← All stories
Health, Longevity & Biohacking

MSG Functions Like Ketamine by Flooding Brain With Glutamate to Enhance Taste

Thomas DeLauer · These Condiments Shrink Fat Cells, Stop Insulin Resistance and Kill Hunger (full tier list) · July 7, 2026
MSG Functions Like Ketamine by Flooding Brain With Glutamate to Enhance Taste
Thomas DeLauer
Thomas DeLauer
These Condiments Shrink Fat Cells, Stop Insulin Resistance and Kill Hunger (full tier list)
"MSG is lighting up your brain with glutamate, which is the same kind of thing that something like ketamine does. Okay, you're lighting up your brain. You're putting a surge of glutamate. And in this case, it's obviously not going to the extreme like it is with ketamine, but similar mechanism, a flood of glutamate to make your brain feel good and almost disassociate from whatever you're eating."
The speaker compares MSG's neurological effect to ketamine, stating both flood the brain with glutamate to create pleasurable sensations. He argues MSG causes the brain to 'disassociate' from food while eating, borrowing tomorrow's reward for today's meal. Despite acknowledging lack of randomized controlled trials proving harm, he cites mechanistic and rodent studies showing concerning brain activity patterns.

About this episode

In this metabolic health-focused monologue, the speaker ranks common condiments by their impact on fat loss and metabolic function, dividing them into four tiers: beneficial, neutral, conditional, and counterproductive. The episode centers on revealing hidden mechanisms by which everyday food toppings either enhance or sabotage metabolic health. Mustard tops the beneficial tier due to allyl isothiocyanate compounds that activate TRPV1 receptors and suppress appetite through vagal nerve signaling. Balsamic vinegar ranks second for its acetic acid content, which activates AMPK to trick cells into perceiving caloric deficit while stabilizing blood glucose. Salsa earns recognition for combining lycopene, prebiotic fibers, fermentation benefits, and capsaicin's thermogenic properties. The neutral tier includes soy sauce and sugar-free ketchup, which add flavor without significant metabolic impact. The conditional category warns that mayonnaise and salad dressings can be either beneficial or harmful depending on oil quality, with seed oils being problematic and avocado or olive oils being acceptable. The counterproductive tier targets teriyaki and barbecue sauces for excessive sugar content that transforms healthy proteins into high-carb meals. Most controversially, the speaker compares MSG's glutamate-flooding mechanism to ketamine, arguing it creates dissociative brain effects that make food artificially pleasurable by borrowing neurological rewards. Throughout, the speaker emphasizes caloric density, ingredient quality, and adherence as key factors in choosing condiments for fat loss goals.

Key takeaways

More stories More from Thomas DeLauer