Abstract
Objective:
Update of the Hohenheim consensus on monosodium glutamate from 1997: Summary and evaluation of recent knowledge with respect to physiology and safety of monosodium glutamate.
Design:
Experts from a range of relevant disciplines received and considered a series of questions related to aspects of the topic.
Setting:
University of Hohenheim, Stuttgart, Germany.
Method:
The experts met and discussed the questions and arrived at a consensus.
Conclusion:
Total intake of glutamate from food in European countries is generally stable and ranged from 5 to 12 g/day (free: ca. 1 g, protein-bound: ca. 10 g, added as flavor: ca. 0.4 g). L-Glutamate (GLU) from all sources is mainly used as energy fuel in enterocytes. A maximum intake of 16.000 mg/kg body weight is regarded as safe. The general use of glutamate salts (monosodium-L-glutamate and others) as food additive can, thus, be regarded as harmless for the whole population. Even in unphysiologically high doses GLU will not trespass into fetal circulation. Further research work should, however, be done concerning the effects of high doses of a bolus supply at presence of an impaired blood brain barrier function. In situations with decreased appetite (e.g., elderly persons) palatability can be improved by low dose use of monosodium-L-glutamate.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 12 print issues and online access
$259.00 per year
only $21.58 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Agostoni C, Carratù B, Boniglia C, Riva E, Sanzini E (2000). Free amino acid content in standard infant formulas: comparison with human milk. J Am Coll Nutr 19, 434–438.
Allen DH, Baker GJ (1981). Chinese-restaurant asthma. N Engl J Med 305, 1154–1155.
Allen DH, Delohery MB, Baker G (1987). Monosodium L-glutamate-induced asthma. J Allergy Clin Immunol 80, 530–537.
Al-Sarraf H, Philip L (2003). Increased brain uptake and CSF clearance of 14C-glutamate in spontaneously hypertensive rats. Brain Res 994, 181–187.
Anantharaman K (1979). In utero and dietary administration of monosodium L-glutamate to mice: Reproductive performance and development in a multigeneration study. In: Filer LJ et al. (eds). Glutamic Acid: Advances in Biochemistry and Physiology. Raven Press: New York. pp 231–253.
Anderson SA, Raiten DJ (1992). Safety of amino acids used as dietary supplements. Special Publications Office, Federation of American Societies for Experimental Biology: Bethesda, MD.
Asero R (2004). Food additives intolerance: does it present as perennial rhinitis?. Head of the Allergy Unit, San Carlo Clinic, Paderno Dugnano (MI): Italy, United States. pp 25–29.
Ballabh P, Braun A, Nedergaard M (2004). The blood-brain barrier: an overview: structure, regulation, and clinical implications. Neurobiol Dis 16, 1–13.
Battaglia FC (2000). Glutamine and glutamate exchange between the fetal liver and the placenta. J Nutr 130, 974S–977S.
Bazzano G, D'Elia JA, Olson RE (1970). Monosodium glutamate: feeding of large amounts in man and gerbils. Science 169, 1208–1209.
Bellisle F (1998). Effects of monosodium glutamate on human food palatability. Ann NY Acad Sci 855, 438–441.
Berkowitz VJ (2000). A view on high-protein, low-carb diets. J Am Diet Assoc 100, 1300–1303.
Biesalski HK, Bässler KH, Diehl JF, Erbersdobler HF, Fürst P, Hammes W et al. (1997). Na-Glutamat. Akt Ernähr-Med 22, 169–178.
Boertje SB, Ward S, Robinson A (1992). H2-receptors mediate histamine-induced variations in the permeability of the blood-brain barrier of rats. Res Commun Chem Pathol Pharmacol 76, 143–154.
Burrin DG, Reeds PJ (1997). Alternative fuels in the gastrointestinal tract. Curr Opin Gastroenterol 13, 165–170.
Chaudhari N, Landin AM, Roper SD (2000). A metabotropic glutamate receptor variant functions as a taste receptor. Nature Neurosci 3, 113–119.
Chevassus H, Renard E, Bertrand G, Mourand I, Puech R, Molinier N et al. (2002). Effects of oral monosodium (L)-glutamate on insulin secretion and glucose tolerance in healthy volunteers. Br J Clin Pharmacol 53, 641–643.
Daikhin Y, Yudkoff M (2000). Compartmentation of brain glutamate metabolism in neurons and glia. J Nutr 130, 1026S–1031S.
