A New York Times investigation highlights allegations against tech mogul Bryan Johnson, revealing serious side effects among participants in his supplement trials. His program, aimed at reversing biological age, was supported by a study that is now under scrutiny. Documents show that 60% of the 1,700 participants reported side effects, including hormonal issues and other health complications. Confidentiality agreements hindered employee feedback on negative results, and a fallout with a key researcher raises further doubts about Johnson's practices and claims regarding safety and efficacy.
"Longevity mix: A lot of comments about hating this as it is making them sick, vomit, have heartburn, etc.," one Blueprint employee told a colleague in early 2024.
Out of the roughly 1,700 participants, a whopping 60 percent experienced at least one side effect, according to documents viewed by the newspaper.
Blueprint executive and Johnson's longtime longevity doctor Oliver Zolman, who worked on the study, appears to have had a falling out with Johnson.
Blood tests showed that some participants saw their testosterone levels drop or developed prediabetes.
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