An overactive thyroid can accelerate metabolism and increase the body’s demand for key nutrients. This clip explains why thiamine deficiency has historically been associated with hyperthyroidism, and why B1 and carnitine may help support energy metabolism, muscle function, and fatigue in people dealing with thyroid-related symptoms.

Thiamine has an unusually wide safety margin compared with many other nutrients. This clip explains why even very large oral doses of B1 are generally considered well tolerated, how the body tends to limit excess absorption, and why oral supplementation is very different from injecting or infusing thiamine directly.

Parkinson’s is often framed around dopamine, but this clip looks deeper at what may be happening inside the cell. Oxidative stress, inflammation, chronic infection, and environmental toxins can interfere with key thiamine-dependent enzymes involved in energy production, including pyruvate dehydrogenase and alpha-ketoglutarate dehydrogenase. That raises a bigger question about whether impaired B1-dependent metabolism is part of the disease process itself.