In one study, 100 mg of caffeine per day helped people burn an extra 79 — 150 calories over a 24 - hour period (18, 19). (healthline.com)
Most professionals agree that a nursing mom should have no more than 300 mg of caffeine per day over all combined caffeine sources. (abckidsinc.com)
The upper limit for pregnant or breastfeeding moms is often said to be 300 mg of caffeine per day (around 2 cups of coffee, depending on the brew). (momtricks.com)