Is it true that drinking tea after eating will absolve the proteins in the food you have just consumed?

I was told by a Food Nutritionist 6 years ago that drinking a cup of black tea immediately after eating food will absolve the proteins in the food. This process happens because of a chemical known as tanin in the tea. It will attack the protein and destroy the molecules before the body can break them down into amino acids for utilizing in the body. I can't find any conclusive evidence online. Can anyone verify if this is true or just another myth?