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Its the precursor to the Machu Picchu visit and is included in all major Machu Picchu tour packages

Vitamin B6 Why it matters: Vitamin B6 is a cofactor in more than 140 reactions, including those that regulate protein, fat, and glucose metabolism

The key is to confirm the "pernicious" part of the name, which refers to the underlying autoimmune attack

doi: 10.1249/MSS.0000000000003676
