Protein is essential for basic bodily functions; it helps to build new cells whilst looking after the tissues within your body (which lets face it, is pretty essential). (trinityskitchen.com)
This is the number of calories you burn just keeping your organs alive and performing basic bodily functions. (completehumanperformance.com)
Apart from basic bodily functions like eating, playing is your baby's main job. (dadsadventure.com)