Caution should be exercised with home-grown pumpkins. In addition to back mutations, unintentional cross-breeding with pumpkin plants can occur. Like ornamental pumpkins or wild pumpkin plants, the latter contain so-called cucurbitacins. These can lead to poisoning symptoms, such as diarrhoea, palpitations and nausea. Bitter-tasting pumpkins should, therefore, not be used in the kitchen. Better dispose of them sensefully.