I was told to drink half my body weight in oz. So if you weigh 180 lbs drink 90 oz of water a day (not sure how accurate but you get it). Also pumping in between feedings stimulates milk production. I drink mothers milk tea, you can find it at walmart and grocery stores. There are foods that help production like oatmeal.and leafy greens. Check out the website ************. it's a great bf resourse