Methionine is available as a dietary supplement and is often used for its perceived benefits in supporting liver health and improving hair, skin, and nail quality. However, the safety of methionine supplementation depends on the dosage and individual health conditions. It is generally considered safe when consumed in moderate amounts, but high doses can lead to adverse effects such as nausea, vomiting, and increased risk of atherosclerosis due to elevated homocysteine levels.
