Vitamin B1 (or Thiamine or thiamin or aneurine) is one of the 8 water-soluble vitamins available from food sources as well as from supplements . It was one of the first B vitamins identified .
Total thiamine content in an adult human is estimated to be around 30 mg and is located in the skeletal muscles, heart, brain, liver and kidneys. It has a biological half-life of around 9 – 18 days [2,4].
Alcohol and other anti-thiamin factors that present in some foods (such as some phenolic compounds, sulfites and thiaminases)) can reduce thiamin’s bioavailability .
Toxicity is rare for this nutrient as it’s a water-soluble vitamin and the body removes excess amount instantly [1,2,4].