Robert F. Kennedy Jr. is going viral on social media after he was caught on camera adding a mysterious blue liquid to his in-flight beverage, and internet sleuths believe they know what it is. The leading theory among X users is that the prospective health secretary was dosing his drink with methylene blue.

Kennedy Jr. (RFK Jr.) dropping blue liquid into a glass of water while on a flight went viral across social media. The footage, posted to platforms such as X and TikTok, drew widespread speculation from both RFK Jr.

Kennedy Jr. was spotted on a plane adding a blue liquid to his drink in a viral video that has sparked speculation online. Newsweek reached out to a representative for RFK Jr. outside of regular working hours via email for comment.

Robert F Kennedy Jr has left social media users scratching their heads after the Health and Human Services secretary nominee was recorded administering droplets of a mysterious blue liquid into his drink on board a flight.

Robert F. Kennedy Jr. was seen on a plane adding a blue liquid to his drink, leading to online speculation. The substance is believed to be methylene blue, known for its potential health benefits. This has attracted public interest as RFK Jr.

U.S. Secretary of Health nominee Robert F. Kennedy Jr. has been filmed seemingly putting a blue liquid into a glass of water while on a flight. While it has not been confirmed exactly what the liquid was, many social media users have claimed it was methylene blue — a synthetic blue dye.