"Children can become picky eaters for a number of reasons. Some children are naturally more sensitive to taste, smell, and texture. Other children develop picky eating habits by modeling their parents' fussy eating habits. Picky eating habits are more likely to develop when parents punish, bribe, or reward their children's eating behaviors. The goal for feeding a picky eater should be to try new foods and to keep food from starting a battle."
"Picky Eaters" by Benioff Children's Hospital, UCSF
Children's nutrition: 10 Tips for Picky Eaters - Mayo Clinic article
What Makes Kids Picky Eaters and What May Help Them Get Over It: Tips you can use to help kids be more comfortable with food
Picky Eaters: Article by Benioff Children's Hospital, University of California, San Francisco