Not very sure. I've heard all sorts of assertions. I'm pretty sure that sugar and other carbs are a bad idea, since I've been diagnosed as diabetic. Also that too much animal fat and salt are bad - but thinking that things are bad doesn't always stop me indulging :(

The UK government recommends five portions (handful-sized) of different fruit and vegetables per day, but I don't even manage to do that, most days.

Sadly, the last time I got an appointment to talk about my diet, the nurse I had an appointment with turned out to be fatter than I am, and absolutely everything she said has slipped my memory, perhaps because I fail to believe the dieting advice of a fat nurse.

I think if I were given a few simple "doctor's orders" about food, I might be able to follow them, but don't think I can possibly hold dozens or hundreds of rules about food in my head - which is what all the stuff I recall reading consists of.