If a camera snaps everything you eat, you can't lie about it later. That's why scientists are building high-tech gadgets to measure the human 'exposome'.
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Brendan Borrell is a freelance writer based in New York.
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Borrell, B. Epidemiology: Every bite you take. Nature 470, 320–322 (2011). https://doi.org/10.1038/470320a
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DOI: https://doi.org/10.1038/470320a
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