When caffeine enters your bloodstream, a small amount can be passed along to your baby through breast milk. Most babies aren't affected by.
Up to mg of caffeine, or about cups of coffee, is safe for breastfeeding mothers to consume (Lauwers & Swisher, ). According to the Mayo Clinic.
Here's what you need to know about caffeine while breastfeeding. total amount of caffeine you consume passes through to your breast milk.