The whole industry of nutrition and vitamins is a minefield of deception and fraud but I was fortunate (I hope) and now that is my main course of treatment. It would help if vitamins could be regulated but the regulators and Big Pharma are rife with...fraud and deception.
In a perfect world 5 MD's and 5 Phd researchers experienced in nutrition and diet with unimpeachable reputations from Harvard and MIT would settle on protocols that are effective (they do exist) and put the onus on the patient to take responsibility for their own improvement period end-of-story.