Renal Powder PentaSure Renal contains essential vitamins and minerals are substances that aid body function by using the foods you eat. PentaSure Renal also gives you energy, help the body grow and repair tissue, and more. According to the Institute of Medicine, the human body needs at least 13 vitamins to function properly. Following a balanced diet is the preferred way to get the recommended amount of these vitamins, however, people with chronic kidney disease (CKD) often cannot get all the recommended vitamins for varying health reasons