I read articles that claim taurine is a remedy for heart problems. I was having some issues with my heart, so I tried this. I took one quarter of a teaspoon twice a day, and after four days my heart was back to normal. Many benefits are claimed for taurine, including relieving inflammation, pain relief, improving brain health and mental focus, improving athletic performance, improving eyesight, relieving muscle soreness. Taurine might lower blood pressure. Many bodybuilders take taurine. Taurine is naturally found in fish, meat, eggs, clams, and goat milk, but when food is cooked, some of the taurine is lost. Taurine supplements are synthetic and made in a lab. Almost all taurine supplements are sourced from China. If it says made in the USA on the label of a taurine supplement, it might mean taurine sourced from China was put into a container in the USA. The only difference between brands is probably how well they test the taurine for impurities. If you make homemade cat food for your cat, you need to add taurine to it. In cats, a taurine deficiency can lead to blindness and heart failure. Not getting enough taurine can also cause Hair loss and tooth decay in cats. Most commercially made cat food contains taurine, but some don't have enough in it. This taurine powder has no extra ingredients, so it is ideal for cats. UPDATE This really worked. But after taking it for a week I suddenly had a bad allergic reaction to it, so I had to stop taking it