Complex sentence: Prior to consuming a meal, the body's energy reserves are in reasonable homeostatic balance; however, when a meal is consumed, there is a homeostasis-disturbing influx of fuels into the bloodstream.
Split into simpler sentences: Prior to consuming a meal, the body's energy reserves are in reasonable homeostatic balance. However, when a meal is consumed, there is a homeostasis-disturbing influx of fuels into the bloodstream.