Thiamin is an essential vitamin needed for energy production, brain health, heart health, muscle function, and mood. Signs that thiamin is lacking include trouble focusing, poor coordination, fatigue, fluid retention, and muscle pain. Thiamin is depleted by high carbohydrates and sugar, caffeine, alcohol, certain medications, and stress.

Thiamin deficiency is common in today's world but doesn't have to be. A diet rich in whole foods supplies sufficient thiamin which is important for brain, nerves, heart, blood sugar, and more.

Magnesium deficiency: a possible cause of thiamine refractoriness in Wernicke-Korsakoff encephalopathy

Thiamine and magnesium deficiencies: keys to disease

Thiamine and magnesium deficiencies: keys to disease.