Don't Want to Harm Your Kidneys:
Consume Less Old Soup
"Nutrient-rich soups" often contain high levels of protein. Consuming soup and the "residue" regularly puts a metabolic burden on the kidneys. Prolonged stewing increases the purine content in the soup significantly. High purine intake can lead to hyperuricemia, causing sudden spikes or drops in blood uric acid levels. Apart from triggering acute gout attacks, it may also result in damage to the kidneys and cardiovascular system.