This week, we saw Sen. Charles Schumer ask the FDA to investigate Prime Energy drinks, a brand favored by social media influencers and YouTube stars like Logan Paul.

The neon-colored drinks contain 200 milligrams of caffeine. That is about the equivalent of six Cokes, two Red Bulls or Rockstars, and two or three cups of coffee.

All in one 12-ounce drink.

Prime Energy drinks aren't even the worst though, in terms of caffeine. Celsuis Heat has 300 mg of caffeine. So does Bang and Rockstar Xdurance.

"Those are very high doses," said Tiana Barker, a registered dietitian with Intermountain Health. "Way more than the recommended, especially for adolescents."