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  • Original Article
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Efficacy of αs1-casein hydrolysate on stress-related symptoms in women

European Journal of Clinical Nutrition volume 61, pages 536–541 (2007)Cite this article

Abstract

Objective:

To examine the effects of αs1-casein hydrolysate on females with stress-related symptoms.

Design:

Double-blind, randomized, crossover, placebo-controlled trial.

Setting:

The αs1-casein hydrolysate was manufactured by INGREDIA (Arras, France) and the placebo was manufactured by DIETAROMA (Bourg, France). Study was designed and performed at PROCLAIM (Rennes, France), and the statistical analyses were performed by D Desor (Nancy, France).

Subjects:

A total of 63 female volunteers suffering from at least one disorder that may be related to stress such as anxiety, sleep problems and general fatigue.

Interventions:

A total of 63 volunteers participated in a double-blind, randomized, crossover, placebo-controlled study. Subjects were randomly allocated to receive either tablets containing αs1-casein hydrolysate or placebo at the dose of 150 mg/day for 30 days. After a 3 weeks washout period, they were crossed over for a new 30-day period of tablets intake. The outcome measure was a questionnaire including 44 items of symptoms that may be related stress in which the severity of each sign was evaluated using a 10-degree scale. These measures were studied repeatedly at the day of 0, 15 and 30 after the start of each interventional period.

Results:

The 30-day treatment by αs1-casein hydrolysate in females with stress-related symptoms reduced their symptoms, particularly in digestion (P<0.01), cardiovascular (P<0.05), intellectual (P<0.01), emotional (P<0.05) and social problems (P<0.05).

Conclusion:

This study showed that a 30-day ingestion of αs1-casein hydrolysate decreased the stress-related symptoms in females suggesting that this product may be used as an effective functional ingredient alleviating such symptoms.

Sponsorship:

This study was partially supported by the INGREDIA of France and Neurobiology Research Program from the Korea Ministry of Science and Technology (2004-01757) of Korea.

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Authors and Affiliations

  1. Department of Integrative Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea

    J H Kim, K H Pyun & I Shim

  2. Laboratoire de Neurosciences Comportementales, Unité de recherche sur l'Animal et les Produits Animaux, Université Henri Poincaré, Institut National Polytechnique de Lorraine/Institut National de la Recherche Agronomique, Faculté des Sciences, Vandoeuvre Les Nancy Cedex, France

    D Desor

  3. Department of Pharmaceuticals and Health Foods, Lotte R&D Center, Seoul, Korea

    Y T Kim & W J Yoon

  4. Department of Family Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea

    K S Kim

  5. Department of Psychiatry, Inha University Hospital, Incheon, Korea

    J S Jun

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  1. J H Kim
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Correspondence to I Shim.

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Kim, J., Desor, D., Kim, Y. et al. Efficacy of αs1-casein hydrolysate on stress-related symptoms in women. Eur J Clin Nutr 61, 536–541 (2007). https://doi.org/10.1038/sj.ejcn.1602553

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