[kazinator]

> Something else in those foods you're sensitive to --- most likely salt! --- not MSG.

Can you point to studies which confirm salt as the cause of these symptoms that MSG is unfairly blamed for?

I can eat consume copious amounts of salt without any ill effects, like finishing huge bowls of soup to the last drop.

I exercise a lot so I use salt liberally, and add it to water. If I don't supplement the salt intake, I start getting muscle cramps and a kind of lethargic feeling, particularly in hot weather.

I did an experiment, though, about 8 months ago: I started drinking bouillon. I prepared about a mug of hot water with a teaspoon of the soup stock. On one mug per day, I was okay. When I went up to three, the headaches and nausea showed up. I felt like crap, so I cut it short.

There is salt in that stuff, but that can't be it.

[pharrington]

The symptoms you're describing are also primary symptoms of dehydration.

A more reliable exploration would be, after diligently logging your food and drink intake (with time and quantities) along with your physical feelings for a couple months, add a daily regime of a specific amount of pure MSG. Start small, and increase the MSG intake until you start feeling adverse symptoms. Assuming symptoms manifest, then increase your daily hydration levels (obviously not to the point of giving yourself hyperhydration) and note when/if the adverse symptoms previously noted diminish.