There is a subtle difference in the way sugar molecules are utilized. Momentarily, the body uses less sugar. However, sugar is important in fueling the consciousness on its journey. It also aids in connecting the consciousness to the body. In other words, there is indeed a connection that is and must be partially physical, between the body and the travelling consciousness, and it is based upon a certain sugar molecule in a form not normally seen. Before conscious projections I would therefore recommend that you take a small amount of starchy or sugar food. A small snack before bed is a good idea from this viewpoint. Alcohol is of some benefit, though not to any great degree. Excellent results can be achieved in a dream-based projection during the day, in a nap.