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

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

EATING healthily can be tricky, especially for avid followers of the latest food- related headlines. Even fare touted as a superfood one day can be vilified as a cancer risk the next. Perhaps nowhere is this more the case than in recent claims about rocket, a salad leaf.
It is at the centre of cancer concerns, said one story, a strong accusation to level at a humble leaf. The claim hinges on high levels of nitrates that rocket contains. Is there any clear evidence to back it up? No, not when you dig a bit deeper into the complex …

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