Vitamin B1, also called thiamin or thiamine, has a number of health benefits. For starters, it helps the body convert food into energy. And as part of the eight nutrients that make up the B-complex family, vitamin B1 plays an important role in brain, nerve, muscle and heart function. It’s also thought to boost the immune system and protect against stress. That’s why not getting enough vitamin B1 can lead to fatigue, weakness and nerve damage.
Because vitamin B1 is found in many common foods, including eggs, whole grains and lean meats, most people get the recommended daily amount, which is 1.1 milligrams (mg) for women and 1.2 mg for men. People with alcoholism or anorexia are at risk for a deficiency, which may lead to a disease called beriberi. Symptoms include swollen feet and confusion.
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