Assertion: fenugreek's seed | /r/MadeOf | the alkaloid hydroxyisoleucine
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Source sentences:
text: The seeds also contain the saponin fenugrin B. Several coumarin compounds have been identified in fenugreek seeds, as well as a number of alkaloids (eg, trigonelline, gentianine, carpaine), including the alkaloid hydroxyisoleucine, which is considered to stimulate insulin secretion.