The Claim
Intact β-casomorphin-7 is detectable in the plasma of neonatal dairy calves following milk feeding, with plasma concentrations peaking at day 3 and declining by day 21, demonstrating that the intestinal barrier in newborn calves permits absorption of this seven-amino-acid peptide.
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.
After drinking milk, newborn dairy calves have measurable levels of a seven-amino-acid peptide called β-casomorphin-7 in their blood. These levels rise by day 3 and decrease by day 21, showing that their intestines absorb this peptide during early life.
See the scientific wording
Intact β-casomorphin-7 is detectable in the plasma of neonatal dairy calves after milk feeding, with levels peaking at day 3 and declining by day 21, indicating that the intestinal barrier in newborns permits absorption of this seven-amino-acid peptide, which may have biological activity during early development.
When newborn calves drink milk, enzymes in their gut break down a milk protein to release a small opioid-like peptide. Because their intestines are still developing, this peptide passes through the gut wall into the blood instead of being broken down. The peptide builds up in the blood for a few days and then disappears as the gut matures and closes off.
What the research says
1 studyNewborn calves absorb a tiny opioid-like piece from milk into their blood, especially when fed certain types of milk, but this stops as they grow older — 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.