Red Bull and Monster don’t contain bull semen

5th Sep 2019

Claim

Red Bull and Monster energy drinks contain bull semen.

Conclusion

Incorrect. They contain taurine, which is present in bull semen, but the drinks use synthetically produced taurine.

A viral Facebook post that’s been shared over 6,000 times claims that Red Bull and Monster energy drinks contains bull semen.

They do not.

The post highlights an ingredient called taurine in Red Bull’s ingredient list. Taurine is an acid present in all sorts of animals, including humans, and only called taurine (derived from the Greek word for bull) because it was first isolated from ox bile.

Taurine is present in bull semen. However Red Bull says the taurine in their drinks is produced synthetically. The People for the Ethical Treatment of Animals (PETA) list Monster energy drink as vegan and we’ve asked Monster to confirm this as well.