Taurine is produced by the human body, mostly in the liver. "I see it becoming one of the highest priority molecules for human testing," said Joseph Baur, who was not involved in the new study, but wrote an accompanying perspective article and is a professor of physiology at the University of Pennsylvania's Perelman School of Medicine. Still, other researchers are enthusiastic about the findings. To figure that out will take a large, yearslong, very expensive clinical trial giving some people taurine and others a placebo. Once we have a human intervention trial, we will know whether there's a fire or not," said Wackerhage, adding that neither he nor any of the study's authors received any funding from producers of taurine or related products. What's not yet clear is whether taking taurine supplements will make any difference for human health or lifespan. "Taurine somehow seems to hit the engine room of aging," said Henning Wackerhage, a co-author and professor of exercise biology at the Technical University of Munich. Middle-aged monkeys, too, lived healthier lives for longer after receiving taurine supplements, according to the study, published Thursday in the journal " Science". Older mice whose levels of taurine are "topped back up" to youthful levels lived 10% to 12% longer and were healthier, leaner, had denser bones and were less likely to be depressed. The study also looked at a group of 12,000 people and showed that those with low taurine levels were more likely to be ill. Levels of taurine, which are made in the body and eaten in food, naturally decline with age. The amino acid taurine appears to improve health and extend the lifespan of worms, mice and monkeys, according to a new study, though further research is needed to confirm whether it can do the same in people.
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