Breastmilk volume varies widely, but for fully breastfed babies between 5 weeks and 6 months of age, it is often 650 ml to 1000 ml or more per day. The nutrients present in your milk come from the reserves in your body and from the food you eat.
(The following article is a summary of information found in the Academy of Breastfeeding Medicine Clinical Protocol #36: The Mastitis Spectrum, Revised 2022)
Mastitis is the name given to a range of conditions that all involve inflammation in the breast. You may never experience mastitis or you may find that you need to take steps to prevent it from recurring.