Planetary Herbals, Nopal Cactus, Full Spectrum, Prickly Pear Cactus, 1,000 mg, 120 TabletsHerbal Supplement Approved by Michael Tierra L. Ac, O. M. D. For centuries, nopal (Opuntia spp.) the Mexican prickly pear cactus, has been consumed as a source of food and health. Clinical research suggests that nopal helps support healthy glucose balance when consumed with meals as a regular part of a healthy diet. By aiding the cells in absorbing blood sugar for energy, Full Spectrum Nopal Cactus aids the body in energy production and sugar balance.