Effervescent Creatine: Facts and Fallacies -
by Dr. Brian Sakurada and Joseph Carnazzo, R.Ph.
Effervescence
is merely a descriptive word which means “formation of bubbles
of gas rising to the surface of a liquid” (Taber’s Cyclopedic
Medical Dictionary, 12th Edition). In the case of effervescent creatine,
this gas is typically carbon dioxide, known as CO2. However, when
used in reference to a delivery system, the term takes on an expanded
meaning. Unfortunately no company, with the exception of FSI Nutrition,
has applied a pharmaceutical approach to the effervescent delivery
of creatine. Rather than endure the expense and rigors of developing
a product which would make use of the advances effervescence provides,
other companies have tried to feed off the marketing craze that
follows the introduction of a new product by marketing a product
with the same visual effect but not the same chemical effect. The
confusion thus created works to the benefit of the knock-off products.
Before we move forward with the explanation, some history may clarify
the issue.
Creatine has long been a staple product in the sports-nutrition
market because of its potency and quick response.However, a large
percentage of creatine consumers were unable to tolerate the effect
creatine had upon the gut which often caused cramping, diarrhea
and in performance athletes dehydration and muscular cramping. This
problem forced many sports teams to ban the use of creatine, as
a lot of players were experiencing symptoms that led to poor performance
or even injury.
These effects are largely due to the poor solubility of creatine.
Creatine does not dissolve easily in water. As it settles in the
glass, so does it settle in the stomach and intestines, causing
an osmotic (water-pulling) laxative-like effect in the intestines.
Manufacturers tried to change the physical nature of the monohydrate
salt of creatine by micronizing (creating smaller crystals) or changing
the medium it was dispensed in, using aloe or glycerol. Micronizing
creatine monohydrate merely slows the rate at which it settles.
This is why the water stays cloudy. The denser, gel-like solutions
suspended the creatine in a thicker liquid, but neither method addresses
the initial problem. People generally assume that creatine must
be free from the monohydrate group to be absorbed. This process
occurs at different rates among various individuals and, to a different
degree, even in the same person. We believe it takes place in the
acidic environment of the stomach and is dependent upon the amount
of acid present, amount of creatine in solution, amount of time
in the presence of the acid, and possibly other factors. The differences
at this stage may account for the wide degree of variability in
terms of user response. Once the creatine passes into the intestines,
very little creatine monohydrate is likely to be split into free
creatine, as the environment of the intestines is relatively basic
(the opposite of acidic). Thus, the only creatine that would be
absorbed is the creatine that was in solution in the stomach long
enough to be split from the monohydrate group.
Through the use of several proprietary (meaning protected information)
techniques, the creatine in FSI effervescent creatine is rapidly
and almost completely freed. One can easily demonstrate this fact
by placing a glass with 5 grams of creatine monohydrate next to
a glass containing FSI effervescent creatine. Rather than having
a half-inch of creatine sitting at the bottom of the glass, you
have a clear solution with little or no residue. This step alleviates
the adverse effects noted with creatine and also seems to provide
for universal response. The findings in the pilot studies seem to
suggest that the splitting of the creatine from the monohydrate
group and placing the creatine into solution was the main barrier
to response for the group known as “nonresponders”.
This was the purpose of developing an effervescent delivery system
for creatine. By avoiding the cramping, diarrhea and water loss
that occurs with powder creatine monohydrate, athletic teams can
now dispense creatine to their athletes with a reasonable degree
of certainty that they will see performance enhancement and avoid
any complications which may impair performance.
The primary purpose of the effervescent delivery is to supply creatine
in such a way as to provide performance benefits without any side
effects that would impair performance. This is done only by following
the exact steps in formulation, manufacturing and packaging that
are listed in the FSI patent (U.S. Pat. No. 5,925,378) which are,
again, proprietary. To emphasize the difference between FSI licensed
products and the knock-offs, we list below some of the variances
that will alter the chemical nature of the product, decreasing its
effectiveness and quality. Product formulation does not provide
free creatine as opposed to creatine monohydrate. A significant
amount of sediment will clearly demonstrate this deficiency.
Product does not provide creatine as a "zwitterion" which
is electrically neutral. This is essential for complete absorption.
Product is not manufactured in an FDA-Approved manufacturing facility.
Unfortunately, dietary supplements are not required by law to be
manufactured in such a facility, and thus many companies fail to
do so.
Product is not packaged properly. Effervescent products must be
protected from vapor and extremes in heat. They require a heavier-grade
foil than what is used for meal-replacement packs. It absolutely
must not be blended and provided in a tub or bucket. This type of
packaging has not led to many problems during the low-humidity,
low-temperature months, but will as temperatures and humidity become
higher with the changing seasons.
Product is not dose metered. Effervescence requires an exact ratio
of ingredients. This ratio ensures that creatine dosing is exact.
Excess sugar will interfere with the effervescent reaction. Experiments
have shown that a supraphysiologic insulin level is required to
substantially increase the amount of creatine driven into resting
muscle in a controlled setting (Greenhauf, 1998). This amount of
sugar will interfere with the effervescent reaction and also affects
the amount of creatine that may get into solution, as the sugar
also will be dissolved. Additionally, the increase in blood sugar
and insulin is associated with weight gain, which is undesirable
to the performance athlete, as well as many physique athletes. Through
the multiple formulation attempts used in the development phase
of creating effervescent creatine, FSI found that 18 grams of dextrose
was the maximum that could be added without altering the effect
on creatine delivery or increasing the water-volume requirement
beyond what would be acceptable to an athlete.
FSI is not only basing the formulation and claims of effervescent
creatine on previously published and in-house studies, but is also
funding independent studies through various universities using the
exact formulation found in FSI effervescent creatine. Using existing
data is a crucial step in product development. In order to make
any true claims on a product, a manufacturer must perform and publish
original research using exact formulations. Publication is a time-intensive
process, so many claims may predate publication in refereed peer-reviewed
journals. The consumer and the technical writers of the industry
publications have the responsibility of establishing the validity
of the claims prior to publication.
As to the assimilation of creatine (uptake by the muscle), studies
are currently being performed at a major university. We have indirect
evidence of muscular phosphocreatine stores in studies that measure
"anaerobic work capacity," known as AWC. Pilot studies
using FSI effervescent creatine demonstrated that the AWC is significantly
enhanced compared to powder creatine monohydrate and a commercially
available creatine monohydrate/carbohydrate blend. The study compares
the degree of improvement of AWC, not weight gain, one-rep maximum
lift, or any other measure. The AWC is a more appropriate measure
of the effect of creatine which is involved in short-term exercise.
Weight gain, listed as a side effect, is a grossly inappropriate
measure of creatine effectiveness. One-rep max lifts depends on
training and will show a higher percentage increase in untrained
subjects. Additional factors can obscure the results of one-rep
max measures. The performance benefit of effervescent creatine is
the increased ability to do high-intensity, short-term work. This
is the same benefit seen with creatine monohydrate, just to a significantly
greater degree. The stimulus of increased training leads to true
muscle hypertrophy, not just water swelling or "volumization."
The improvement in AWC shown in the pilot study performed at Creighton
University by Dr. Jeff Stout was 195 percent over a creatine monohydrate
and 84 percent over a creatine monohydrate/carbohydrate blend.
Certain companies have soiled the reputation of effervescent creatine
by making grandiose claims and adding products of questionable value.
FSI makes no claims other than the results shown in objective laboratory
measures.
FSI strongly advises the consumers to educate himself/herself regarding
the products and companies from which they are purchasing performance
and nutritional supplement.
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