strong Very high in saturated fat. [7]
  • Salt 0.8 g / 100 g
    Strong High in salt. [13]
  • Energy 409 kcal / 100 g
    Info Energy-dense for its weight. [5]
  • Fiber 15.9 g / 100 g
    Strong A good source of fiber. [5]
  • Protein 15.9 g / 100 g
    Info A good source of protein. [5]
subtotal−8
TOTAL 50Okay

100 − 50 = 50

Can’t score above 79. High in fat and saturated fat (above the front-of-pack "high" level). [14]

GTIN 00637480021531 · 2026-07-27

score v1.3.0 · kb 2026.10.11

Medium confidence

Same product, same score. Every time.

Nutrition per 100 g

Energy409 kcal
Fat27.3 g
Saturated fat13.6 g
Carbohydrates45.5 g
Sugars4.5 g
Added sugars0 g
Fiber15.9 g
Protein15.9 g
Salt0.8 g

Serving: 1 bar (44 g)

Ingredients

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

peanut, malitol, inulin, whey protein isolate, palm kernel and palm oil, cream, nonfat milk, less than 2%: salt, cocoa powder, milk protein isolate, peanut oil, soy lecithin, natural flavor, sucralose, mono and diglycerides, mixed tocopherols (to maintain freshness), contains peanuts, milk, soy, made in a facility that also uses wheat and tree nuts, product size is 44 grams

Allergens and diets

Contains: Milk, Peanuts, Tree nuts, Soy, Gluten

  • Not vegan
  • Not gluten-free
  • Not palm-oil-free

Always check the package: recipes change.

Healthiest protein bars in the US

More from Atkins

Sources

  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

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

    Public Health Nutrition · April 2019 · Peer-reviewed

    doi.org

  7. Saturated fatty acid and trans-fatty acid intake for adults and children: WHO guideline

    World Health Organization · Jul 17, 2023 · Agency assessment

    “WHO recommends that adults and children reduce saturated fatty acid intake to 10% of total energy intake (strong recommendation).”

    who.int

  8. Process contaminants in vegetable oils and foods

    European Food Safety Authority · May 3, 2016 · Agency assessment

    “The highest levels of GE, as well as 3-MCPD and 2-MCPD (including esters) were found in palm oils and palm fats, followed by other oils and fats.”

    efsa.europa.eu

  9. Commission Regulation (EU) 2023/915 of 25 April 2023 on maximum levels for certain contaminants in food

    European Union (Official Journal) · Apr 25, 2023 · Law

    “Glycidyl fatty acid esters, expressed as glycidol”

    eur-lex.europa.eu

  10. 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

  11. Food additive emulsifiers and risk of cardiovascular disease in the NutriNet-Santé cohort: prospective cohort study

    BMJ · Sep 6, 2023 · Peer-reviewed

    “This study found positive associations between risk of CVD and intake of five individual and two groups of food additive emulsifiers widely used in industrial foods.”

    doi.org

  12. Re-evaluation of mono- and di-glycerides of fatty acids (E 471) as food additives

    European Food Safety Authority · Nov 10, 2017 · Agency assessment

    “The available studies did not raise any concern with regard to genotoxicity.”

    doi.org

  13. Sodium reduction (fact sheet)

    World Health Organization · May 11, 2026 · Agency assessment

    “For adults, WHO recommends less than 2000 mg/day of sodium (equivalent to less than 5 g/day salt), or just under a teaspoon.”

    who.int

  14. Guide to creating a front of pack (FoP) nutrition label for pre-packed products sold through retail outlets

    Department of Health and Social Care / Food Standards Agency (GOV.UK) · Nov 8, 2016 · Regulator

    “Table 3: Criteria for drinks (per 100ml)”

    assets.publishing.service.gov.uk

  15. Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses

    BMJ · Feb 28, 2024 · Peer-reviewed

    “Greater exposure to ultra-processed food was associated with a higher risk of adverse health outcomes, especially cardiometabolic, common mental disorder, and mortality outcomes.”

    doi.org

  16. Ultra-Processed Diets Cause Excess Calorie Intake and Weight Gain: An Inpatient Randomized Controlled Trial of Ad Libitum Food Intake

    Cell Metabolism · July 2019 · Peer-reviewed

    doi.org

  17. Dietary emulsifiers impact the mouse gut microbiota promoting colitis and metabolic syndrome

    Nature · Mar 5, 2015 · Peer-reviewed

    “carboxymethylcellulose and polysorbate-80, induced low-grade inflammation and obesity/metabolic syndrome in wild-type hosts and promoted robust colitis in mice predisposed to this disorder.”

    doi.org

  18. Randomized Controlled-Feeding Study of Dietary Emulsifier Carboxymethylcellulose Reveals Detrimental Impacts on the Gut Microbiota and Metabolome

    Gastroenterology · March 2022 · Peer-reviewed

    “Relative to control subjects, CMC consumption modestly increased postprandial abdominal discomfort and perturbed gut microbiota composition in a way that reduced its diversity.”

    doi.org