The problem of metabolic disturbances in schizophrenic patients who take antipsychotics has always been a cause for global concern and discussion. Although Hawthorn is widely used in the treatment of heart problems and the lowering of blood lipid levels, it is unknown whether Hawthorn has an effect in schizophrenic patients treated with antipsychotics. Hence, there are several areas of interest in the present study: 1) the effect of Hawthorn on lipid profile levels in schizophrenic patients treated with antipsychotics; 2) a comparison of lipid profile levels between schizophrenic patients and healthy adults; 3) the contributing factors that relate to changes in lipid profile levels in patients who take Hawthorn.