Doctors prescribe L-DOPA for Parkinson's disease and other movement disorders tied to low dopamine. Supplement forms come from the Mucuna pruriens plant and are marketed for mood or cognitive support, but there is little evidence they work in healthy people.
Some people use L-DOPA hoping to improve mood, motivation, or focus, but rigorous studies in healthy adults do not back these uses. Taking it with food can ease stomach discomfort, although high-protein meals may reduce how much gets absorbed.
L-DOPA is a potent drug with a narrow safety margin. Without medical supervision, misuse can trigger involuntary movements (dyskinesias), psychiatric issues like worsened anxiety or psychosis, and interactions with many medications. Healthy individuals should avoid L-DOPA unless a doctor prescribes it.