Laboratory / cell studyindependent cross-checkabstract checked I-CHK-113 standard review
Defective chicken breasts were digested even faster in the lab
Estimating In Vitro Protein Digestion and Protein Digestibility Corrected Amino Acid Score of Chicken Breasts Affected by White Striping and Wooden Breast Abnormalities.
Overview
Srimarut Y et al.. Foods 2024 · PMID 38201187 · DOI 10.3390/foods13010159
Breast with wooden breast and white striping was broken down more, not less, in simulated digestion.
Does the study support the specific claim? No · Methodological quality: low
Plain-language summary
Study explained simply
- What did the researchers want to find out?
Do white striping and wooden breast change in vitro protein digestion and PDCAAS of cooked breast?
- How was the study done?
In vitro digestion and in vitro PDCAAS
- How many people, animals or samples were studied?
not stated in abstract
- What was actually found?
WS+WB samples had lower protein content, greater cooking loss and lipid oxidation; greater free NH2 and degree of hydrolysis at all phases; higher in vitro PDCAAS for all age groups (p < 0.05).
- How large was the observed effect?
WS+WB samples had lower protein content, greater cooking loss and lipid oxidation; greater free NH2 and degree of hydrolysis at all phases; higher in vitro PDCAAS for all age groups (p < 0.05).
- What do the results mean in everyday life?
No sign that woody breast is hard to digest.
- What are the study's limitations?
In vitro only; Sample size not in abstract
- What does it say about Elawady's specific claim?
Contradicts 'indigestible'.
- Do the results apply to Germany and Europe?
General.
- What can explicitly not be concluded from this study?
No human data; lower protein content per gram.
Scientific in-depth review
1. Full reference
- Authors
- Srimarut Y et al.
- Journal
- Foods
- Year
- 2024
- Identifier
- PMID 38201187 DOI 10.3390/foods13010159
- Verification
- verified – PubMed efetch 2026-10-26; Crossref 2026-10-26
- Retracted
- no
- Corrections
- none
- Extent checked
- abstract only
- Conflicts of interest and funding
not stated in abstract
2. Research question
Do white striping and wooden breast change in vitro protein digestion and PDCAAS of cooked breast?
3. Study design and population
- Study design
- Laboratory / cell study – In vitro digestion and in vitro PDCAAS
- Population
Cooked chicken breasts: normal, WS, WS+WB
- Country
Thailand
- Period
not stated
- Sample size
not stated in abstract
- Inclusion and exclusion criteria
as described in the abstract
4. Methods and endpoints
- Exposure / intervention
WS + WB abnormality
- Comparator
Normal breast
- Endpoints
Protein content, degree of hydrolysis, in vitro PDCAAS
- Statistical methods
as reported in the abstract
5. Actual results
- Results
WS+WB samples had lower protein content, greater cooking loss and lipid oxidation; greater free NH2 and degree of hydrolysis at all phases; higher in vitro PDCAAS for all age groups (p < 0.05).
- Absolute risks
not reported
- Authors' conclusion
Cooked WS+WB breast might provide greater protein digestibility than normal breast.
6. Strengths
- Simulated full digestion
7. Weaknesses
- In vitro only
- Sample size not in abstract
8. Risk of bias
- Orienting tool
- none applicable
- Type of assessment
- simplified assessment (abstract only)
- Full formal assessment
- no
- Overall risk of bias
- some concerns
- Rationale
In vitro.
9. Assessment of the statistical interpretation
If anything, abnormal breast proteins were broken down faster.
10. Relevance to the specific claim
Second independent in vitro test of digestibility of 'woody' breast.
11. Independent contrary findings
12. Transferability to Germany and Europe
13. Overall methodological judgement
Breast with wooden breast and white striping was broken down more, not less, in simulated digestion.
| Multidimensional assessment | |
|---|---|
| Authenticity of the source | verified |
| Methodological quality | low |
| Risk of bias | some concerns |
| Precision of results | low |
| Directness | indirect |
| Reproducibility | partly replicated |
| Consistency with the overall evidence | consistent |
| Regional transferability | high |
| Adequacy of the interpretation (by the archive) | not applicable |
14. Open questions
15. Linked fact checks
- Modern chicken breast is indigestible and damages the digestive system and gut microbiome. – Studies contradicting or limiting the claim