The Claim
Consumption of A1 beta-casein is associated with elevated TNF-alpha levels in gut tissue of animal models.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
A1 beta-casein consumption is linked to higher levels of TNF-alpha in the gut tissue of animals.
See the scientific wording
A1 beta-casein consumption is associated with elevated TNF-alpha levels in gut tissue of animal models (n=12, p<0.05), suggesting a link between A1 beta-casein digestion and local intestinal inflammation.
When A1 beta-casein is digested, it releases a peptide called BCM-7. This peptide binds to receptors in the gut, which blocks the absorption of an amino acid called cysteine. Without enough cysteine, the gut cannot make enough of a protective antioxidant called glutathione. The lack of glutathione causes oxidative stress, which triggers the release of the inflammatory signal TNF-alpha in the gut lining.
What the research says
1 studyIn animals, milk with A1 beta-casein caused more gut inflammation (shown by higher TNF-alpha) than milk with A2 beta-casein, just like the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.