article suggests a form of intense immune response, some sugars can trip these immune system tripwires rather easily. (look up meat allergy) the proper question is, how selective it can get and what are side effects

because platinum sucks, and if you want to get real selective, you can tie together antibody and something like diphtheria toxin, but it’s not chemistry anymore, that’s firmly in biology ballpark

no because your liver makes sugars anyway. however there’s a more limited, more targeted way to deplete blood of select aminoacids that some cancers can’t make (asparaginase can be used this way)

it’s one of these things that sound good and doesn’t work. many such cases

it’s not funny only if it’s your job to clean up after them