Vitamin B1 is a water-soluble vitamin. It accumulates very little in the liver. Therefore, it must be taken daily through food or supplements. It is necessary for the growth and functioning of many body cells.

Vitamin B1 is a water-soluble vitamin. It accumulates very little in the liver. Therefore, it must be taken daily through food or supplements. It is necessary for the growth and functioning of many body cells.

It is destroyed by cooking the food for a long time or at high temperatures.

It also disappears by draining and discarding the water of the cooked food.

It loses its effectiveness during the processing of food, so vitamin B1 is added to some foodstuffs such as white bread.

Where to get vitamin B1?

Whole grain breads
Fortified breads, baby food, noodles, rice, breakfast cereals,
Yogurt,
Sunflower seeds,
Beans, lentils, peas,
Fish,
Banana, orange,
Liver,
Hazelnut,
Egg,
Milk,
Meat.

What are the functions of vitamin B1?

It is necessary for cells to grow, develop and perform their functions,
It enables the food taken to be converted into energy,
Keeping the nervous system healthy, maintaining neurological functions,
Regular maintenance of the motor functions of the heart,

What is the need for vitamin B1?

0 – 1 year old child: 0.3 mg/day
1-3 years old child: 0.5 mg/day
4-8 years old child: 0.6 mg/day
9-13 years old child: 0.8 mg/day
Boy 14 years and older: 1.2 mg/day
Girl 14 years and older: 1.1 mg/day
Pregnancy and lactation periods: 1.4 mg/day



Normally, all your needs are met with the daily diet. But sometimes it needs reinforcement.

What happens in vitamin B1 deficiency?

Vitamin B1 deficiency can occur in some cases. These:

  • Not enought feeding,
  • Absorption disorders,
  • Alcohol addiction,
  • Diuretic use

Possible symptoms of deficiency include:

  • Weight loss,
  • Clouding of consciousness,
  • Memory loss,
  • Muscle weakness,
  • Peripheral neuropathy,
  • Weakening of the immune system.

Diseases seen in vitamin B1 deficiency:

Beriberi: It is characterized by emaciation and peripheral neuropathy. Edema of the feet and legs, congestive heart failure is seen.
Wernicke-Korsakoff Syndrome: Vitamin B1 deficiency due to alcohol dependence. Peripheral neuropathy, coordination disorder, memory loss, encephalopathy, psychosis can be seen.