Vitamin B1

Alcohol consumption interferes with the absorption and storage of this vitamin, which is essential in the formation and maintenance of muscle and efficient use of carbohydrates as energy in the body. Requirements for this vitamin probably increase during feverish illness as the demand for carbohydrates increases.

Good food sources of vitamin B1 are whole grains, wholemeal bread, brown rice and pulses.

Vitamin B1 is also known as thiamin.

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This content was checked for accuracy at the time it was written. It may have been superseded by more recent developments. NAM recommends checking whether this is the most current information when making decisions that may affect your health.