It says Maca may not have any toxic effects unless you have taken an overdose. There are no such side effected reported with the use of maca. Please remember that any supplement requires time to show results and taking an excessive dosage does not mean that it will work faster or better. Furthermore, you should keep in mind that taking any natural supplement or product in excess might be harmful for your health, and this holds true for minerals and vitamins too.
Maca is highly beneficial for fertility, and studies have proved that it is good for both men and women. However, if you are considering taking maca to alleviate your fertility issues then we would recommend that you consult with your doctor so that he can guide you on the best way to take maca so that it influences your overall health and boosts your fertility without you indulging in an excess dose due to lack of enough information.