Similar to the other B Complex vitamins, vitamin B1 is a water-soluble vitamin that the body uses to process carbohydrates, fat, and proteins. The body also uses vitamin B1 to produce adenosine triphosphate (ATP), the fuel the body uses to run essential processes. It may also enhance circulation, help with blood formation, and other metabolic processes.

It is natural to experience a decline in vitamin B1 levels as you get older, even without any special medical conditions. Other than old age, those suffering from vitamin B1 deficiency include alcoholics, individuals with malabsorption conditions, and those with a very poor diet. Vitamin B1 deficiency is also common in children with congenital heart disease and people with chronic fatigue syndrome. Individuals that have regular kidney dialysis may also develop severe vitamin B1 deficiency, which can be life threatening. If you are on kidney dialysis, discuss with your doctor the need to for vitamin B1 Deficiency.

Dosage and Administration

Vitamin B1 works best when taken in combination with vitamin B2 and vitamin B3. Consequently, most nutritionists usually recommend that vitamin B1 be taken as part of a B-complex vitamin or other multivitamin supplement.

While the optimal intake of vitamin B1 alone is not known, some researchers and physicians recommend 9 mg per day. The amount found in many multivitamin supplements (approximately 20–25 mg) is more than adequate for most people.