Comment Bad study - findings do not illustrate that at all (Score 0) 297
"The abundances of specific types of microbes were found to be more similar in identical twins, who share 100 per cent of their genes, than in non-identical twins, who share on average only half of the genes that vary between people. These findings demonstrate that genes influence the composition of gut microbes."
They make no mention at all as to if all of these twins were separated at birth, but I find that highly unlikely. If two people grow up in the same house, are raised by the same parents, and exposed to the same food, it would naturally follow that they would develop the same gut microbes, regardless of their DNA.
If they actually wanted to study if gut microbes were influenced by DNA, they should have ALSO done the same study on the same number of adopted siblings, and compared them to the twins.