1 tablespoon isn't much.
Whey protein has many components that benefits the intestinal flora (lactoferrin, glycomacropeptides, immunoglobulins). Colostrum is a much more concentrated source of lactoferrin and immunoglobulins, but is also much more expensive. There are studies showing it raises our levels of glutathione, a very important antioxidant and detoxifying agent. It is also a good source of glutamine (~6%) important for the small intestines, it is also said to help maintain the alkaline/acid balance.
I believe the best (among those that have a "is a whey isolate cold-processed, as it contain the good things that can get filtered out in other isolates. Whey protein concentrates are harder to digest.
I also recommend taking protein-digesting enzymes with it.
I take 58g of whey isolate, 2g of taurine and 15g of glutamine every day.