I’ve been taking fenugreek and brewers east since my little ones birth and pumping for 3 months. Don’t know if it is the supplements or just time but I went from barely making enough for 2-3 feeds to oversupply and full freezer of milk.
Worked for me 100%, I took it 3x a day when I wanted to increase supply
It's generally not recommended as it can go one of 2 ways, either increasing or decreasing your supply (or not really having an effect I guess 😅) That being said I use it when I make a curry a few times a month and never really noticed any difference!