I recommend limiting your caffeine intake to no more than 500 mg daily in the early weeks and months of breastfeeding. A newborn may be more sensitive to moderate caffeine consumption than an older infant. If your infant is excessively fussy or wakeful and caffeine is part of your daily diet, consider reducing your intake for a few days to see if there is improvement in your baby’s demeanor. If you do notice a change, you may want to eliminate caffeine from your diet or moderately reduce your intake for a few months before reintroducing it. As everyone reacts differently to caffeine, consult your physician to discuss recommendations specific to you and your baby.