MDNU Medical Nutrition Usa (MM)

A study published in the June issue of the Journal of the American Dietetic Association (JADA) shows that Pro-Stat� 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� 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