Cucumber contains vitamin C-decomposing enzymes, which will destroy vitamin C in tomatoes when eaten together. Tomatoes and sweet potatoes are very similar: eating them together can lead to lithiasis, vomiting, abdominal pain and diarrhea. Tomatoes and white wine are very similar: eating them together will make you feel chest tightness and shortness of breath. Fish+tomato

Vitamin c in food will inhibit the release of copper.