Are we about to get a link to a website telling us the answer to this question? and is said website going to be paid subscription or selling some health boosting product?
1. Any foodstuff which you are allergic to
2. Shellfish which have gone off
3. Rice which was made a few days ago and may have developed into something toxic
4. Undercooked pork or chicken
5. Food which has been cooked by someone who didnt wash their hands and can pass on something nasty etc
I remember when I was 14 and my elder brother was 17, mum had called us in for dinner. We were in the sluice hosing off our wellingtons, when just before entering the kitchen we heard mum say to dad, 'and if you don't get rid of those magazines in the bottom of the wardrobe, I'
I'm going to burn them. Later when they went out, we sneaked upstairs into their bedroom, only to find five dozen copies of Farmers Weekly! (much to my brother's chagrin!)