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Food

Carrageenan in Processed Foods

Food-texture additive with mixed evidence and frequent user-reported GI sensitivity concerns.[1357,1531,2651, etc.]

Superscript reference numbers link to the Sources bibliography.

Strong Evidence
Gut HealthImmune Support

Composite Rating

4.1/5

Blends evidence depth, community direction, safety friction, and completeness.

Evidence Intensity

100/100

High depth from human/RCT/meta counts

Community Direction

0

Mixed / Neutral • confidence Minimal

Safety Friction

53/100

Moderate signal from adverse/interaction markers

Data Completeness

100%

Studies 16 • mentions 0 • links 25

Not medical advice. This product is for educational and informational purposes only. It does not diagnose, treat, cure, or prevent any disease and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions regarding a medical condition.

FDA disclaimer: These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Results may vary. Not intended for use by pregnant or nursing women, individuals under 18, or those with known medical conditions without physician consultation.

If you are experiencing a medical emergency, call 911 or your local emergency number immediately.

Implementation Blueprint

Classification: case-dependent.[1066,1179,1357, etc.]

Best fit: Users noticing reproducible GI symptoms after specific products..[1066,1179,1357, etc.]

Goal alignment: Gut Health, Immune Support.[1066,1179,1357, etc.]

Classification

Case Dependent

Evidence Tier

HIGH

Best Fit

Users noticing reproducible GI symptoms after specific products.

Primary Focus

Gut Health, Immune Support

Safety and Pitfalls

  • Context and dose matter; evaluate personal tolerance before broad restriction.[1066,1179,1357, etc.]

At-A-Glance Evidence Architecture[1357,1531,2651, etc.]

Clinical Depth

Humans: 165 • RCTs: 8 • Meta: 2

Cohort / Real-World

Cohort signals: 7

Safety Markers

Adverse signals: 14 • Interactions: 0

Evidence Tracking

Freshness, trend, and study timeline for this item

Evidence Tracking

Status

New Evidence

Trend

→ Stable evidence base

Depth

165 total studies · 6 recent

Timeline

19992025

Top Signal Metrics[1357,1531,2651, etc.]

In vitro / tissue

809

Total indexed

165

Human studies

165

Safety adverse signals

14

Randomized trials

8

Cohort signals

7

Community Direction Mix[1066,1179,6078]

Weighted direction score: 0 (Mixed / Neutral)

Benefit0
Adverse0
No Effect0
Mixed0

No directional mention volume was resolved; fallback profile metadata is shown in other sections.

Evidence Quality Summary[1357,1531,2651, etc.]

High when there are >=2 human meta-analyses, or strong human trial/cohort volume with substantial human literature.

In vitro / tissue

809

Total indexed

165

Human studies

165

Safety adverse signals

14

Randomized trials

8

Cohort signals

7

Meta-analyses

2

Animal-only studies

0

Study Type Breakdown

Distribution of evidence by study design strength

Meta-AnalysesLevel 1a2
Randomized TrialsLevel 1b8
Cohort StudiesLevel 2b7
Human Studies (other)Level 3-4148
All IndexedAll levels165
100

Evidence Strength: High

Composite of study volume, RCTs, and meta-analyses

Top Human Studies[1357,1531,2651, etc.]

PMID 37836478 • 2023 Sep 28

Dietary Interventions in Ulcerative Colitis: A Systematic Review of the Evidence with Meta-Analysis.

Nutrients

Open PubMed

PMID 30736095 • 2019 Feb 8

Dietary interventions for induction and maintenance of remission in inflammatory bowel disease.

Cochrane Database Syst Rev

Open PubMed

PMID 39593091 • 2024 Nov 26

Carrageenan and insulin resistance in humans: a randomised double-blind cross-over trial.

BMC Med

Open PubMed

PMID 32377523 • 2020

Carrageenan-Free Diet Shows Improved Glucose Tolerance and Insulin Signaling in Prediabetes: A Randomized, Pilot Clinical Trial.

