Protein is really used for more than just muscle building - other purposes include creating blood proteins and energy production. Generally, .3 g of protein per kg of body weight per meal is the cap for the body to build muscle with. This will break down to an average of 20 to 30 g a meal. Protein in older adults, though, tends not to synthesize into muscle as easy so the per-meal quota of protein generally goes up to 35 to 40 g. Also, muscles will be "full" and not uptake new amino acids [building blocks of protein] for two to three hours after a protein meal and thus protein meals are best spaced three to five hours apart while a person is awake(1).
Lesser-quality proteins as soy lack certain amino acids and thus don't synthesize into muscle so well. Whey is an example of a higher-quality protein source [I use a very high-quality form in meal replacements](2).
Statin drugs have been shown to hinder cardiomyocyte(2) (heart muscle(3)) protein synthesis and cause death in their cells(2).
Sources:
1. "How Much Protein Goes to Your Muscles?" Isagenix Health, Isagenix Worldwide, Inc., 14 March 2018, https://www.isagenixhealth.net/how-much-protein-goes-to-your-muscles/.
2. Rabkin, Simon W. et al. "Reduction of protein synthesis and statin-induced cardiomyocyte cell death." Cardiovasc Toxicol. 2007 ;7(1):1-9. PMID: 17646677. GreenMedInfo, https://www.greenmedinfo.com/article/statin-induced-inhibition-protein-synthesis-underlying-mechanism-statin-induce. Abstract.
3. Wikipedia contributors. "Cardiac muscle cell." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 25 May. 2019. Web. 3 Jul. 2019.
Lesser-quality proteins as soy lack certain amino acids and thus don't synthesize into muscle so well. Whey is an example of a higher-quality protein source [I use a very high-quality form in meal replacements](2).
Statin drugs have been shown to hinder cardiomyocyte(2) (heart muscle(3)) protein synthesis and cause death in their cells(2).
Sources:
1. "How Much Protein Goes to Your Muscles?" Isagenix Health, Isagenix Worldwide, Inc., 14 March 2018, https://www.isagenixhealth.net/how-much-protein-goes-to-your-muscles/.
2. Rabkin, Simon W. et al. "Reduction of protein synthesis and statin-induced cardiomyocyte cell death." Cardiovasc Toxicol. 2007 ;7(1):1-9. PMID: 17646677. GreenMedInfo, https://www.greenmedinfo.com/article/statin-induced-inhibition-protein-synthesis-underlying-mechanism-statin-induce. Abstract.
3. Wikipedia contributors. "Cardiac muscle cell." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 25 May. 2019. Web. 3 Jul. 2019.
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