During illness, increase fluid intake by more frequent breastfeeding, and patiently encourage children to eat favorite foods. (breastcrawl.org)
While I do recognize that gut health may be an issue, often it is more associated with conversion from a high carbohydrate intake to a low carbohydrate intake without increasing your fluid intake. (blog.undoctored.com)
While breast milk production in this study increased with increased fluid intake and decreased with decreased intake, neither change was statistically significant. (healthyeating.sfgate.com)