B Vitamins — Allithiamine, Methyl-B12 and Complete Complexes
B vitamins drive energy metabolism, the nervous system, and red blood cells. At Naturshopen, we stock active, methylated forms such as Seeking Health's B Complex MF and Adeno-B12, as well as fat-soluble special forms like Ecological Formulas' allithiamine (B1) — alternatives for those who do not absorb or tolerate synthetic standard forms.
What are B vitamins?
Eight water-soluble vitamins (B1, B2, B3, B5, B6, B7, B9, B12) that work together. They are abundant in meat, eggs, legumes, and whole grains — but absorption can be impaired by low stomach acid, certain medications, or genes (MTHFR).
How much per day?
The Swedish National Food Agency specifies reference values from approximately 1.1 mg (B1) to 2.4 µg (B12) for adults. In cases of increased need — pregnancy, vegan diet, high stress — a complex can ensure coverage.
Methylated or synthetic?
Folic acid and cyanocobalamin are inexpensive synthetic forms. Approximately 40% of the population has gene variants (MTHFR) that make conversion difficult. Folinic acid and methyl-/adenosyl-B12 are active forms that the body can use directly.
How we select a B vitamin
Active forms (methyl-, folinic, P-5-P, allithiamine), complete complexes where all eight work together, a clean ingredient list, and a manufacturer with documented quality control.
Frequently asked questions
Does B vitamin make urine yellow?
Yes, riboflavin (B2) makes urine bright yellow. This is harmless and simply shows that the body is excreting excess.
Can I take a B complex in the evening?
B vitamins can be stimulating for sensitive individuals — it's better to take them in the morning or at lunchtime.
What is allithiamine?
A fat-soluble form of B1 extracted from garlic. It crosses the blood-brain barrier more easily than regular thiamine and is often used in nerve-support protocols.
