Vitamin B1 - Thiamin
Thiamine, or vitamin B1, is the first of eight B vitamins. It is involved in burning carbohydrates (more so than any other vitamin), making ATP, supporting mitochondria, and supporting the heart and nervous system. Deficiency may be more common than we think. Thiamin can be found in high concentrations in nutritional yeast, legumes, and whole grains, and can be safely supplemented (usually in doses between 10 and 100 mg).