Thiamine, otherwise called vitamin B1, is one of eight vitamin Bs that have numerous important functions all throughout the body. It’s utilized by most of your cells and is in charge of helping convert nutrients into energy. Since the human body can’t create thiamine, it must be consumed through different thiamine-rich foods like meat, nuts, and grains.


Thiamine deficiency has the following causes:

  • Alcohol abuse
  • Old age
  • Diabetes
  • Bariatric surgery
  • Dialysis
  • High diuretic use

Numerous individuals don’t understand that they have an inadequacy, and the symptoms are often vague and frequently disregarded.


Here are signs and symptoms of thiamine deficiency:

  • Loss of appetite, which is one early manifestation of thiamine lack
  • Fatigue, which may happen steadily or all of a sudden.
  • Irritability, which makes a person become upset suddenly
  • Reduced reflexes, which is due to the effect of thiamine insufficiency on the nerves
  • Tingling sensation in arms and legs, or the sensation of “pins and needles” in the upper and lower limbs, is also known as paresthesia
  • Muscle weakness
  • Blurry vision
  • Nausea and vomiting
  • Changes in heart rate
  • Shortness of breath
  • Delirium


Blood and urine tests will quantify the levels of thiamine in your body. If your body experiences difficulty in metabolizing thiamine, you will have a low level of thiamine in your blood and a high level in your pee.

Doctors will likewise carry out a neurological test to search for lack of coordination, trouble walking, saggy eyelids, and weak reflexes. Individuals with later phases of beriberi will show memory loss and delusions.

A physical exam will caution your doctor on any heart problems. Fast heartbeat, swelling of the lower legs, and trouble breathing are some manifestations of beriberi.


Your doctor may give a thiamine shot or pill. For extreme cases, the doctor will give intravenous thiamine.

Your progress will be checked with follow-up blood tests to perceive how well your body is metabolizing the nutrient.








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