No drop for me with weed. Nutrients and hydration are key. Your breasts will naturally start to feel not as full at some point as well, as long as baby is happy I wouldn't worry.
@Selena do you use tobacco to smoke weed?
Nooo sorry, I wasn't sure if you were talking about weed or tobacco
I have never felt a drop in supply and I’ve smoked thru all 3 of my breastfeeding journeys the first going over 2 years the second over a year and now I’m 9 months in with the third
I smoke backwood blunts for the most part
My suggestion is keep pumping, or latching to keep the supply up. I also drink coconut water, oat milk, and body armor on a daily basis. I smoke daily to add and answering your question it does decrease and for that reason it’s best to keep yourself hydrated