J Diabetes Res

Open PubMed

PMID 12810413 • 2003

Blood cholesterol and lipid-lowering effects of carrageenan on human volunteers.

Asia Pac J Clin Nutr

Open PubMed

PMID 27352777 • 2016 Sep

Acute effects of different dietary polysaccharides added in milk on food intake, postprandial appetite and glycemic responses in healthy young females.

Int J Food Sci Nutr

Open PubMed

PMID 29862484 • 2018 Oct

Children with Crohn's Disease Frequently Consume Select Food Additives.

Dig Dis Sci

Open PubMed

PMID 10719574 • 1999 Jul

Carbohydrate availability of arroz caldo with lambda-carrageenan.

Int J Food Sci Nutr

Open PubMed

PMID 38349899 • 2024 Feb

Food additive emulsifiers and cancer risk: Results from the French prospective NutriNet-Santé cohort.

PLoS Med

Open PubMed

PMID 40198579 • 2025 Apr

Food additive mixtures and type 2 diabetes incidence: Results from the NutriNet-Santé prospective cohort.

PLoS Med

Open PubMed

PMID 38244236 • 2024 Aug 1

Dietary Emulsifier Exposure in People With Inflammatory Bowel Disease Compared With Healthy Controls: Is There a Cause for Concern?

Inflamm Bowel Dis

Open PubMed

PMID 41470798 • 2025 Dec 10

Ultra-Processed Foods and Inflammatory Bowel Disease: A Narrative Review of Epidemiology, Mechanisms, and Dietary Implications.

Nutrients

Open PubMed

PMID 38160531 • 2024 Feb 5

Sulfated polysaccharides accelerate gliadin digestion and reduce its toxicity.

Biochem Biophys Res Commun

Open PubMed

PMID 34608173 • 2021 Oct 4

Exposure to food additive mixtures in 106,000 French adults from the NutriNet-Santé cohort.

Sci Rep

Open PubMed

PMID 34146449 • 2021 Jul

Food-grade carrageenans and their implications in health and disease.

Compr Rev Food Sci Food Saf

Open PubMed

PMID 35782077 • 2022

Toxicological and Teratogenic Effect of Various Food Additives: An Updated Review.

Biomed Res Int

Open PubMed

Community Report Frequency[1066,1179,6078]

Benefit reports: 0

Adverse reports: 0

No-effect reports: 0

Mixed reports: 0

Unclear reports: 0

Signal confidence: 0.00

Top Reported Effects[1066,1179,6078]

Benefits

  • Gut Health: 1
  • Immune Support: 1

Adverse

  • Context and dose matter; evaluate personal tolerance before broad restriction: 1

No Effect

  • insufficient no-effect reports captured: 0

Community confidence 0.00 with mentions: benefit 0, adverse 0, no-effect 0.

Search fetch failed: Failed to fetch after retries: https://old.reddit.com/search.json?raw_json=1&sort=relevance&t=year&limit=8&q=%22carrageenan%20in%20processed%20foods%22%20(diet%20OR%20nutrition%20OR%20meals%20OR%20side%20effects%20OR%20experience%20OR%20results)%20(subreddit%3Anutrition%20OR%20subreddit%3AScientificNutrition%20OR%20subreddit%3Aloseit%20OR%20subreddit%3AMealPrepSunday%20OR%20subreddit%3Aketo%20OR%20subreddit%3Afasting%20OR%20subreddit%3Amediterraneandiet%20OR%20subreddit%3Avegan%20OR%20subreddit%3Avegetarian%20OR%20subreddit%3Acarnivorediet%20OR%20subreddit%3Abiohackers%20OR%20subreddit%3Alongevity)

Fallback search fetch failed: Failed to fetch after retries: https://old.reddit.com/search.json?raw_json=1&sort=relevance&t=year&limit=12&q=carrageenan%20in%20processed%20foods

Community Evidence Examples[1066,1179,6078]

aggregate • unclear

No directional first-hand mentions captured in the current community corpus; source links are retained for traceability.

