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Crystal Light
Photo: Open Food Facts contributors (CC BY-SA)

Juices and nectars

Crystal Light

Poor out of 100 High confidence
  • Dye with an EU warning label
  • Contains synthetic dyes
  • Ultra-processed
  • Contains non-nutritive sweeteners
  • Contains caffeine
  • Contains artificial flavors
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Why it scores 23

Crystal Light scores 23 out of 100 (Poor) under GoodSwap’s published rules. What moved the score most:

  1. Aspartame: Labels must warn people with phenylketonuria (PKU) because aspartame contains phenylalanine (US and EU). 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. Ultra-processed (NOVA 4): Classified NOVA 4: made with industrial ingredients and additives. Strong

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

Better juices and juice drinks

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

The Receipt

Crystal Light

START100

Ingredients

  • Aspartame
    Regulatory Labels must warn people with phenylketonuria (PKU) because aspartame contains phenylalanine (US and EU). [1][2][3][4][5][6][7][8][9]
  • 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". [10][11][12][13][14][15]
  • 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". [10][11][12][13][14][16]
subtotal−50

Processing

  • Ultra-processed (NOVA 4)
    Strong Classified NOVA 4: made with industrial ingredients and additives. [17]
  • 5 kinds of ultra-processing markers
    Emerging Industrial additive classes found: color (added), emulsifier, flavoring, industrial sugar or starch hydrolysate and non-nutritive sweetener. [17]
subtotal−24

Nutrition per 100 g

  • Energy 500 kcal / 100 g
    Info Energy-dense for its weight. [9]
subtotal−3
TOTAL 23Poor

100 − 77 = 23

Can’t score above 79. Contains aspartame, an ingredient of high concern. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]

GTIN 00043000091005 · 2025-08-04

score v1.3.0 · kb 2026.10.11

High confidence

Same product, same score. Every time.

Nutrition per 100 g

Energy500 kcal
Fat0 g
Saturated fat0 g
Carbohydrates100 g
Sugars0 g
Added sugars0 g
Fiber0 g
Protein0 g
Salt0 g

Serving: 2 g

Ingredients

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

CITRIC ACID, MALTODEXTRIN, ASPARTAME, CAFFEINE, MAGNESIUM OXIDE, NATURAL AND ARTIFICIAL FLAVOR, ARTIFICIAL COLOR, RED 40, TOCOPHEROL, YELLOW 5, BLUE 1, SOY LECITHIN, CITRIC ACID, MALTODEXTRIN, ASPARTAME, CAFFEINE, MAGNESIUM OXIDE, NATURAL FLAVOR, SOY LECITHIN, ARTIFICIAL COLOR, YELLOW 5, CITRIC ACID, MALTODEXTRIN, ASPARTAME, CAFFEINE, MAGNESIUM OXIDE, ARTIFICIAL COLOR, NATURAL FLAVOR, RED 40, BLUE 1, CITRIC ACID, ASPARTAME, MALTODEXTRIN, CAFFEINE, MAGNESIUM OXIDE, NATURAL FLAVOR, SOY LECITHIN, YELLOW 5, RED 40

Allergens and diets

Contains: Soy

  • Palm-oil-free

Always check the package: recipes change.

Healthiest juices and nectars in the US

More from Crystal Light

Sources

  1. 21 CFR 172.804 Aspartame

    Electronic Code of Federal Regulations (eCFR), U.S. Office of the Federal Register · Mar 24, 2023 · Law

    “PHENYLKETONURICS: CONTAINS PHENYLALANINE”

    ecfr.gov

  2. Regulation (EU) No 1169/2011, Annex III point 2.3 (aspartame)

    European Union (Official Journal) · Oct 25, 2011 · Law

    “‘contains a source of phenylalanine’ shall appear on the label in cases where aspartame/aspartame-acesulfame salt is designated in the list of ingredients by its specific name.”

    eur-lex.europa.eu

  3. Aspartame hazard and risk assessment results released (IARC, WHO and FAO joint news release)

    World Health Organization · Jul 14, 2023 · Agency assessment

    “Citing “limited evidence” for carcinogenicity in humans, IARC classified aspartame as possibly carcinogenic to humans (IARC Group 2B) and JECFA reaffirmed the acceptable daily intake of 40 mg/kg body weight.”

    who.int

  4. Carcinogenicity of aspartame, methyleugenol, and isoeugenol (IARC Monographs Vol. 134 working group summary)

    The Lancet Oncology · August 2023 · IARC

    doi.org

  5. Aspartame and Other Sweeteners in Food

    U.S. Food and Drug Administration · Feb 27, 2025 · Regulator

    “The FDA disagrees with IARC’s conclusion that these studies support classifying aspartame as a possible carcinogen to humans.”

    fda.gov

  6. EFSA completes full risk assessment on aspartame and concludes it is safe at current levels of exposure

    European Food Safety Authority · Dec 10, 2013 · Agency assessment

    “Aspartame and its breakdown products are safe for human consumption at current levels of exposure”

    efsa.europa.eu

  7. Artificial sweeteners and cancer risk: Results from the NutriNet-Santé population-based cohort study

    PLOS Medicine · Mar 24, 2022 · Peer-reviewed

    “In this large cohort study, artificial sweeteners (especially aspartame and acesulfame-K), which are used in many food and beverage brands worldwide, were associated with increased cancer risk.”

    doi.org

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

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

    Public Health Nutrition · April 2019 · Peer-reviewed

    doi.org

  18. 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

  19. 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

  20. 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

  21. Spilling the Beans: How Much Caffeine is Too Much?

    U.S. Food and Drug Administration · Regulator

    “For most adults, the FDA has cited 400 milligrams* a day — that's about two to three 12-fluid-ounce cups of coffee — as an amount not generally associated with negative effects.”

    fda.gov

  22. Regulation (EU) No 1169/2011, Annex III point 4.1 (beverages with high caffeine content)

    European Union (Official Journal) · Oct 25, 2011 · Law

    “‘High caffeine content. Not recommended for children or pregnant or breast-feeding women’”

    eur-lex.europa.eu