This type of whey protein is usually 80% protein. Protein Equivalents. There are four main types of proteins. The rest of the product consists of lactose (4-8%), fat, minerals and moisture. Most individuals need 5 to 7 ounces of protein every day. Here are 7 of the best types of protein powder. The other three types of proteins are fibrous, membrane and disordered proteins. The most commonly known are the globular proteins. If you don’t eat animal products, it’s important to eat many different types of plant proteins to get enough essential amino acids. Types of proteins. Share on Pinterest. Globular proteins. There are around twenty amino acid types that can be located in the human body and around ten of these are essential. A globular protein is any protein that takes a spherical shape in its tertiary structure. Whey Protein Isolate (WPI) WPI is the most concentrated form of whey protein available as an ingredient, and it contains over 90% protein. We include products we think are useful for our readers. These are the proteins that an animal can produce using their own nitrogen based components. Part of this misunderstanding is that protein requirements for an athlete may range between 1.2 to 1.7 g/kg per day which is greater than the 0.8 g/kg per day for the non-athlete. If you buy through links on this page, we may earn a … One ounce of protein can be obtained through 1 ounce of meat, poultry or seafood. The proteins that an animal can produce internally are referred to as non-essential proteins.