Vitamin B1 (Thiamine)

Vitamin B1 is required by the body for carbohydrate metabolism, and neuromuscular transmission.

The most common form of B1 deficiency is beriberi.

Beriberi is a disease of the peripheral nerves directly caused by low intake of Vitamin B1 or non-assimilation or absorption of the Vitamin.

Symptoms include fatigue, diarrhea, appetite and weight loss, abdominal discomfort and constipation. Wasting and paralysis of limbs due to decreased nerve function.

It can even cause heart failure.

Beriberi has also been seen in cases such as hypothyroidism, infections, lactation, pregnancy and chronic alcoholism.

Supplementation of Vitamin B1 will cure these symptoms associated with beriberi.

Other Vitamin B1 Deficiency Symptoms

• Poor circulation

• Cold hands and feet/warm hands and feet

• Fluid retention

• Underactive Thyroid

• Fatigue

• Depression

• Insomnia

• Debilitating weakness

• Painful muscles

Conditions That Can Cause B1 Deficiency

Alcoholism due to malabsorption

Crohn's Disease due to malabsorption

Ulcerative Colitis due to malabsorption



Pregnancy due to increased need for developing foetus

Increased Carbohydrate Intake


Increased Physical Activity

Food Sources of Vitamin B1

Brown Rice


Sunflower seeds

Sesame seeds


Soya Beans

Millet and other grains

Dosages of Vitamin B1 are based on a reccomended daily allowance of 1.4mg per day.

This amount can easily be found in any good B Complex.

Latest Clinical Trials

B1 helps cataracts


Latest research has found that B1 can reduce the occurance of cataracts.

B1 helps Leigh's disease

Leigh's Disease

Leigh's disease and the metabolic symptoms associated with this disease has been shown to improve with B1 supplementation.

From Vitamin B1 back to Vitamin Deficiencies...

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