Potassium citrate is widely favored by nutritionists and in research for its excellent absorption profile and additional benefits, such as contributing to kidney health by helping to prevent kidney stone formation. The inclusion of calcium is a minor additional benefit, though the primary focus remains potassium. However, like other 99mg supplements, its overall efficacy for major impacts on heart health, fitness performance, muscle gain, or energy levels is constrained by the small quantity of elemental potassium provided per serving, requiring consistent long-term use for subtle effects.