Is Cucumber Skin Poisonous?

​It seems that years back when cucumbers had bitter skins, they were full of phytochemicals called cucurbitacins which although had anticancer properties, could also be quite toxic when ingested. These days, consumers are provided with different varieties of cucumbers which have sweeter and more palatable skins and definitely not toxic. In fact, the skin of cucumber is a source of dietary fibre and minerals such as potassium, magnesium, and molybdenum.