Functional medicine often uses organic acids testing to look beyond nutrient levels in the blood and assess how metabolism is actually functioning. This clip explains how markers such as lactate, pyruvate, and alpha-ketoglutarate can point to problems with thiamine-dependent enzymes, giving a clearer picture of what may be happening inside the cells in real time.

A thiamine blood test can show that B1 is present in the bloodstream without telling you whether your cells are actually getting or using enough of it. This clip explains why blood levels can look normal after a recent meal while tissues and organs may still be struggling, and why relying on standard testing alone can miss the bigger picture.

Thyroid hormone may press the gas pedal, but your cells still need a working engine. This clip explains how thiamine helps turn carbohydrates, fats, and proteins into usable energy, and why improving thyroid function alone may not fully restore energy if cellular metabolism is still struggling.