A.A.
When he throws food, mealtime is over. Its as simple as that. This may seem harsh, but he won't starve himself. He will get the idea real soon that throwing food is not acceptable. Tell him "No Throwing food, dinner is over now". Take him out of his chair and start another activity. Do this a couple times and he will get the picture. Yes it is normal for 16 month olds to test their limits, but he is also old enough to know that we don't throw our food. Teach him table manners now, you won't regret it later.