Hello doctor. Doctor, I am currently breastfeeding (the baby is 18 months old, eats rice, and only breastfeeds before going to bed at night). Can I take Collagen and Vitamin C as functional foods while breastfeeding? For example, taking Collagen, Adiva's skin-beautifying support water, Neuglow C effervescent tablets, or products that supplement Vitamin C and Collagen as functional foods. Does supplementing Collagen while breastfeeding as well as Vitamin C affect the milk supply that the baby drinks? Does it affect the baby's development or digestive system?