Tree worship, perhaps a distortion of the tradition of the tree of life and the tree of knowledge (Genesis 3), may be traced in Egypt, Arabia, Syria, Assyria, Persia, India, Thibet, Siam, China, Japan, Ceylon, the Philippine isles. The Druids venerated oak groves (Pliny, H. N., xvi. 44; Tacitus, Annals xiv. 30).
It does contain more calories than regular milk, mostly because of the chocolate content. A good compromise is to make your own chocolate milk by mixing in chocolate syrup or cocoa to skim milk. This way, you'll get maximum health benefits while still enjoying the flavor of chocolate milk.
A chocolate bar and molten chocolate. Chocolate is made from the cocoa bean, which is a natural source of theobromine. Theobromine is the primary alkaloid found in cocoa and chocolate. Cocoa powder can vary in the amount of theobromine, from 2% theobromine, up to higher levels around 10%. There are usually higher concentrations in dark than in milk chocolate.