For a (1) product which you enjoy but don’t really need, chocolate is extremely (2) beneficial to your health. Chocolate as we know it today first appeared in the 1800s, when liquid chocolate was poured into a (3) shaped container to cool and become solid. Then the chocolate (4) maker Lindt discovered how to make chocolate (5) break easily by adding extra cocoa butter, and Daniel Peter first made milk chocolate using milk which had been (6) concentrated and then mixed with cocoa paste, which gave it a smoother (7) taste. But the (8) broad appeal of chocolate is the effect of both an (9) inherited ( ) characteristic and the 300 chemicals it contains, including vitamins.