- INGREDIENT HALAL: taurine, often found in energy drinks, was mostly derived from pig gall said the Indonesian Ulema Council (MUI)

Indonesia:
Energy drinks, tea, packaged coffee drinks, soft drinks and packaged juice, had to get halal certification.
The Indonesian Ulema Council (MUI) said Tuesday that non-alcohol drinks were not necessarily halal (allowed under Sharia law), and still needed MUI halal certification.
“They sometimes contain ingredients like taurine, pepsin, gelatin, active carbon or coating,” executive director of the Cosmetics and Drugs Monitoring Institution at the MUI, Lukmanul Hakim, said as quoted by Antara news agency. He said taurine, often found in energy drinks, was mostly derived from pig gall.

Other additives, included pepsin, gelatin, clarifiers and stabilizers to make drinks look clear and cloudifiers to make juice look cloudy, came from animals, Lukman said. Active carbon and flavors for fruity aromas came from animals.
Ingredients from pigs were the most popular among producers because pigs bred fast, and were easily available and low-cost. ...
Read + Non-alcohol drinks should get halal certification: Ulema Council The Jakarta Post