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B-1 100mg 100 tab.

B-1 100mg

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Availability: UK Stock
Buy for points: 20300
£ 5.98




Our recomendation


  • Great source of vitamin B1 and magnesium
  • Regulates metabolism
  • Suitable for vegetarians
  • Does not contain gluten
  • Supports cognitive functions
  • Supports the nervous system
  • Reduces the feeling of fatigue
  • Improves brain function

Source Naturals B-1 is a dietary supplement with vitamin B1 and magnesium, characterised by a high neuroprotective potential. The preparation is beneficial for the condition of the nervous system, reduces the feeling of fatigue and improves the psychoemotional condition.

Vitamin B1 (thiamin) is one of the earliest discovered vitamins. Chemically speaking, it is built out of two rings - a thiazole ring and a pyrimidine ring, connected with each other by a methylene bridge. Thiamin is a water-soluble compound.

Vitamin B1 is absorbed in the small intestine, and from there it is delivered to the organism's tissues. As a result of phosphorylation, the compound transforms into thiamin pyrophosphate (TPP), which plays a role of a coenzyme.

Vitamin B1 is responsible for regulating many important physiological processes in the organism. It performs the function of a coenzyme for many enzymatic reactions connected with such processes as metabolism and amino acid transformations. Moreover, thiamin supports the nervous and circulatory systems and has a beneficial effect on mental condition.

Vitamin B1 deficiency manifests itself through a low mood, gastrointestinal disorders, reduced concentration, the feeling of fatigue and neurological disorders. A long-lasting thiamin deficiency leads to the illness called beriberi, whose symptoms are circulatory system disorders, eating disorders, weight loss, loss of muscle tissue, and swellings.

The organs particularly susceptible to damage caused by a thiamin deficiency are: the thalamus, the cerebellum and the brainstem.

Hypervitaminosis B1 is a rare occurrence, as the organism deals very well with its excess by removing it with urine.

Magnesium is a mineral component responsible for activating more than 300 enzymes. Apart from that, it improves neural transmission, participates and DNA and RNA synthesis and plays an important role in muscle contractility and mineral management.

Magnesium deficiencies manifest themselves through general weakness of the organism, increased fatigue, calf contractions and a worsened condition of hair and nails.

Support for the immune system
Vitamin B1 has a metabolic and structural function in the nervous system. The first one (enzymatic) is connected with the activity of thiamin-dependent enzymes. Its deficiency has been proven to cause a decrease in the level of enzymes that participate in Krebs cycle: pyruvate dehydrogenase, α-ketaglutarate dehydrogenase and transketolase. That results in metabolism disorders and energy storage, as well as distorted biosynthesis of nucleic acids, which can lead to the occurrence of neurological symptoms.

Vitamin B1's structural (non-enzymatic) function is connected with its participation in building nerve cells and their regeneration, thanks to which it contributes to the improvement of neurotransmission.

Moreover, thiamin participates in capturing neurotransmitters, such as serotonin, whose decreased concentration causes neurodegenerative disorders, and γ-aminobutyric acid (GABA), whose deficiency causes cerebellum function disorders.

Thamin and neurodegenerative diseases
A positive effect of thiamin has been demonstrated in Parkinson's disease. It has been observed that administering thiamin can contribute to an increase in dopamine concentration, a reduction of symptoms and an improvement of motor functions.

It has also been documented that in the case of Alzheimer's disease, there is a decrease in the activity of thiamin-dependent enzymes, which suggests that vitamin B1 administration can bring positive results and support their activity.

To sum up, Source Naturals B-1 is a product recommended for those who are in the risk group of vitamin B1 deficiency. The supplement is helpful in reducing nervous system disorders and contributes to the minimisation of symptoms such as weakness, lack of concentration and increased fatigue. The additional component, magnesium, increases the product's effects and eliminates the symptoms of exhaustion. 

Product name:B-1 100mg    
Container size: 100 tablets
Serving size: 1 tablet
Servings per container: 100
Supplement facts: per 1 tablet amount %DV
Thiamin (vitamin B-1) 100 mg 6,667%
Calcium 35 mg 4%

1 tablet daily

Source Naturals is an American vitamin and herbal supplements provider created in year 1982 to support each individual’s potential to enjoy optimal health. The company subsequently introduced numerous of award-winning formulas, recognized for their excellence in independent surveys and nutritional analyses.