My 5 year old is on medication that requires her to drink a lot of fluid for it to work. She will only drink apple juice from concentrate. I used to dilute it 1 part juice to 10 parts water as recommended for babies but she is refusing to drink it now saying it tastes like water after I stupidly started putting cartons of apple juice in her packed lunch. I can't seem to find any info on how much juice should be diluted for an older child, does anyone know?