Vitamin B1

Vitamin B1, also known as thiamine, is an essential nutrient that all tissues of the body need to function properly. Thiamine was the first B vitamin that scientists discovered. This is why its name carries the number 1. Like the other B vitamins, thiamine is water-soluble and can't be stored in the body; however, the body maintains a small reserve of these vitamins in most cases.

Function

Thiamine plays a critical role in energy metabolism and, therefore, in the growth, development, and function of cells. It helps the body cells convert carbohydrates into energy. It is essential for the functioning of the heart, muscles, and nervous system.

Sources

Thiamine is found in a wide variety of foods at at least low levels. Some of the best sources of thiamine are lean meats; dried beans, peas, and soybeans; and whole or enriched grains and bread. Milk, fruits, and vegetables are not very high in thiamine, but when consumed in large amounts, they become a significant source.

Deficiency

Thiamine deficiency can cause numerous health problems, including heart problems, nerve damage, Wernicke-Korsakoff syndrome (a brain disorder that affects memory), and beriberi, a disease that can cause heart failure.

Recommended Intake

The recommended daily intake of thiamine varies depending on age, sex, and life stage. For example, adults need more thiamine than children, and pregnant or breastfeeding women need more thiamine than other women.

Overdose

Although not common, consuming excessive amounts of thiamine can lead to an overdose. Symptoms of a thiamine overdose may include weakness, irregular heartbeat, nausea, and difficulty sleeping.

See Also

• Vitamin B2
• Vitamin B3
• Vitamin B5
• Vitamin B6
• Vitamin B7
• Vitamin B9
• Vitamin B12

References

Vitamin B1 Resources
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