I'm sure a small bit of food would not hurt. When I was young, my Mom used to put my pills in a teaspoon of jelly, and that make it go down very nicely.
A lot of parents find that putting either the capsule or the contents in spoonful of yogurt, applesauce or maple syrup will help the child take it. That small amount of food taken with the HUMAWORM won't make any difference. Thank you and good luck!