The amount of protein per serving of a particular product is easily identified in the Supplement Facts area. You will see it listed with other ingredients as Protein – 27 g for example. What is the percentage of pure protein in each serving however? When protein is the primary ingredient of interest to you, it’s best to know how to calculate the percentage of protein per serving. As a general guideline that doesn’t involve digging up those old mathematical skills, use the following guideline:
To calculate the percentage of protein per serving, divide the number of grams of protein in a serving by the serving size and then multiply by 100. For example:
(27 g protein per serving / Serving size 30 g) x 100 = 90% protein
(22 g protein per serving / Serving size 32 g) x 100 = almost 70% protein
Use this same formula for any protein containing supplement to calculate the protein percentage in each serving. This way you know how much protein you are getting for every serving size you mix and consume. It is also a double check to keep suppliers honest as Whey Protein Isolate for example, should always be 90% or greater. If not, you are paying for filler or other ingredients that you aren’t necessarily interested in.
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