THREE BIGGEST FACTORS AFFECTING YOUR PROTEIN...
There are three (3) prime factors that determine the quality of your protein source:
1) IS IT A COMPLETE PROTEIN?
Incomplete proteins, like those found in most plant-sourced protein, lack the amino acid profiles and reparative material found most often in animal-sourced protein. Most animal-based protein also have auxiliary nutrients that support in further strengthening the tissue of your body.
However; plant-based protein has remarkable phytonutrients and digestive enzymes that can strengthen your immunity.
2) WHAT IS THE ABSORPTION RATE?
Especially if you're consuming protein as a post-training recovery nutrient, you want your protein to absorb into your muscle cells as rapidly as possible. Modern protein supplements sourced from whey, grass-fed beef, and even plants have high-absorption rates above even most animal-based protein.
Animal-based protein, like eggs, chicken, beef, fish, etc., vary in absorption rate; but scale considerably higher compared to plant-based options.
3) WHAT IS THE UTILITY RATE?
Depending upon the amino acid profile that constructs a protein, some proteins are used for the direct rebuilding of muscles and other tissue while others aren't utilized at all.
Ingesting the wrong proteins at the wrong times could lead to less utility of the protein. The effect of this is those un-used proteins are either stored as fat or a tax on your digestive system.