Aluminum cookware may leach aluminum compounds into food. The person consuming this food then incorporates the aluminum into their body. Acidic foods cause more aluminum leaching than alkaline or pH neutral foods. However, the World Health Organization estimates that a person can consume 50 mg of aluminum per day without adverse health effects. According to Environment, Health and Safety Online, acidic tomatoes cooked in an aluminum pot collected only 3 to 5 mg of aluminum per serving. Anodizing of aluminum cookware creates a more formidable barrier to leaching. Aluminum cookware in good condition leaches less than that with scratches or pits.
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