Gluconasturtiin, also known as phenethyl glucosinolate, is a naturally occurring compound found in cruciferous vegetables, like cabbage, Brussels sprouts, broccoli, cauliflower, and horseradish , among others. It is one of the most widely distributed glucosinolates in these vegetables [1].
Gluconasturtiin is considered to be one of the plant compounds responsible for the natural pest-inhibiting properties of cruciferous vegetables. When these plants are damaged, the enzyme myrosinase comes into contact with gluconasturtiin and breaks it down into phenethyl isothiocyanate (PEITC), which is toxic to many insects and fungi [2]. PEITC is also what gives horseradish its pungent flavor.
Some research suggests that gluconasturtiin may have health benefits, but more research is needed. For example, some studies have shown that PEITC, the compound formed when gluconasturtiin is broken down, may have anticancer properties [3, 4]. However, it is important to note that these studies have been done in cells or in animals, and it is not clear whether gluconasturtiin has the same effects in humans.
Overall, gluconasturtiin is a safe and healthy compound that is found in cruciferous vegetables. More research is needed to determine whether it has any health benefits.