Some people feel tired, groggy, or noticeably worse when they try adding carbohydrates back after spending a long time low carb. This clip explores the role thiamine may play in that response. Because B1 is essential for processing glucose and turning it into usable energy, increasing thiamine may help restore the body’s ability to handle carbohydrates efficiently and regain metabolic flexibility.
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Why Low B1 Can Disrupt The Gut Brain Connection
This clip breaks down one of the earliest ways low thiamine may start showing up: the communication between the brain and the gut begins to break down. That matters because this whole pathway runs through the vagus nerve and depends heavily on acetylcholine. If B1 is too low, the signal can get weaker, the timing can get thrown off, and the gut starts losing clear instructions. What looks like a digestion problem may actually start much higher up the chain.
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