The Problem with Liquid Collagen Protein
Yes, this came in an email from Unjury Protein so consider the source. But it does repeat what so many on this forum have said repeatedly about any collagen protein.
The issue -- and it is a serious issue -- with collagen protein is the quality of the protein -- how well your body can use the protein. So first, what is collagen protein? Collagen protein typically comes from the skin of animals, e.g. cows, or from other residual connective tissue that hasn’t gone to other markets. It is well understood that collagen protein alone is an incomplete protein. It is completely lacking in trypotophan, an essential amino acid. As a result, it has a protein quality score (PDCAAS) of zero. Protein quality scores range from 0 to 100. The ideal is 100, and the whey protein isolate in UNJURY has a PDCAAS score of 100. The American Society of Metabolic and Bariatric Surgeons nutrition white paper states: With collagen protein, even when the manufacturer adds ingredients to try to improve the PDCAAS score, it is common for the PDCAAS score to remain low. "Caution should be used when recommending any type of collagen- based protein supplement."
The issue -- and it is a serious issue -- with collagen protein is the quality of the protein -- how well your body can use the protein. So first, what is collagen protein? Collagen protein typically comes from the skin of animals, e.g. cows, or from other residual connective tissue that hasn’t gone to other markets. It is well understood that collagen protein alone is an incomplete protein. It is completely lacking in trypotophan, an essential amino acid. As a result, it has a protein quality score (PDCAAS) of zero. Protein quality scores range from 0 to 100. The ideal is 100, and the whey protein isolate in UNJURY has a PDCAAS score of 100. The American Society of Metabolic and Bariatric Surgeons nutrition white paper states: With collagen protein, even when the manufacturer adds ingredients to try to improve the PDCAAS score, it is common for the PDCAAS score to remain low. "Caution should be used when recommending any type of collagen- based protein supplement."
5'5" Age 63 HW 212 SW 200 Currently 8 pounds below goal
Jacque 
I sent a reply to the original Unjury email asking about protein shots being collagen based. This is the response I got. And remember, this is from Unjury so consider the source. But again, if anything it confirms what others on this forum have said about protein shots and collagen.
The protein “shots" are generally collagen-based…most add some casein and/or whey, but the last time we checked, a couple years ago,
their PDCAAS score was still in the 30s, if my recollection is correct.
I think if you call and ask them, they will tell you. (I anyone says “100", let me know and we will send it off to be analyzed at Covance labs, an independent lab)
If anyone has questions, they can email [email protected]
Jerome
[email protected]
www.UNJURY.com and www.OPURITY.com
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5'5" Age 63 HW 212 SW 200 Currently 8 pounds below goal
Jacque
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