There are slight differences in the meanings of these terms, but they are often used interchangeably. 1  Independent Variable: It implies causality: the independent variable affects the dependent variable. 2  Used predominantly in ANOVA, but often in regression as well. 3  It can be either continuous or categorical.
Protein Quality. Collagen is not a complete protein because it is lacking in the amino acid tryptophan. A Protein Digestibility Corrected Amino Acid Score (PDCAA) of a complete protein is 1.0.ollagen is a protein found in the muscle and connective tissue of animals. Hydrolyzed collagen protein supplements are typically made from the bones and skin of cows, horses or pigs.
Collagen Peptides â (Blue lid) These peptides are derived from gelatin, and contain the same amino acids as gelatin. The main difference is use â the peptides dissolve instantly in hot or cold liquids without gelling for an easy nutrition boost.Collagen Protein â (Green lid) Think gelatin.ollagen peptides are essentially pure protein: two scoops of Vital Proteins collagen provides 18 grams of protein! Interestingly, studies show that collagen peptides consumed at breakfast are 40% more satiating than other proteins (such as whey or soy) and correlate to a 20% reduction of food intake at lunch.