MSG, or monosodium glutamate, is a common and widespread additive in food used mainly for flavor enhancement, but also for preservation. MSG has been used for well over a century as a food additive, but in the last couple of decades anecdotal claims of illness have been linked to MSG consumption. The U.S. Food and Drug Administration lists MSG as “generally recognized as safe,” although some health experts believe that it can negatively affect your health. MSG safety is controversial and requires more research.
by Sayer Ji
Found everywhere as an additive in your food, new research has uncovered that this “flavor enhancer” is extremely toxic, causing a battery of adverse health effects within normal dietary ranges. 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. 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 …
Common side effects that have been reported related to MSG consumption include severe headache, flushing, sweating, facial tightness, heart palpitations, chest pains, shortness of breath, nausea, muscle weakness; and numbness, tingling or burning in the mouth, around the face and in the limbs. Some people report more severe reactions than others, but the existence of cause and effect, as well as that of potentially dangerous dosages, have not been well established.