This has always been true? The vast majority of scurvy research was unreplicatable bullshit, and for hundreds of years if you “Trusted the Science(TM)” on scurvy, you were liable to die horribly on long ocean voyages. Mind you, if you didn’t Trust the Science you’d die just the same.

Then, someone worked out a theory and replicable experiment (humans and guinea pigs are the only mammals that die horribly when not fed vitamin C) and with a replicable experiment in hand, you could use little s science and now no one gets scurvy, trust not required.