[Dynsei]

You can use fenugreek instead, since both are progesteronic. It's actually asparagus root that should be used, but grocery store asparagus may be fine too. But if you don't use a progesteronic herb at the start of luteal, there probably won't be big results.

RDI is the % of nutrition on food labels, it is the minimum. DRI is daily recommended Intake, you can look it up online.