Delay ER, Beaver AJ, Wagner KA, Stapleton JR, Harbaugh JO, Catron KD et al. (2000). Taste preference synergy between glutamate receptor agonists and inosine monophosphate in rats. Chem Senses 25, 507–515.
Dickmann LJ, Locuson CW, Jones JP, Rettie AE (2004). Differential roles of Arg97, Asp293, and Arg108 in enzyme stability and substrate specificity of CYP2C9. Mol Pharmacol 65, 842–850.
Dillon PM (1993). Invasion of the MSG-free ingredients. Food Eng 64, 133–136.
Fernstrom JD, Cameron JL, Fernstrom MH, McConaha C, Weltzin TE, Kaye WH (1996). Short-term neuroendocrine effects of a large oral dose of monosodium glutamate in fasting male subjects. J Clin Endocrinol Metab 81, 184–191.
Fernstrom JD, Garattini S (2000). International symposium on glutamate. J Nutr 130 (Suppl 4), 891S–1079S.
Fürst P, Stehle P (2004). What are the essential elements needed for the determination of amino acid requirements in humans? J Nutr 134, 1558S–1565S.
Garattini S (2000). Glutamic acid, twenty years later. J Nutr 130, 974S–977S.
Geha RS, Beiser A, Ren C, Patterson R, Greenberger PA, Grammer LC et al. (2000). Multicenter, double-blind, placebo-controlled, multiple-challenge evaluation of reported reactions to monosodium glutamate. J Allergy Clin Immunol 106, 973–980.
German Nutrition Society (2004). The Nutrition Report 2004. Bonn, Germany: Deutsche Gesellschaft für Ernährung - MedienService.
Goldsmith PC (2000). Neuroglial responses to elevated glutamate in the medial basal hypothalamus of the infant mouse. J Nutr 130, 1032–1038.
Graham TE, Sgro V, Friars D, Gibala MJ (2000). Glutamate ingestion: the plasma and muscle free amino acid pools of resting humans. Am J Physiol Endocinol Metab 278, E83–E89.
Hinoi E, Takarada T, Ueshima T, Tsuchihashi Y, Yoneda Y (2004). Glutamate signaling in peripheral tissues. Eur J Biochem 271, 1–13.
Hoon MA, Adler E, Lindemeier J, Battey JF, Ryba NJ, Zuker CS (1999). Putative mammalian taste receptors: a class of taste-specific GPCRs with distinct topographic selectivity. Cell 96, 541–551.
Hundal HS, Watt PW, Rennie MJ (1986). Amino acid transport in perfused rat skeletal muscle. Biochem Soc Transactions 14, 1070–1071.
Jochum F, Meinardus P, Alteheld B, Colling S, Fusch C, Stehle P (2006). Total glutamine content in preterm and term human breast milk. Acta Paediatr 95, 985–990.
Kempski O, Andrian UV, Schürer L, Baethmann A (1990). Intravenous glutamate enhances edema formation after a freezing lesion. Adv Neurol 52, 219–222.
Kovacevic Z, McGivan JD (1983). Mitochondrial metabolism of glutamine and glutamate and its physiological significance. Physiol Rev 63, 547–605.
Kuhn KS, Stehle P, Fürst P (1996). Glutamine content of protein and peptide-based enteral products. J Parenter Enteral Nutr 20, 292–295.
Kurihara K, Kashiwayanagi M (2000). Physiological studies on umami taste. J Nutr 130, 931S–934S.
Li X, Staszewski L, Xu H, Durick K, Zoller M, Adler E (2002). Human receptors for sweet and umami taste. Proc Natl Acad Sci (USA) 99, 4692–4696.
Lin CM, Abcouwer SF, Souba WW (1999). Effect of dietary glutamate on chemotherapy-induced immunosuppression. Nutrition 15, 687–696.
Low SY, Taylor PM, Hundal HS, Pogson CI, Rennie MJ (1992). Transport of L-glutamine and L-glutamate across sinusoidal membranes of rat liver. Effects of starvation, diabetes and corticosteroid treatment. Biochem J 284, 333–340.
Lugaz O, Pillias AM, Faurion A (2002). A new specific ageusia: some humans cannot taste L-glutamate. Chem Senses 27, 105–115.
Mayhan WG (1990). Disruption of blood–brain barrier during acute hypertension in adult and aged rats. Am J Physiol 258, H1735–H1738.
Meinardus P, Alteheld B, Colling S, Fusch C, Jochum F, Stehle P (2004). Glutamine content in breast milk after term and preterm delivery. Clin Nutr 23, 894.
Meldrum BS (2000). Glutamate as a neurotransmitter in the brain: review of physiology and pathology. J Nutr 130, 1007S–1015S.
