There are quite a few causes behind amenorrhea, from hypothalamus issues to problems with the pituitary gland, but high levels of toxins can also cause the menstrual cycle to slow or even stop. Adding saffron to your diet, however, is a surefire way to cleanse the system and increase the detoxifiying process. For someone suffering from amenorrhea, if the condition is caused by toxicity in the body, then powdered saffron can be the fastest way to get your cycle back to normal. Saffron is also a stimulant for the menstrual cycle, so it works in two different ways to alleviate this condition.