Question: how long does it take for caffeine to leave your system breastfeeding?
Answer: This is because it can take a newborn baby a long time (ie half-life of 50–100 hours) to process caffeine. By 3–4 months, however, it takes a baby only about 3–7 hours. Authorities recommend that pregnant or breastfeeding mothers should not exceed 200 mg caffeine per day.