Natural Sources of Protein
There are two types of protein:
Complete proteins (which consist of all of the essential amino acids)
Incomplete proteins (which just have some of the essential amino acids)
Complete proteins are normally present in animal sources, quinoa, chia, buckwheat, hemp, spirulina, and soy) and incomplete proteins are mainly present in plant sources.
Having enough protein to build muscle is usually considered easier if you consume animal sources, but you can fulfill your protein requirements as a vegetarian or vegan too. Just make sure that you’re consuming enough calories and having a variety of foods all over the day. Make it a point to add legumes, nuts, whole grains, seeds, and soy products in your diet, and also eggs and dairy if you’re vegetarian.