Eating Zucchini Raw: Is it Dangerous?

Eating zucchini raw – (mostly) harmless

If the zucchini tastes neutral or sweet, there is nothing wrong with eating it raw. However, if you feel a bitter taste, it is best to dispose of the vegetables immediately: they are poisonous and inedible – both raw and cooked.

• The zucchini is a pumpkin plant and can, therefore, like some pumpkins, also contain the toxin cucurbitacins.
• Cucurbitacins are heat-stable and poorly water-soluble toxins. This means that the poison remains effective even if you boil or otherwise cook the vegetables.
• Buy the zucchini in stores, but don’t worry about eating the vegetables raw. The cucurbitacins were bred out, so the zucchini are harmless.
• The situation is different if you grow the vegetables in your own garden and also plant ornamental gourds nearby. Then backcrossing can occur and the zucchini contain the poison.
• However, they quickly taste good if the zucchini contains cucurbitacins. Even at a very low concentration, the vegetable tastes distinctly bitter. In this case, you should refrain from eating it – whether raw or cooked.
  The bitter substance cucurbitacin irritates the gastric mucous membranes and can lead to nausea. It also causes diarrhea. Depending on the concentration and amount ingested, eating a zucchini that contains cucurbitacin can lead to food poisoning.