Is your salad going to kill you?

Plants need nitrates for good growth, but they can also accumulate in leaves of crops like rocket. So are foods like this safe to eat, wonders James Wong

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https://www.newscientist.com/article/2238043-is-your-salad-going-to-kill-you/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home

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