Vitamin B1 is a water-soluble vitamin, also known as thiamin and aneurine hydrochloride. Get information on the health benefits, sources, functions and deficiency of Vitamin B1.

Vitamin B1 Benefits

 Vitamin B1, which is also known by the name of thiamin (also spelled as thiamine) and aneurine hydrochloride, is one of the eight water-soluble B vitamins. Discovered in 1910, by Umetaro Suzuki in Japan, it is one of the first organic compounds to be recognized as a vitamin. However, its present name i.e. thiamin was given by Robert R. Williams, who also reported its chemical composition and synthesis. Thiamin occurs in the human body as free thiamin and as various phosphorylated forms. Let us know more about the benefits, sources, functions and deficiency of Vitamin B1.

  • It aids blood circulation and also helps in the formation of blood.
  • It can help the immune system work better in stressful situations.
  • It has been found to be very useful with regard to a person's memory and concentration.
  • It is believed to be helpful in treating nervous disorders like multiple sclerosis, Bell’s palsy and neuritis.
  • It aids the workings of enzymes that make break down carbohydrates energy available to the body.
  • It serves as an anti-oxidant and helps protect the body from the effects of aging, smoking and alcohol consumption.
  • Researches have found indications that it can help treat arthritis, cataract and infertility.
  • It aids the production of hydrochloric acids in the body, thus aiding proper digestion.
  • Studies have revealed that Vitamin B1 supplements might help prevent as well as slow down Alzheimer’s disease. 
Recommended Daily Intake
Age Group
Male (mg/day)
Female (mg/day)
0-6 months 
0.2 (AI) 
0.2 (AI)
7-12 months 
0.3 (AI) 
0.3 (AI)
1-3 years 
4-8 years 
9-13 years   
14-18 years
19 years and above
  • Almonds
  • Asparagus
  • Bengal gram dhal
  • Brazil nuts
  • Brown rice
  • Cantaloupe
  • Cauliflower
  • Cow's milk
  • Cured ham
  • Egg
  • Eggs
  • Fortified breakfast cereal
  • Groundnut
  • Kale
  • Kidney beans
  • Lentils
  • Liver (beef or pork)
  • Milk
  • Mutton
  • Navy beans
  • Oatmeal
  • Orange
  • Peas
  • Pecans
  • Pork
  • Potatoes
  • Sheep's liver
  • Spinach
  • Wheat germ
  • White bread
  • White rice
  • Whole grain flour (rye or wheat)
  • Whole wheat bread
  • Whole-grain cereals
  • Yeast  
  • Helps maintain healthy nervous system
  • Necessary for healthy mucous membranes
  • Helps convert glucose into usable energy
  • Stimulates action in the brain
  • Promotes general growth
  • Aids the digestion of carbohydrates
  • Helps maintain a normal red blood count 
The following symptoms will be seen in case of deficiency of Vitamin B1. 
  • Anorexia nervosa
  • Beriberi (in excessive deficiency)
  • Constipation
  • Depression
  • Fatigue
  • Foot paralysis
  • General weakness
  • Hand paralysis
  • Headache
  • Heart problems
  • Indigestion
  • Irritability
  • Lethargy
  • Limb pains
  • Loss of appetite
  • Muscle ache
  • Nausea & vomiting
  • Pins & needles, numbness in legs
  • Swollen joints
  • Tender muscles
  • Tiredness

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