> group that developed the gut biome to be able to eat cheese/dairy
Why would one need to "develop" a gut biome to eat cheese/dairy? Have you ever heard of breast-feeding? Yes, you may be surprised to hear that even Asians can breast feed.
What you seem to be thinking about is lactose intolerance, which is not due to a gut biome issue but due to genetic or environmental factor causing a deficiency of lactase, a protein, after infancy. Lactase persistence is not common in many ethnic groups.
There is evidence that a biome habituated to certain strains of lactobacillus can allow those that would otherwise be intolerant to become tolerant, but that has nothing to do with the cause of lactose intolerance.
> Whereas one of my exes was Asian and would get IBS whenever she ate cheese.
IBS is a functional digestive pain syndrome. It has nothing to do with lactose intolerance. For someone epeening about their medical knowledge, you seem to know very little to back it up.
Why would one need to "develop" a gut biome to eat cheese/dairy? Have you ever heard of breast-feeding? Yes, you may be surprised to hear that even Asians can breast feed.
What you seem to be thinking about is lactose intolerance, which is not due to a gut biome issue but due to genetic or environmental factor causing a deficiency of lactase, a protein, after infancy. Lactase persistence is not common in many ethnic groups.
There is evidence that a biome habituated to certain strains of lactobacillus can allow those that would otherwise be intolerant to become tolerant, but that has nothing to do with the cause of lactose intolerance.
> Whereas one of my exes was Asian and would get IBS whenever she ate cheese.
IBS is a functional digestive pain syndrome. It has nothing to do with lactose intolerance. For someone epeening about their medical knowledge, you seem to know very little to back it up.