Mojet J, Heidema J, Christ-Hazelhof E (2003). Taste perception with age: generic or specific losses in supra-threshold intensities of five taste qualities? Chem Senses 28, 397–413.
Moneret-Vautrin DA (1987). Monosodium glutamate – induced asthma: study of the potential risk in 30 asthmatics and review of the literature. Allergic Immunol 19, 29–35.
Mooradian AD (1988). Effect of aging on the blood–brain barrier. Neurobiol Aging 9, 31–39.
Mourtzakis M, Graham TE (2002). Glutamate ingestion and its effects at rest and during exercise in humans. J Appl Physiol 93, 1251–1259.
Nakamura M, Kurihara K (1991). Canine taste nerve responses to monosodium glutamate and disodium guanylate: differentiation between umami and salt components with amiloride. Brain Res 541, 21–28.
Nelson G, Chandrashekar J, Hoon MA, Feng L, Zhao G, Ryba NJ et al. (2002). An amino-acid taste receptor. Nature 416, 199–202.
Neuwelt EA (2004). Mechanisms of disease: the blood–brain barrier. Neurosurgery 54, 131–140.
O'Kane RL, Martinez-Lopez I, DeJoseph MR, Vina JR, Hawkins RA (1999). Na+-dependent glutamate transporters (EAAT1, EAAT2, and EAAT3) of the blood–brain barrier. A mechanism for glutamate removal. J Biol Chem 274, 31891–31895.
Panel on Macronutrients: Protein and Amino Acids (2002) In: Dietary Reference Intakes for Energy, Carbohydrate, Fibre, Fat, Fatty Acids, Cholesterol, Protein and Amino Acids (Macronutrients). Institute of Medicine (Ed.) National Academies Press:Washington, D.C, pp 10.1–10143.
Raiten DJ, Talbot JM, Fisher KD (1995). Analysis of adverse reactions to monosodium glutamate (MSG). FASEB Life Sciences Research Office: Bethesda, MD. pp 1–163.
Ramirez I, DeSantiago S, Tovar AR, Ortiz N, Torres N (2001). Amino acid intake during lactation and amino acids of plasma and human milk. Adv Exp Med Biol 501, 415–421.
Reeds PJ, Burrin DG, Stoll B, Jahoor F (2000). Intestinal glutamate metabolism. J Nutr 130, 978S–982S.
Rhodes J, Titherley AC, Norman JA, Wood R, Lord DW (1991). A survey of the monosodium glutamate content of foods and an estimation of the dietary intake of monosodium glutamate. Food Add Contam 8, 663–672.
Rudloff S, Kunz C (1997). Protein and nonprotein nitrogen components in human milk, bovine milk, and infant formula: quantitative and qualitative aspects in infant nutrition. J Pediatr Gastroenterol Nutr 24, 328–344.
Schiffman SS (2000). Intensification of sensory properties of foods for the elderly. J Nutr 130, 927S–930S.
Schwartzstein RM (1992). Pulmonary reactions to monosodium glutamate. Pediatr Allergy Immunol 3, 228–232.
Shah GN, Mooradian AD (1997). Age-related changes in the blood–brain barrier. Exp Gerontol 32, 501–519.
Skoog I, Wallin A, Fredman P, Hesse C, Aevarsson O, Karlsson I et al. (1998). A population study on blood–brain barrier function in 85-year-olds: relation to Alzheimer's disease and vascular dementia. Neurology 50, 966–971.
Smith QR (2000). Transport of glutamate and other amino acids at the blood–brain barrier. J Nutr 130, 1016S–1022S.
Starr JM, Wardlaw J, Ferguson K, MacLullich A, Deary IJ, Marshall I (2003). Increased blood-brain barrier permeability in type II diabetes demonstrated by gadolinium magnetic resonance imaging. J Neurol Neurosurg Psychiatry 74, 70–76.
Stegink LD, Pitkin RM, Reynolds WA, Filer Jr LJ, Boaz DP, Brummel MC (1975). Placental transfer of glutamate and its metabolites in the primate. Am J Obstet Gynecol 122, 70–78.
Stevenson DD (2000). Monosodium glutamate and asthma. J Nutr 130, 1067–1073.
Stoll B, Henry J, Reeds PJ, Yu H, Jahoor F, Burrin DG (1998). Catabolism dominates the first-pass intestinal metabolism of dietary essential amino acids in milk protein-fed piglets. J Nutr 128, 606–614.