Open mention

Primary Source Links

Evidence Sources

  • https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&term=(%22carrageenan%22%20AND%20humans%5BMeSH%20Terms%5D)%20AND%20(diet*%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20consumption%5BTitle%2FAbstract%5D%20OR%20feeding%5BTitle%2FAbstract%5D%20OR%20nutrition%5BTitle%2FAbstract%5D)
  • https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&term=(%22carrageenan%22%20AND%20humans%5BMeSH%20Terms%5D)%20AND%20humans%5BMeSH%20Terms%5D%20AND%20(diet*%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20consumption%5BTitle%2FAbstract%5D%20OR%20feeding%5BTitle%2FAbstract%5D%20OR%20nutrition%5BTitle%2FAbstract%5D)
  • https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&term=(%22carrageenan%22%20AND%20humans%5BMeSH%20Terms%5D)%20AND%20humans%5BMeSH%20Terms%5D%20AND%20(diet*%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20consumption%5BTitle%2FAbstract%5D%20OR%20feeding%5BTitle%2FAbstract%5D%20OR%20nutrition%5BTitle%2FAbstract%5D)%20AND%20randomized%20controlled%20trial%5BPublication%20Type%5D
  • https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&term=(%22carrageenan%22%20AND%20humans%5BMeSH%20Terms%5D)%20AND%20humans%5BMeSH%20Terms%5D%20AND%20(diet*%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20consumption%5BTitle%2FAbstract%5D%20OR%20feeding%5BTitle%2FAbstract%5D%20OR%20nutrition%5BTitle%2FAbstract%5D)%20AND%20meta-analysis%5BPublication%20Type%5D
  • https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&term=(%22carrageenan%22%20AND%20humans%5BMeSH%20Terms%5D)%20AND%20humans%5BMeSH%20Terms%5D%20AND%20(diet*%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20consumption%5BTitle%2FAbstract%5D%20OR%20feeding%5BTitle%2FAbstract%5D%20OR%20nutrition%5BTitle%2FAbstract%5D)%20AND%20(cohort%5BTitle%2FAbstract%5D%20OR%20prospective%5BTitle%2FAbstract%5D%20OR%20longitudinal%5BTitle%2FAbstract%5D)
  • https://pubmed.ncbi.nlm.nih.gov/37836478/
  • https://pubmed.ncbi.nlm.nih.gov/30736095/
  • https://pubmed.ncbi.nlm.nih.gov/39593091/
  • https://pubmed.ncbi.nlm.nih.gov/32377523/
  • https://pubmed.ncbi.nlm.nih.gov/12810413/
  • https://pubmed.ncbi.nlm.nih.gov/27352777/
  • https://pubmed.ncbi.nlm.nih.gov/29862484/
  • https://pubmed.ncbi.nlm.nih.gov/10719574/
  • https://pubmed.ncbi.nlm.nih.gov/38349899/
  • https://pubmed.ncbi.nlm.nih.gov/40198579/
  • https://pubmed.ncbi.nlm.nih.gov/38244236/
  • https://pubmed.ncbi.nlm.nih.gov/41470798/
  • https://pubmed.ncbi.nlm.nih.gov/38160531/
  • https://pubmed.ncbi.nlm.nih.gov/34608173/
  • https://pubmed.ncbi.nlm.nih.gov/34146449/

Community Sources

  • https://old.reddit.com/search.json?raw_json=1&sort=relevance&t=year&limit=8&q=%22carrageenan%20in%20processed%20foods%22%20(diet%20OR%20nutrition%20OR%20meals%20OR%20side%20effects%20OR%20experience%20OR%20results)%20(subreddit%3Anutrition%20OR%20subreddit%3AScientificNutrition%20OR%20subreddit%3Aloseit%20OR%20subreddit%3AMealPrepSunday%20OR%20subreddit%3Aketo%20OR%20subreddit%3Afasting%20OR%20subreddit%3Amediterraneandiet%20OR%20subreddit%3Avegan%20OR%20subreddit%3Avegetarian%20OR%20subreddit%3Acarnivorediet%20OR%20subreddit%3Abiohackers%20OR%20subreddit%3Alongevity)
  • https://old.reddit.com/search.json?raw_json=1&sort=relevance&t=year&limit=12&q=carrageenan%20in%20processed%20foods
  • https://www.reddit.com/search/?q=Carrageenan%20in%20Processed%20Foods

Scientific Evidence Notes[1357,1531,2651, etc.]

