Food is a common choking hazard. Many children do not chew their food well so they try to swallow it whole. Foods that are the most dangerous are round and hard. If your child is 4 years of age or younger either take extra safety measures or don’t feed the following foods to your children at all: 1  Hot dogs. 2  Nuts and seeds. 3  Chunks of meat or cheese.  Whole 1  grapes. Hard, gooey, or sticky candy. 2  Popcorn. Chunks of peanut butter.  Raw 1  vegetables. 2  Raisins. Chewing  gum. Marshmallows.