Why salt is bad. The amount of salt you eat has a direct effect on your blood pressure. Salt makes your body hold on to water. If you eat too much salt, the extra water stored in your body raises your blood pressure.So, the more salt you eat, the higher your blood pressure.The higher your blood pressure, the greater the strain on your heart, arteries, kidneys and brain.This can lead to heart attacks, strokes, dementia and kidney disease.alt makes your body hold on to water. If you eat too much salt, the extra water stored in your body raises your blood pressure. So, the more salt you eat, the higher your blood pressure.
Signs and symptoms of acute kidney failure may include: Decreased urine output, although occasionally urine output remains normal Fluid retention, causing swelling in your legs, ankles or feet
Kidney disease is called a âsilent diseaseâ as there are often no warning signs. People may lose up to 90 per cent of their kidney function before getting any symptoms. The first signs of kidney disease may be general and can include: high blood pressure; changes in the amount and number of times urine is passed (for example, at night)