Hold the lime! Could eating citrus zest and peel really be bad for your health?

Food safety campaigners have long been concerned about pesticide residues on lemons, limes and oranges – and now a social media post about it has gone viral. How safe is it to eat lemon cake or drink a G&T with ice and a slice? Do you sprinkle citrus zest on to your cooking or drink hot water with a slice of lemon?

According to an Instagram post that went viral last week, you shouldn’t. “Select citrus fruits at Lidl now come with a ‘Peel unfit for consumption’ warning,” posts @wholefoodwarrior. She photographs some of the supermarket’s labels, which list the post-harvest chemicals used to conserve the fruit: azoxystrobin and fludioxonil…