Last update June 10, 2018

Monosodium Glutamate


Safe substance and/or breastfeeding is the best option.

This is the sodium salt of glutamic acid, a non-essential amino acid which is very abundant in nature.
It is found naturally in many foods and is used as a culinary flavour enhancer.
It is much used in Chinese cuisine.
It is one of the main neurotransmitters in the brain.
It is usually well tolerated and there is no reliable evidence that it provokes allergic or anaphylactic reactions (Williams 2009).

Glutamic acid and glutamate are found in breastmilk in significant amounts and these may vary from one mother to mother; there is debate as to whether this may have a regulating effect on the infant's appetite (Larnkjær 2016).
The content of glutamic acid and glutamate in breastmilk is higher in mature milk than in colostrum and transition milk (Baldeón 2014). It is not known whether glutamate in the mother's diet influences its concentration in breastmilk (Baldeón 2014).
The concentrations of glutamate and sodium in breastmilk increase in the event of chest inflammation such as mastitis (Yoshida 2014).

Since the last update we have not found published data on its excretion in breastmilk.

Given its lack of toxicity and the absence of harmful effects recorded in infants, if taken moderately as a culinary seasoning it is considered to be compatible with breastfeeding.

Suggestions made at e-lactancia are done by APILAM team of health professionals, and are based on updated scientific publications. It is not intended to replace the relationship you have with your doctor but to compound it. The pharmaceutical industry contraindicates breastfeeding, mistakenly and without scientific reasons, in most of the drug data sheets.

Jose Maria Paricio, Founder & President of APILAM/e-Lactancia

Your contribution is essential for this service to continue to exist. We need the generosity of people like you who believe in the benefits of breastfeeding.

Thank you for helping to protect and promote breastfeeding.

José María Paricio, founder of e-lactancia.

Other names

Monosodium Glutamate is also known as

Monosodium Glutamate in other languages or writings:


Monosodium Glutamate belongs to this group or family:


Main tradenames from several countries containing Monosodium Glutamate in its composition:


Variable Value Unit
Molecular weight 187 daltons


  1. Larnkjær A, Bruun S, Pedersen D, Zachariassen G, Barkholt V, Agostoni C, Mlgaard C, Husby S, Michaelsen KF. Free Amino Acids in Human Milk and Associations With Maternal Anthropometry and Infant Growth. J Pediatr Gastroenterol Nutr. 2016 Abstract
  2. Yoshida M, Shinohara H, Sugiyama T, Kumagai M, Muto H, Kodama H. Taste of milk from inflamed breasts of breastfeeding mothers with mastitis evaluated using a taste sensor. Breastfeed Med. 2014 Abstract Full text (link to original source) Full text (in our servers)
  3. Baldeón ME, Mennella JA, Flores N, Fornasini M, San Gabriel A. Free amino acid content in breast milk of adolescent and adult mothers in Ecuador. Springerplus. 2014 Abstract Full text (link to original source) Full text (in our servers)
  4. Williams AN, Woessner KM. Monosodium glutamate 'allergy': menace or myth? Clin Exp Allergy. 2009 Abstract

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