Soy Protein – Now in High Quality

If you are a bodybuilder, you’ve probably been scared off from using Soy Protein.  While eating soy as your primary protein source for building muscle is not my recommendation, don’t fall prey to the scare tactics that if you use any:

  • you’ll lower your testosterone
  • grow male breasts
  • build less muscle than a meat eater

You should know the truth about soy protein.

Soy protein is a high-quality protein with a protein digestibility-corrected amino acid score (PDCAAS) of 1.00, which puts it on the same level as meat, eggs and dairy, according to a new study published in the Journal of Agriculture and Food Chemistry.

The PDCAAS Scoring Method

The Food and Agriculture Organization (FAO) and the World Health Organization (WHO) recommend using the protein digestibility-corrected amino acid score (PDCAAS) as a simple and scientific procedure for assessing protein quality.

The Corrected Score

Apparently with the past methods of testing for protein quality, animal based proteins (milk; eggs) score a 1.00.  Meaning, animal based proteins are the best bio-available protein sources with soy (plant based) much lower on the list.  Which is why all bodybuilding sites list the benefits of animal based protein as the best protein sources for bodybuilding.

Good News for Vegan Bodybuilders

According to this study, soy protein has a PDCAAS of 1.00, which means it is a high-quality protein that meets the needs of both children and adults. Eggs, dairy and meat proteins also have a PDCAAS score of 1.00. However, soy protein is the only widely available high-quality plant-based protein that achieves this score.

So What This Means:

Soy is now on par with eggs, dairy and meat proteins meaning that vegan bodybuilder can and will build as much much as you meat eaters!

Marc David – CPT
“The NoBull Muscle Guy”
Author of NoBull Bodybuilding

P.S. - Vegan bodybuilding is possible it just takes a lot more thinking in my opinion to obtain all your protein from a variety of sources.  Although other than Bill Pearl, I cannot think of a current or past champion with mass that was considered a Vegan Bodybuilder. Maybe you can?

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