Trying thiamine once and feeling no difference does not necessarily mean B1 will not help. This clip explains why thiamine hydrochloride, benfotiamine, and TTFD can behave differently in the body, and why both the form and the dose may matter when judging whether a B1-based approach is actually working.

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.