The contraindications of carambola are as follows: first, it is not suitable for patients with kidney disease, because carambola contains a neurotoxin, which can be metabolized by ordinary people after eating, but can not be excreted by patients with kidney disease, which may lead to poisoning, and patients with kidney disease can not remove the virus through the kidney. Second, stones will grow, because there is a lot of oxalic acid in carambola, which will accumulate in the body, and stones may be produced after long-term use. Moreover, carambola is a kind of cold fruit, and some people may cause indigestion if they eat it. Don't eat dairy products when eating carambola, because carambola contains more vitamins, which is easy to combine with lactolipoprotein in milk, so it is easy to form clots and thus diarrhea. Moreover, when eating carambola, you can't eat seafood and other foods. It is also easy to cause diarrhea, which may be fatal if there are more. Generally speaking, there are few dietary taboos when eating fruit, but it is best to pay attention before eating every time.