The Claim
Native casein digestion releases opioid-like peptides that reduce gastrointestinal transit by approximately 26 percentage points in rat pups, as measured by colonic carmine red movement, compared to hydrolyzed casein.
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.
When native casein is digested, it produces peptides that slow down the movement of material through the gastrointestinal tract of rat pups by about 26 percentage points compared to hydrolyzed casein, as measured by colonic carmine red movement.
See the scientific wording
Native casein digestion releases opioid-like peptides that reduce gastrointestinal transit by approximately 26 percentage points in rat pups, as measured by colonic carmine red movement, compared to hydrolyzed casein.
When a baby rat eats regular milk protein, its stomach breaks it down into small pieces that include opioid-like molecules. These molecules bind to special receptors in the gut wall, which tells the muscles to slow down. This makes food move through the colon much slower. If the milk protein is already broken down before eating, those opioid molecules don't form, so the gut muscles move food along normally.
What the research says
1 studyWhen baby rats eat regular casein (like in milk), their intestines move food slower by about 26% compared to when they eat pre-digested casein — because the regular casein releases natural opioid-like molecules that slow things down.
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.