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What is it? Overview Usage Side Effects and Warnings

What is Inosine?

Inosine is an important chemical found throughout the body. It plays many roles, one of which is helping to make ATP (adenosine triphosphate), the body's main form of usable energy. Based primarily on this fact, inosine supplements have been proposed as an energy-booster for athletes, as well as a treatment for various heart conditions.

Inosine has been proposed as a treatment for various forms of heart disease, from irregular heartbeat to recovery from heart attacks . 1 However, the evidence that it offers any benefit to the heart remains far too preliminary to rely upon at all.

Inosine is better known as a performance enhancer for athletes, although most of the available evidence suggests that it doesn'twork for this purpose. 2 ** Inosine has also been suggested as a possible treatment for Tourette’s syndrome, a neurological disorder. 3

Safety Issues

Although no side effects have been reported with the use of inosine, long-term use should be avoided. A very preliminary double-blind crossover study that enrolled 7 participants suggests that high doses of inosine (5,000 to 10,000 mg per day for 5 to 10 days) may increase the risk of uric acid–related problems, such as gout or kidney stones. 4 The safety of inosine for young children, pregnant or nursing women, or those with serious liver or kidney disease has not been established.

As with all supplements taken in multigram doses, it is important to purchase a reputable product, because a contaminant present even in small percentages could add up to a real problem.