Stover JF, Kempski OS (1999). Glutamate-containing parenteral nutrition doubles plasma glutamate: a risk factor in neurosurgical patients with blood brain-barrier damage? Crit Care Med 27, 2252–2256.
Stover JF, Kempski OS (2005). Anesthesia increases circulating glutamate in neurosurgical patients. Acta Neurochir 147, 847–853.
Stover JF, Sakowitz OW, Kroppenstedt SN, Thomale UW, Kempski OS, Flugge G et al. (2004). Differential effects of prolonged isoflurane anesthesia on plasma, extracellular, and CSF glutamate, neuronal activity, 125I-Mk801 NMDA receptor binding, and brain edema in traumatic brain-injured rats. Acta Neurochir 146, 819–830.
Tamaki K, Sadoshima S, Heistad DD (1984). Increased susceptibility to osmotic disruption of the blood-brain barrier in chronic hypertension. Hypertension 6, 633–638.
Tang JP, Xu ZQ, Douglas FL, Rakhit A, Melethil S (1993). Increased blood–brain barrier permeability of amino acids in chronic hypertension. Life Sci 53, PL417–420.
Tsai PJ, Huang PC (1999). Circadian variations in plasma and erythrocyte concentrations of glutamate, glutamine, and alanine in men on a diet without and with added monosodium glutamate. Metabolism 48, 1455–1460.
Ueno M, Sakamoto H, Tomimoto H, Akiguchi I, Onodera M, Huang CL et al. (2004). Blood-brain barrier is impaired in the hippocampus of young adult spontaneously hypertensive rats. Acta Neuropathol 107, 532–538.
Ujiie M, Dickstein DL, Carlow DA, Jefferies WA (2003). Blood–brain barrier permeability precedes senile plaque formation in an Alzheimer disease model. Microcirculation 10, 463–470.
Walker R, Lupien JR (2000). The safety evaluation of monosodium glutamate. J Nutr 130, 1049S–1052S.
Woessner KM, Simon RA, Stevenson DD (1999). Monosodium glutamate sensitivity in asthma. J Allergy Clin Immunol 104, 305–310.
Woods RK, Weiner JM, Thien F, Abramson M, Walters EH (1998). The effects of monosodium glutamate in adults with asthma who perceive themselves to be monosodium glutamate-intolerant. J Allergy Clin Immunol 101, 762–771.
Woodward DR, Lewis PA, Ball PJ, Beard TC (2003). Calcium glutamate enhances acceptability of reduced-salt sausages. Asia Pac J Clin Nutr 12, S35.
Yamaguchi S (1987). Fundamental properties of umami in human taste sensation. In: Kawamura, Y and Kare MR (eds). Umami: A Basic Taste. Marcel Dekker: New York. pp 41–73.
Yang WH, Drouin MA, Herbert M, Mao Y, Karsh J (1997). The monosodium glutamate symptom complex: assessment in a double-blind, placebo-controlled, randomized study. J Allergy Clin Immunol 99, 757–762.
Young E (1997). Prevalence of intolerance to food additives. Environ Toxicol Pharmacol 4, 111–114.
Zhao GQ, Zhang Y, Hoon MA, Chandrashekar J, Erlenbach I, Ryba NJ et al. (2003). The receptors for mammalian sweet and umami taste. Cell 115, 255–266.
Author information
Authors and Affiliations
Corresponding author
Additional information
Guarantor: P Stehle.
Rights and permissions
About this article
Cite this article
Beyreuther, K., Biesalski, H., Fernstrom, J. et al. Consensus meeting: monosodium glutamate – an update. Eur J Clin Nutr 61, 304–313 (2007). https://doi.org/10.1038/sj.ejcn.1602526
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1038/sj.ejcn.1602526
Keywords
This article is cited by
-
Unraveling the MSG-Headache Controversy: an Updated Literature Review
Current Pain and Headache Reports (2024)
-
Perceptions, barriers and enablers of salt reduction in Malaysian out-of-home sectors (MySaltOH): from the point of view of policy-makers and food industries
Health Research Policy and Systems (2023)
-
Determination of Monosodium Glutamate in Noodles Using a Simple Spectrofluorometric Method based on an Emission Turn-on Approach
Journal of Fluorescence (2023)
-
Effect of monosodium glutamate on fetal development and progesterone level in pregnant Wistar Albino rats
Environmental Science and Pollution Research (2023)
-
Neuroprotective Potential of Tannic Acid Against Neurotoxic Outputs of Monosodium Glutamate in Rat Cerebral Cortex
Neurotoxicity Research (2023)