i am not in the loop on latest PED peptides, "legal" epo like substances, know something about amino acids and bicarb, and they are certainly performance enhancing. there is a massive library of animal and plant extracts, breathing argon gas, "exotic" friendly bacteria mixtures, on and on that are all performance enhancine.
this Hoey is most definitely on a "special" vitamin protocol, and maybe legal, we'll see if he pops, or has the blood passport misaligned, which it has to be, illegal PED or not.
in the end, we're talking about pseudo "natural" ways to enhance performance, which is actually an advance in medical science, and is a particularly useful experiment.