Since we first imagined our Complete Protein product at RNWY, we knew we wanted to offer something more than the other protein supplements out there on grocery store shelves. Diets are evolving, and animal-derived whey protein isn’t for everyone. Not to mention the dreaded dairy factor – whey can cause gas, bloating, and discomfort. But then pea protein, the usual plant-based alternative, doesn’t quite pack the punch of its whey counterparts.
So what’s the solution?
After many, many hours and days in the lab, and research meetings with people much cleverer than us, we stumbled across YESTEIN®. It’s something called fermented nutritional yeast protein, and in clinical trials, it’s been shown to be almost as effective as whey in building muscle and supporting recovery, without the negative effects of dairy.
What is fermented nutritional yeast protein?
We’ll admit, for an athlete’s protein, it starts out in an unexpected form. Fermented nutritional yeast protein starts its life as baker’s yeast, which itself is a by-product of the beer industry. Usually, this goes to waste. But with YESTEIN®, it’s repurposed into something useful.
What does the evidence tell us about YESTEIN®?
We wouldn’t be using something in our products if it hasn’t been rigorously tested and its effects studied in controlled conditions. Fortunately, YESTEIN® has undergone a range of scientific tests, and been a part of studies that show the following:
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YESTEIN® yeast protein is as effective as whey protein in improving lean mass and strength, especially in those with low dietary protein
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YESTEIN® is a slow digesting protein, good for supporting muscular recovery and reducing muscle fatigue/loss.
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YESTEIN® increases satiety and provides a continuous & steady supply of amino acids.
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YESTEIN® is rich in complete Essential Amino Acids like lysine, isoleucine, leucine, and valine
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YESTEIN® is high in branched chain amino acids, which when broken down, are converted into glucose. This helps prevent muscle loss and promotes muscle recovery after exercise
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YESTEIN® increases the digestion and absorption rate of proteins when used as a complimentary protein in blends
Is YESTEIN® more sustainable than whey or pea protein?
In short, yes. Its production cycles are short, highly efficient, and not influenced by climate or environment, which makes the supply more reliable. It also releases fewer carbon emissions, and uses less water and land to produce when compared with beef, pea, and soy protein sources.
For peace of mind, it’s also:
Non-GMO Project-Verified: That means it’s free of genetically-engineered or modified organisms.
Kosher-certified: It contains no dairy or meat or derivatives, and isn’t made with equipment that is used to make meat products.
UpCycled-certified: The products reduce food waste by promoting the upcycled food economy. It uses ingredients that have full nutritional value and are safe, but would otherwise have gone to waste.
Why do we use YESTEIN® in RNWY Complete Protein?
Isn’t that clear already? It’s good for you, good for the planet, and can be just as beneficial as whey when it comes to muscle growth, without some of the downsides.
If we’ve caught your attention and you feel like diving a little deeper into the science, head over to the YESTEIN® website.
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