, high strength thiamin, easy to absorb nutrient in small capsules, clinical nutrition grade nutrient, manufactured to pharmaceutical standardsvitamin b 1 is found in whole grains meat & pulses. refining of foods tends to deplete the level of vitamin b 1 with brown rice having many times more of this vitamin than white rice. in the body it is mainly found in skeletal muscle brain heart muscle kidney & liver. it plays a crucial part in energy release from food & carbohydrate metabolism & because it cannot be stored in the body a regular amount is required from the diet to maintain health. as a consequence those with high carbohydrate intakes including sugar & alcohol require higher levels of vitamin b 1.this is a high strength supplement that provides clinical nutrition grade thiamin in a form that is known to be well absorbed & which can be taken on a long term basis. however we believe that few people will be deficient in just a single b vitamin & therefore it is sensible to consider a b complex for longer term use.