Tyrosine Side Effects and Warnings

Safety Issues

Tyrosine seems to be generally safe, though at high dosages some people have reported nausea, diarrhea, vomiting, or nervousness. As with any other supplement taken in multigram doses, it is important to use a high-quality product; even a very small percentage of contaminant in the product might add up to a dangerous amount.

Maximum safe dosages for young children, women who are pregnant or nursing, or those with severe liver or kidney disease have not been established.