Tingling hands and feet? Peripheral neuropathy? Brain fog? Fatigue? Dr. Gundry reveals the overlooked vitamin B1 (thiamine) deficiency behind these symptoms — and the cheap fix that can change everything. That tingling, numbness, or strange feeling in your hands and feet isn’t something to ignore — and it might not be what you think it is. Dr. Gundry breaks down one of the most overlooked vitamin deficiencies in modern medicine: Vitamin B1, also known as thiamine. He explains why this critical nutrient has been quietly stripped from our food supply through grain processing, why regular alcohol consumption almost guarantees you’re…

