To choose a protein powder effectively, one must evaluate its actual concentration (the percentage of protein in the product) and its calorie-to-protein ratio in order to obtain the purest product possible and avoid unnecessary additives, rather than relying solely on the grams per serving displayed on the packaging.

noli's read

To optimize the management of energy intake, evaluating protein concentration (greater than 90% for an isolate versus 70-80% for a concentrate) and the calorie-to-protein ratio is a rational approach validated by food chemistry data. However, asserting that one must absolutely aim for the 'purest protein possible' is an exaggeration in terms of physiology. A meta-analysis by Castro et al. (2019) grouping randomized controlled trials (RCTs) demonstrates that there is no significant difference in muscle development or body composition between a highly purified isolate and a standard concentrate. Another major meta-analysis conducted by Morton et al. (2018) confirms that the determining factor for efficacy remains the total daily protein intake, making small amounts of carbohydrates, lipids, or binding agents have no notable impact on fitness. Finally, the cold cross-flow microfiltration method highlighted is not a novel technological breakthrough, but a standard and robust industrial physical process, widely documented to preserve the quality of whey proteins.

the sources

1. 1Lim MT, Pan BJ, Toh DWK, Sutanto CN, Kim JE 2021
2. 2Tagawa R, Watanabe D, Ito K, et al. 2020
3. 3Rutherfurd SM, Fanning AC, Miller BJ, Moughan PJ 2015