Hi Lactnetters, A mother who attends my breastfeeding support group called to ask if taking 4000 mg a day of vitamin C for a few days was OK (she has a cold and sounded absolutely miserable). Baby is seven months old and is nursing several times a day and at night due to teething, also eating some solid foods. 4000 mg seemed a lot to me. Does anyone know what effect megadoses would have on the baby, and what amount might be OK. Thanks for any input. Beverley Rae, MSW CSW IBCLC Manhasset, NY