MSG promotes significant sodium reduction and enjoyment of better-for-you foods, according to new study

August 11, 2020

ITASCA, Illinois - A new study published in the Journal of Food Science suggests monosodium glutamate (MSG) can be used to significantly reduce sodium while also promoting the enjoyment of better-for-you foods like grains and vegetables. In the study, supported by Ajinomoto Co., Inc., participants evaluated four different recipes in which sodium was reduced by 31 to 61 percent through the addition of MSG, and described the dishes as "flavorful," "delicious," and "balanced."

Ninety percent of Americans consume too much sodium and often have misperceptions about the taste of nutritious foods creating a barrier to healthy eating. MSG (or umami seasoning) can be one tool to encourage healthier dietary patterns.

"Just as the substitution of butter with olive oil can help to reduce saturated fat intake, MSG can be used as a partial replacement for salt to reduce sodium intake," says Dr. Jean-Xavier Guinard, Professor of Sensory Science, Co-Director of the Coffee Center at the University of California, Davis, and a lead investigator in this study. "MSG has two-thirds less sodium than table salt and imparts umami - a savory taste. Taste is a key factor in what people decide to eat. Using MSG as a replacement for some salt in the diet and to increase the appeal of nutritious foods can help make healthy eating easier, likely leading to a positive impact on health."

Culinary scientists from Pilot R&D, a food innovation and development company, developed four dishes - roasted vegetables, a quinoa bowl, a savory yogurt dip, and cauliflower fried rice with pork. Study participants (163 total, aged 18-62 years) evaluated three different versions of each dish - a standard recipe with typical salt content, a reduced salt recipe with significant sodium reduction, and the same reduced salt recipe with significant sodium reduction plus MSG added. For each dish, participants rated overall liking, appearance, flavor, texture, saltiness, aftertaste, and how likely they would be to order the dish at a restaurant. The reduced salt recipes with added MSG were liked as much as or better than (in the case of the quinoa bowl and savory yogurt dip) the standard recipes, suggesting that MSG can be used as a way to reduce sodium without compromising taste. Whereas the reduced salt recipes were commonly described as "bland" and the standard recipes described as "salty" and "sour" in some cases, the MSG recipes were associated with "delicious," "flavorful," "balanced," and "savory" in some instances.

Previous research has shown that MSG can be used to reduce sodium by 30 percent, and in some cases up to 50 percent, in packaged foods and snacks such as soups, broths, chips, and sausage, without compromising taste and consumer preference for the products. For the first time, this study shows promise for using MSG in better-for-you foods, or those with a desirable nutritional profile that consumers should be eating more of.

"Extensive scientific research confirms MSG's safety, and now we see a benefit of using it to improve the flavor of nutritious foods," says Guinard. "Survey results from our study show that many people are not aware of how to use MSG in their own cooking. The easiest place to start is to replace half of the salt in your salt shaker with MSG, or if a recipe calls for 1 teaspoon of salt, try ½ teaspoon of salt and ½ teaspoon of MSG, instead - and of course, savor the flavor."

As with any study, limitations should be considered. The study could have included many more versions of the recipes with varying levels of salt and MSG to optimize results. However, this is a promising starting point for using MSG in better-for-you foods.
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About Ajinomoto Health & Nutrition North America, Inc.

Ajinomoto Health & Nutrition North America, Inc. is a wholly-owned subsidiary of Ajinomoto Co., Inc., a global leader in the research, development, manufacture and sale of amino acid-based products for the pharmaceutical, nutraceutical, sports nutrition, health and beauty industries, as well as food ingredients. The company opened its first American office in New York in 1917 and has since grown and expanded its presence, establishing offices and production facilities in North Carolina, Iowa and Illinois. Ajinomoto Health & Nutrition North America, Inc. leverages an international manufacturing, supply and distribution chain to bring the highest-grade products to customers. For additional information on Ajinomoto Health & Nutrition North America, Inc., please visit http://www.ajinorthamerica.com.

References:

1. Halim J, Bouzari A, Felder D, and Guinard JX. The Salt Flip: Sensory mitigation of salt (and sodium) reduction with monosodium glutamate (MSG) in "Better-for-You" foods [published online ahead of print, 2020 Aug 10]. J Food Sci. doi.org/10.1111/1750-3841.15354

2. Dietary Guidelines Advisory Committee. 2020. Scientific Report of the 2020 Dietary Guidelines Advisory Committee: Advisory Report to the Secretary of Agriculture and the Secretary of Health and Human Services. U.S. Department of Agriculture, Agricultural Research Service, Washington, DC.

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