Is Collagen Safe During Pregnancy and Breastfeeding? Hunter & Gather Breastfeeding mothers have increased nutritional needs to cover their baby's needs as well as their own. A general rule for breastfeeding mothers is to take fresh, unprocessed foods. However, it can be COMING SOON! Our article about the safety of collagen usage while breastfeeding debuts later this week. Collagen, used in cosmetic treatments, is often taken as an oral supplement for the reduction of Collagen While Breastfeeding: All You Need to Know Is it safe to take Collagen while breastfeeding?