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.
The difference in these types is the fat content. 1  Whole chocolate milk, made from whole milk, has the most fat and calories. An 8 oz. glass has 210 calories.  Reduced fat chocolate milk is made from either 1% or 2% milk, and an 8 oz. glass has 160 to 170 calories.