date:May 22, 2012
But an influential recent toxicology study raised the question of whether the plant extractsunusual bitter taste could restrict its appeal to certain people and regions.
Guayakis previous offerings include bottled cold drinks, tea bags, loose leaf tea and energy shots all using a yerba mate (IIex Paraguariensis), a natural caffeine source derived from the leaves and stems of the South American holly tree.
According to Guayaki, the tree contains 24 vitamins and minerals, 15 amino acids and ant