Ambulatory surgery centers are free-standing facilities with operating rooms, but they are not hospitals. These centers perform procedures that allow the patient to recover at home once anesthesia has worn off and the patient is able to care for themselves with minimal assistance.
It is not strictly an amino acid. Taurine is present in bulls liver, semen and urine. One thing is for certain, the taurine used in energy drinks such as Red Bull is taken from these sources. Taurine found in energy drinks is a byproduct of bull testicles, it is considered not to be vegetarian friendly. The ingredient is taurine, a naturally occurring substance that is present in bull bile and breastmilk. The video shows how this ingredient is extracted from the bulls. It was filmed by an employee of the company that supplies this ingredient to the various energy drink companies.
Taurine is listed as an ingredient in many energy drinks. Answers from Katherine Zeratsky, R.D., L.D. Taurine is an amino acid that supports neurological development and helps regulate the level of water and minerals in the blood. Taurine is also thought to have antioxidant properties. Taurine is found naturally in meat, fish and breast milk, and it's commonly available as a dietary supplement. Some studies suggest that taurine supplementation may improve athletic performance, which may explain why taurine is used in many energy drinks. Other studies suggest that taurine combined with caffeine improves mental performance, although this finding remains controversial.