Your daughter is of the age when she is learning cause and effect of her behavior on her environment. This is NORMAL behavior for a toddler!!!
At 14 months, she is not trying to be disobedient or purposely not listenting to you....she is simply learning how what she does has an effect in the world. Yes, it is exasperating to have to deal with, but it is necessary for her physical and cognitive development. It is part of her maturation process and needs to be dealt with patience and consistent application of natural and logical consequences to her behaviors. That is how she will learn what to do and what not to do....spanking will not teach her that!!!!!
Please STOP spanking a barely over 1 year old! Discipline is meant to TEACH your child...spanking only teaches her that those who are bigger than her can exert their power physically to get control. This is not a lesson you want her to learn! You also don't want to teach her to mind her into submission out of fear that if she doesn't, mommy will hurt her. Spanking is really about parents reacting out of anger and trying to regain control again when feeling helpless in a situation while dealing with their child. People can rationalize it all they want, but really, that is what it comes down to. And if you were spanked and you "turned out alright", it still doesn't mean it was the correct way to deal with you when you were a child!
Those who've suggested you CALMLY reply that she looks like she is finished eating and take the food away are correct. Then, pick her up and have her assist you in picking up the food off the floor, or wherever it ended up. This will teach her the effect that if I throw my food, 1.) I have to pick it up and 2.) I don't have it available to eat. She won't starve to death from missing one meal and she'll be all that more likely to eat the next one offered her.
My intention is not to lecture you as you sound like a very caring and concerned mother! I just cringe everytime I hear parents spanking their children, especially those who are basically still infants. There are MUCH better ways to teach your child lessons. The catch is that, yes, it will take longer to teach without using physical force, but you will be teaching the CORRECT lesson you really want your child to learn; not that bullies get their way through physical might in this world and that you better listen or those around you might hurt you!
Sincerely,
S. M. Wolf, M.A.
Licensed Marriage & Family Therapist
www.SandyMWolf.com
& Mom to an almost 6 year old boy...yes, I went through this very same behavior when he was that age! :-)