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News Link • Food

MSG Proven Highly Toxic: 1 Dose Causes Headache In Healthy Subject

•, By Sayer Ji
 A new study published in the Journal of Headache Pain reveals that a single intake of monosodium glutamate (MSG) produces headache in the majority of healthy subjects tested.[i]

The researchers conducted a double-blinded, placebo-controlled, crossover study to examine the effect of repeated MSG intake on the following:

Spontaneous pain Mechanical sensitivity of masticatory muscles (the four muscles that move the jaw laterally) Side effects Blood pressure

 The study method was described as follows:

“Fourteen healthy subjects participated in 5 daily sessions for one week of MSG intake (150 mg/kg) or placebo (24 mg/kg NaCl) (randomized, double-blinded). Spontaneous pain, pressure pain thresholds and tolerance levels for the masseter and temporalis muscles, side effects, and blood pressure were evaluated before and 15, 30, and 50 min after MSG intake. Whole saliva samples were taken before and 30 min after MSG intake to assess glutamate concentrations.”

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