Question:
A Message from UNJURY
This is a message about vendor postings and scientific support. Some vendors participate in the Q&As using their personal name without clearly stating in the posting that they are vendors. While some of you are aware of the affiliation, others are not. We believe vendors should clearly identify themselves in each posting -- so everyone knows. Recently a vendor made statements about protein supplements which are untrue, and which have no scientific support. Specifically, the posting discussed whey protein ISOLATE vs "blends" -- blends presumably containing both whey protein CONCENTRATE and whey protein ISOLATE. Readers interested in the Food & Drug Administration definitions of each can find them at this FDA link http://www.cfsan.fda.gov/%7Erdb/opa-g037.html . It was stated that "blends" are better than isolate-only products. This is not true, and has no scientific or clinical support. In fact, the opposite is true. All whey ISOLATE, without any whey concentrate, is better. The issue is LACTOSE--milk sugar. Some whey protein concentrate is composed of 25% protein and as much as 50% lactose. While some concentrate has better proportions of protein and lactose, generally you cannot tell from the label. And concentrate always has less protein, and more lactose, than isolate. In contrast, whey isolate must be at least 90% protein, and has negligible lactose. We know of no medical or clinical reason to ever want to replace any amount of protein with lactose. Thus, all-isolate products are better. You should also know that whey protein concentrate is much less expensive than whey protein isolate. When you are buying a protein product that has whey protein concentrate as its primary source of protein, even if it contains a little whey protein isolate blended in, it will have more lactose than an all-isolate product. The product might even contain more lactose than protein. So it's a good idea to read labels carefully, in a questioning frame of mind. You can find reliable information about the typical composition of whey protein isolate and whey protein concentrate at a site supported by three national dairy associations: http://www.doitwithdairy.com/infolib/ingspecsheet/ingspecwhey.htm UNJURY(TM) uses only whey protein isolate. Thank you very much. Martha M Krachenfels MS RD President UNJURY Protein Supplements [email protected] — Martha K. (posted on November 11, 2003)
November 11, 2003
Hi Martha! Thank you for helping me to distinguish between some of the
different products out there! I am pre-op, doing a lot of research, so the
information is very much appreciated. Blessed Be-Sherry
— SherryWeber
November 11, 2003
I'm glad that this clarification is posted. I looked on the Designer Whey
protein powder that I have and found both concentrate and isolate. With
all the lactose, this may explain why I am having lactose intolerance
systems after drinking them! Thank you tremendously, Martha!
— got_pigs
November 11, 2003
I received my first order of unflavored Unjury and started using it last
week. I called this week and starting next month I am on autoship. I have
only tried mixing it with orange juice. Thank you for the product.
Sapala-Wood Micropouch 12/12/02 - 213/130/125.
— Jazzy
November 14, 2003
<<Readers interested in the Food & Drug Administration
definitions of each can find them at this FDA link
http://www.cfsan.fda.gov/%7Erdb/opa-g037.html .>>
Well, Martha, your link compares "Whey Protein Isolates" and
"Whey Mineral Concentrates". I dispute your assumption that Whey
Protein Concentrate is the same animal as Whey Mineral COncentrate. There
is no indication that this is the case in the link you referred to.
I'm sure that SOME Whey Protein Concentrates contain more lactose than
others do. This would be why some of them make me gassy, as I am
*severely* lactose intolerant. But I believe that your statements about
Whey Protein Concentrates are wildly inflated. The shakes I use, from
VitaLady.com, are very low in lactose, and in my experience, provide a
higher level of satiety, which also lasts longer. I use both concentrates
and isolate, the concentrates in blends. I am 8 months out from a very
distal RnY, and consume a minimum of 120 grams of protein from supplements
each day. Most days, I use about 180 gms. My doc *mandates* 120 grams of
supplements per/day, so this is my minimum.
<p>
And I find your post offensive, as it appears to be a pointed attack on one
woman who provides a valuable service here. Yes, she posts under her
personal name, rather than a vendor name. Because SHE IS A LONG-TERM
POST-OP, who DOES NOT, and HAS NOT, NOR WILL SHE *EVER* make any attempt to
sell product here. She posts here from her vast and varied experience as
*A PATIENT* and advocate for others. She *never* pushes specific products,
she never says "I sell that", nor does she send people to her
website. And her service, and profile, and list presence started *before*
her business.
