WebSep 17, 2024 · We make one to three pints of this a day! 2) An adult's stomach can handle 1.5 litres of material. 3) Food stays in our stomachs for three to four hours. 4) The hydrochloric acid produced by the stomach to kill off harmful bacteria is also found in cleaning supplies including toilet bowl cleaners - it's strong stuff! WebEveryone needs the same vitamins and minerals, but the amounts you need vary with age and sex. For example: A teenage boy needs 1.0 g of calcium every day, but an adult man needs just 0.70 g....
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What is in your blood? - BBC Bitesize
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