Author: Maryam Ayres
Time for reading: ~4
minutes
Last Updated:
February 16, 2026
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First of all, do these bovine casomorphins form within the human digestive tract when we drink milk?
Yes, seemingly so.
But, this poll changed into on babies, who obviously have leakier guts. Do fully intact casein-protein fragments make it into the bloodstream after infancy?Yes, even into maturity, elevating stages within the blood for as a minimum eight hours after intake.
And, those with autism may also have an particularly leaky gut—at extensively better chance for abnormally high intestinal permeability, which may additionally provide an explanation for why the extensive a lot of the autistic children may additionally have antibodies of their blood to wheat and dairy proteins, compared to a small minority of everyday kids. And, based on allergic reaction experiences, even supposing an toddler is strictly breastfed, they will still be uncovered to bits of bovine milk proteins if the mom beverages milk, as the bovine protein fragments can get into her blood, then her breast, then into her infant’s frame.But, does it get into the baby’s brain?
Yeah, those with autism are more likely to be afflicted by leaky intestine, but the so-known as “opioid extra idea” relies upon on casomorphins not only getting into the bloodstream, but up into the imperative nervous gadget, the brain.When you look at the brain tissues of those with autism, their blood-mind barrier seems leakier, too.
And certainly, proof for the presence of casomorphins inside the brains of infants has due to the fact that “been showed”—which, once more, just makes sense. That’s the entire presumed factor of casomorphin opioids—to have an effect on the brains of babies, in order that they crave the milk, cry out for the milk, strengthening the mother-toddler bond, the cow-calf bond.That’s what’s supposed to occur;
Well, that is ordinary and natural.
This? Not so much.Human infants with proof of better baseline stages of bovine casomorphins of their blood seem more likely to be laid low with psychomotor delay, that's a degree of muscle, language, and mental characteristic development.
But the opposite turned into observed for human infant publicity to human casomorphins—which means human casomorphins seemed to be useful within humans. See, much like bovine casomorphin degrees inside the child’s blood appear to rise after feeding cow’s milk components, human casomorphin ranges upward thrust in the toddler after breastfeeding, and that’s what’s supposed to show up.“The best [baseline human casomorphins] was discovered in breastfed toddlers with ordinary psychomotor development and muscle tone.
In assessment, accelerated [baseline bovine casomorphins] observed within [cow’s milk-]method-fed toddlers [was associated with] put off[ed] psychomotor improvement” and stiffened, extra inflexible, muscle tone.breast milk is right for toddlers.
“Indeed, the shape of bovine and human [casein is dramatically different],” and the bovine and human casomorphins themselves are distinct molecules, differing through amino acids, which ends up in substantially specific potencies. Compared to human casomorphin, bovine casomorphin “is especially amazing and [more] just like morphine in its consequences.” A -amino acid difference doesn’t look like loads, but casomorphins are only seven amino acids long!This 30% or so distinction “likely defines [the] distinction of their biological houses.
This is why bovine casomorphins had been known as “the satan within the milk.” But, are they formed from all cow’s milk?
What about so-known as “A2” milk? The “A2 [milk] Corporation” factors available are distinct “versions” of casein.Some cows deliver milk with a kind of casein dubbed A1, and different cows offer milk with A2 casein, which differs from A1 casein “by a unmarried amino acid”—but strategically placed such that A1 casein breaks down into casomorphin, which acts like morphine, “and is implicated in digestive, immune, and brain improvement adjustments.” But, supposedly, A2 milk does now not.
Put A1 milk in a check tube with a few digestive enzymes, and the A1 casein breaks down into casomorphin. But, due to that amino acid difference, the A2 casein breaks down at a special spot.And so, no casomorphin is shaped.
But, this changed into the usage of digestive enzymes from pigs, or cows, that are just cheaper and easier to buy for laboratory experiments.And so, what takes place in a pig’s stomach or cow stomachs may not necessarily be what happens in the human digestive tract.
But, the A1 as opposed to A2 breakdown test had never been accomplished with human enzymes before, till…now. Human stomach and intestinal juices had been accrued, and the devil become in each.The opioid casomorphin was constructed from both A1 and A2 milk.