It's the magnesium I need

摘要

The Aztecs in Mexico called it chocolatl,meaning warm liquid.Emperor Montezuma is said to have consumed 40 cups a day.He also served it to his guests,the Spanish invaders of Alexico,in golden goblets as though it were a food for the Gods.The Spanish didn't like it as it was served to them as they found it rather bitter,but after the addition of sugar they built up quite a taste for it.The origin of the bitter taste will be clear to observant readers of our columns-alkaloids.