The fact that they argued that leghemoglobin is safe because it is similar to other globins is kind of weird. A chemistry professor once told me that the chemical Thalidomide is a medicine that can be used to treat morning sickness, but if you only reverse the chirality it can cause birth defects.
In case you don't know, if you reverse the chirality of a molecule it is essentially what the same molecule would be when viewed in a mirror, with all it's directions reversed.
In case you don't know, if you reverse the chirality of a molecule it is essentially what the same molecule would be when viewed in a mirror, with all it's directions reversed.
source: https://en.wikibooks.org/wiki/Organic_Chemistry/Chirality