Supplements are a pillar in the longevity space. Anti-ageing entrepreneur Bryan Johnson takes more than 100 a day, from the classics like vitamin C to the more recherché spermidine and L-theanine. US Health Secretary Robert F Kennedy Jr is a fan of peptides, while Goop queen Gwyneth Paltrow swears by phospholipids, which she says supports brain health.
The global supplement market is worth more than $200billion, according to Precedence Research. Yet the catch is that very few of them are scientifically proven to work. Take NAD+ IV drips, which are used by everyone from Hailey Bieber to Joe Rogan for their promise to rejuvenate cells although there is no good evidence to show they are effective.
