Matcha is generally okay habang nagbbreastfeed, pero kailangan mong alam na may caffeine siya, one sachet a day should be fine for most moms, pero some of us try to limit it just to be safe kasi baka ma-overstimulate ang baby. I'd still suggest checking with your OB or pediatrician lang to be sure, especially if baby mo ay sensitive or may sleep issues, kasi bawat baby different ang reaction sa caffeine passed through breastmilk!