Pro-Stat(R) Shown to Be Effective in Maintaining Healthy Nitrogen Balance and Lean Body Mass in Elderly

ENGLEWOOD, NJ, Jun 01 (MARKET WIRE) --
A study published in the June issue of the Journal of the American
Dietetic Association (JADA) shows that Pro-Stat(R) was effective in
maintaining nitrogen balance among the elderly and may be superior in
maintaining lean body mass. These findings are of significant importance
to the rapidly growing geriatric population, many of whose diets are
inadequate in protein because of poor appetite, digestion and other
dietary issues. Based on these findings, Pro-Stat, a concentrated,
fortified liquid protein distributed by Medical Nutrition USA, Inc.
(NASDAQ: MDNU), provides a significant opportunity to prevent negative
nitrogen balance, preserve lean body mass and minimize related morbidity
and mortality in this vulnerable population.

The study, "Effects of Whey and Fortified Collagen Hydrolysate Protein
Supplements on Nitrogen Balance and Body Composition in Older Women," was
directed by William J. Evans, Ph.D., FACSM, FACN Director, Nutrition,
Metabolism, and Exercise Laboratory; Professor of Geriatrics, Physiology,
and Nutrition; Donald Reynolds Department of Geriatric at the University
of Arkansas for Medical Sciences. The study compared the effects of
Medical Nutrition's Pro-Stat(R) against a whey-based protein supplement
in a group of 70-year-old women, each of whom consumed the Recommended
Dietary Allowance (RDA) for protein with half coming from the supplement
and the other half from food.

"Consistent with previous studies, Pro-Stat was found to be the most
effective method of addressing one of the wide range of issues that can
result from protein insufficiency," said Frank A. Newman, Medical
Nutrition's Chairman and Chief Executive Officer. "Rigorous independent
studies such as this, combined with Pro-Stat's low cost, superior ease of
consumption and quicker absorption provide real benefits for the large and
growing elderly population."

Elderly Have High Protein Requirements

According to the study, many elderly people have a low intake of dietary
protein, yet their protein requirement may actually be higher than the
current RDA. The study noted that "high-quality protein supplements may be
useful to enhance nitrogen retention and increase the availability of
essential amino acids in elderly people."

The study concluded that Pro-Stat "maintained nitrogen balance and
preserved lean body mass during 15-days of consumption of a relatively low
protein diet."

About Medical Nutrition USA, Inc.

Medical Nutrition USA, Inc. (NASDAQ: MDNU), is a growing supplier of a
line of engineered and clinically tested medical nutritional supplements
aimed primarily at nursing homes, assisted living communities and dialysis
markets nationwide. The company's strong performance is the result of its
significant and growing share in U.S. and Canadian institutional markets
that is accelerated by ongoing, successful new-product development and
introductions. Find more on Medical Nutrition at www.mdnu.com.

This press release contains forward-looking statements that are subject to
certain risks and uncertainties. Although we believe that the expectations
reflected in any of our forward-looking statements are reasonable, actual
results could differ materially from those projected or assumed. Risks and
uncertainties that could cause or contribute to such material difference
include, but are not limited to, general economic conditions, changes in
customer demand, changes in trends in the nursing home, renal care, health
food and bariatric surgery markets, changes in competitive pricing for
products, and the impact of our competitors' new product introductions.
Our future financial condition and results of operations, as well as any
forward-looking statements are subject to change and inherent risk and
uncertainties. Other important factors that may cause actual results to
differ materially from those expressed in forward-looking statements is
contained in the Medical Nutrition USA, Inc. Annual Report on Form 10-K
for the year ended January 31, 2009 as filed with the Securities and
Exchange Commission on April 24, 2009.

Contacts:
Medical Nutrition USA, Inc.
Frank J. Kimmerling
Vice President/CFO
800.221.0308
Email Contact

Investor Relations
Adam Friedman
212.981.2529 x18
Email Contact

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