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The kidneysWhat they do: acting rather like a water purification plant that keeps a city's water drinkable and disposes of its wastes, the kidneys filter out toxins, waste products and excess sodium from the blood, disposing of it in urine. They also produce an enzyme that regulates blood pressure.
Kidney overload: a diet rich in salt strains the kidneys. With men currently consuming 10g of salt a day and women 8g on average, we are eating 4g and 2g more respectively than the recommended intakes. Drinking too little fluid concentrates the urine, increasing the risk of mineral salts forming stones and interrupting the filtering mechanisms.
Kidney detox# Reduce salt. Choose salt-reduced bread; porridge and shredded wheat; cook meat, fish and poultry minus sauces and with minimal salt; opt for fresh or frozen vegetables or those canned in water.
# Drink two litres of water daily, plus an extra litre for every hour of exercise, and cranberry juice to reduce the risk of urinary infections.
# Reduce foods likely to stimulate kidney stones, such as red meats, seafood, spinach, rhubarb and chocolate.
# Eat naturally diuretic foods such as asparagus, celery and watermelon.
# Take gingko biloba. A powerful antioxidant and anti-inflammatory, it also improves blood flow to the kidneys.