1. PubMed triage evidence summary: Carrageenan in Processed Foods

PUBMED • Humans + preclinical triage

Counts from structured PubMed query set for diet/intake context.

Outcome: Humans 165, RCT 8, meta 2, cohort 7.[1357,1531,2651, etc.]

Open source
2. Dietary Interventions in Ulcerative Colitis: A Systematic Review of the Evidence with Meta-Analysis.

PUBMED • 2023 • Human evidence curation set

PMID 37836478 from Nutrients.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
3. Dietary interventions for induction and maintenance of remission in inflammatory bowel disease.

PUBMED • 2019 • Human evidence curation set

PMID 30736095 from Cochrane Database Syst Rev.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
4. Carrageenan and insulin resistance in humans: a randomised double-blind cross-over trial.

PUBMED • 2024 • Human evidence curation set

PMID 39593091 from BMC Med.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
5. Carrageenan-Free Diet Shows Improved Glucose Tolerance and Insulin Signaling in Prediabetes: A Randomized, Pilot Clinical Trial.

PUBMED • 2020 • Human evidence curation set

PMID 32377523 from J Diabetes Res.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
6. Blood cholesterol and lipid-lowering effects of carrageenan on human volunteers.

PUBMED • 2003 • Human evidence curation set

PMID 12810413 from Asia Pac J Clin Nutr.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
7. Acute effects of different dietary polysaccharides added in milk on food intake, postprandial appetite and glycemic responses in healthy young females.

PUBMED • 2016 • Human evidence curation set

PMID 27352777 from Int J Food Sci Nutr.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
8. Children with Crohn's Disease Frequently Consume Select Food Additives.

PUBMED • 2018 • Human evidence curation set

PMID 29862484 from Dig Dis Sci.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
9. Carbohydrate availability of arroz caldo with lambda-carrageenan.

PUBMED • 1999 • Human evidence curation set

PMID 10719574 from Int J Food Sci Nutr.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
10. Food additive emulsifiers and cancer risk: Results from the French prospective NutriNet-Santé cohort.

PUBMED • 2024 • Human evidence curation set

PMID 38349899 from PLoS Med.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
11. Food additive mixtures and type 2 diabetes incidence: Results from the NutriNet-Santé prospective cohort.

PUBMED • 2025 • Human evidence curation set

PMID 40198579 from PLoS Med.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
12. Dietary Emulsifier Exposure in People With Inflammatory Bowel Disease Compared With Healthy Controls: Is There a Cause for Concern?

PUBMED • 2024 • Human evidence curation set

PMID 38244236 from Inflamm Bowel Dis.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
13. Ultra-Processed Foods and Inflammatory Bowel Disease: A Narrative Review of Epidemiology, Mechanisms, and Dietary Implications.

PUBMED • 2025 • Human evidence curation set

PMID 41470798 from Nutrients.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
14. Sulfated polysaccharides accelerate gliadin digestion and reduce its toxicity.

PUBMED • 2024 • Human evidence curation set

PMID 38160531 from Biochem Biophys Res Commun.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
15. Exposure to food additive mixtures in 106,000 French adults from the NutriNet-Santé cohort.

PUBMED • 2021 • Human evidence curation set

PMID 34608173 from Sci Rep.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
16. Food-grade carrageenans and their implications in health and disease.

PUBMED • 2021 • Human evidence curation set

PMID 34146449 from Compr Rev Food Sci Food Saf.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source
17. Toxicological and Teratogenic Effect of Various Food Additives: An Updated Review.

PUBMED • 2022 • Human evidence curation set

PMID 35782077 from Biomed Res Int.

Outcome: See linked PubMed abstract for methods and outcomes.[1357,1531,2651, etc.]

Open source