Pregnant women should not drink Red Bull. Red Bull is a functional drink that is designed to refresh, replenish and fight fatigue, but only for healthy men and women, and not for pregnant women. Red Bull contains a high dose of caffeine, plus it is often mixed with vodka, a high-alcoholic spirit, which raises the risk of drinking it. But in any case, drinks and foods that contain high levels of caffeine are harmful when taken excessively. In addition, although taurine was first discovered in cows, it is now mainly synthesized. Taurine is a substance originally contained in the human brain, and its lack causes fatigue. Therefore, taurine supplementation can achieve the effect of refreshment, so pregnant women should not drink Red Bull.