<p>
On the other hand, your presence here is what, as a vendor? I have to
assume that you have no experience as a post-op WLS patient? And I know
that you're here pushing a specific product, which you sell. So you attack
a teacher, who does *not* sell anything here, in order to *sell your
product*? Nice. Very nice. <NOT! /sarcasm>
<p>
So, ladies and gentlemen, patients, do some research. Don't take
*anyone's* word as gospel. Try products, compare prices, and talk to other
people. And especially, don't take as gospel the word of anyone who wants
to sell you their stuff.
— RWH G.
November 14, 2003
RWH I find YOUR post offensive.
— Cera H.
November 14, 2003
I think that most of the people who sell things have been doing so for
quite a while & most are long-term post-ops.
I think it is up to each individual to do all the research they can on the
things they buy. Most of these people are trying to help out those who
don't know as much.
— Saxbyd
November 14, 2003
Cera -
<p>
Care to share why you find my post so offensive? I gave my reasons for my
offense at Martha's post. I felt it was a pointed attack on someone who
gives a *lot* to this community. Who looks on these people as family.
<p>
And I believe the post, which said the other person was untruthful or
wrong, was in error. Comparing 2 different products (whey protein
concentrate v. whey mineral concentrate).
<p>
Or are you just offended by disagreement?
— RWH G.
November 14, 2003
— Martha K.
November 15, 2003
Martha - The link *you* provided <<Readers interested in the Food
& Drug Administration definitions of each can find them at this FDA
link http://www.cfsan.fda.gov/%7Erdb/opa-g037.html .>> is a
definition/comparison of whey protein isolate and whey mineral concentrate.
Pleas go back and read it. I can only think you either misread it, or
confused the 2 products.
<p>
I know you identified yourself as a vendor - I said so, too. But my point
was that you are not a patient, and therefore have no experience as a
postie.
<p>
Life is different as "gastric cripple" (a WL surgeon's definition
of posties), and you really *can't* know how things work for us, until you
*are* us.
<p>
I know that one of the reasons *I* wouldn't do an all isolate protein as my
only protein is that isolates need fat to be absorbed. (All protein needs
fat to be absorbed.) BUt my understanding is that isolates don't contain
any fat, and since I absorb *so little* fat, I'm always short on fats. THe
blends, however, contain *some* fat.
<p>
And I just went and checked my protein jugs. The 2 WPI's I use
occasionally (Nectar by Syntrax and Weider's WPI) contain 0 fat. THe
blends contain around 3.5 grams fat per 30 gram dose.
— RWH G.
November 16, 2003
The primary reason for our original post was to
discuss the advantages of whey protein isolate over
whey protein concentrate.
This summarizes:
------------------------------------------
Whey PROTEIN Isolate has more protein and negligible lactose.
Whey PROTEIN Concentrate has less protein and more lactose,
sometimes a lot more lactose and a lot less protein.
Whey PROTEIN Isolate is better for the reasons above.
Whey PROTEIN Concentrate is cheaper for the reasons above.
------------------------------------------
We include the FDA and dairy association links again here:
http://www.cfsan.fda.gov/%7Erdb/opa-g037.html
http://www.doitwithdairy.com/infolib/ingspecsheet/ingspecwhey.htm
The FDA link does discus the other ingredients, but more
to the point, the FDA link does state
Paragraph 5:
"...whey protein concentrate...contains not less than 25 per cent
protein"
(In practice, in the industry, whey protein concentrates do not exceed 80%
protein.)
Paragraph 6:
"...whey protein isolate...contains not less than 90 per cent
protein"
------------------------------------------
Thus the facts, strongly supported by those links, are:
Whey Protein Concentrate: Lower In Protein, Higher In Lactose
Whey Protein Isolate: Higher In Protein, Negligible Lactose
Martha M Krachenfels MS RD
President
UNJURY Protein Supplements
[email protected]
— Martha K.
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