Yes! There are toxic food combinations. It happened to me, while I was in college.
I had a banana, yogurt and half a peanut butter sandwich ...then 20 minutes later 1/2 a tuna sandwick with orange juice, then a chocolate bar.
The result was a nausea but I couldn't vomit. I tried realizing that I had eaten something bad. I nearly died.
I had to lie down but couldn't due to the extreme nasea and each time I got up I got this migrane headache. I never had such pain in all my life! My head, my stomach and I could hardly walk.
I left campus walking one foot at a time as my head was splitting. My companion guarded me all the way down 6 city blocks as I was afraid to show weakness in the "hood". I was praying for a cop but there was no help, and it was getting dark, so we made our way to the subway.
Months later an article appeared in a popular magazine, listing
orage juice, tuna, chocolate, milk, and peanuts, as potential hazards if you consume 3 and I had consumed all 5!
The medical term for the reaction is anaphylactic shock and it could have killed me. The condition is grave and I would have gone to the hospital but the 90 minute ride and the 2 hours to walk home (one step at a time!) sufficiently cleared my body. (I should have gone regardless)
Luckilly I was in good shape, otherwise I'd be dead right now.
This experience was super bad, like Dante's hell , pure head pain, each time you move agony and this went on for hours and hours. 6 hours or torture and then 6 or more of being miserable and weak.
A doctor friend informed me that anaphylactic shock is caused by enzyme reversal.
Mysteriously your body's chemical reactions start to go backwards.
The "Life Force" stops flowing... no power at all, and it hurts, hurts hurts!!!
Pass it on.