Astaxanthin-fortified yogurt

ID: astaxanthin_fortified_yogurt

Aliases: astaxanthin yogurt, astaxanthin functional yogurt

Type: formulation

Route/form: oral functional-food concept; main microbiome source is an in vitro SHIME model

Status: research_food

Evidence level: mechanistic

Best data tier: mechanistic/chemistry

Support scope: non-human/mechanistic, review/regulatory

Source types: government_review, in_vitro, regulatory_review

Linked sources: 3

Broad outcomes: Gut / immune / inflammation, Longevity / mitochondrial / redox

Reading note: These are curation notes anchored to linked sources, not a clinical recommendation or protocol.

Targets / mechanism

• SHIME gut-simulator microbiota shifts
• short-chain fatty acid production
• microbiota-mediated astaxanthin conversion

Optimization domains

• gut health
• microbiome
• fermented food
• SCFA
• functional food
• oxidative stress

Research basis

• A SHIME model study reports astaxanthin yogurt increasing SCFAs, enriching several potentially beneficial genera, and suppressing selected opportunistic taxa.
• This is useful as a functional-food lead linking carotenoids, fermented dairy, and microbiome metabolite hypotheses.

Limits, risks, and missing evidence

• The main microbiome evidence is an artificial gut model, not a human outcome trial.
• Yogurt matrix, astaxanthin form, dose, and baseline microbiome may all change translational relevance.

Risk flags

• in vitro model
• not human outcome data
• food matrix specific
• product variability
• standardization uncertainty

Linked papers, labels, and reviews

1. Investigating the impact of astaxanthin yogurt on gut microbiota and microbiota-mediated astaxanthin conversion using the SHIME model
   in_vitro / rsc_astaxanthin_yogurt_shime_2026
   Food & Function SHIME gut-simulator study reporting SCFA increases, microbiota shifts, and astaxanthin conversion signals.
2. Microorganisms & Microbial-Derived Ingredients Used in Food
   government_review / fda_microorganisms_food_yogurt_cultures
   FDA context page noting mandatory yogurt cultures and optional lactic-acid-producing bacteria in standardized foods.
3. Union list of novel foods: astaxanthin-rich oleoresin from Haematococcus pluvialis algae
   regulatory_review / eurlex_astaxanthin_novel_food_spec
   EU novel-food specification context for astaxanthin-rich oleoresin products and labeling restrictions.