Prolonged Exposure to MSG Decreases Umami Taste and Appetite for Savory Foods

if I eat too many hot dogs and pork chops and ramen I'll get sick of hot dogs and pork chops and ramen. We needed a study for this?

This happens with spice too. You develop a tolerance to it. I don't think this is abnormal, and the specific mention of MSG as opposed to just umami in general makes me think this is more MSG fearmongering.