All About Thiamine (B1) and Thiamine Deficiency

It is important to note that shortness of breath can have many causes, so this symptom alone is not usually a sign of thiamine deficiency. Heart failure caused by thiamine deficiency can cause breathlessness. This can occur when fluid accumulates in the lungs.Clinical studies have shown that vitamin B1 might be associated with cardiovascular diseases (Wilkinson et al., 1997). Vitamin B1 supplementation was reported to reduce blood pressure, especial in patients combined with hyperglycemia (Alaei-Shahmiri et al., 2015).