Methylcobalamin, bioactive form.
Vitamin B12
Available at Nature HeartLaboratory testedFinal products tested in Dr. Born's laboratory
Buy directlywith the partner, without detours
Independentno pharmaceutical company
Benefits, officially confirmed
What vitamin B12 is officially recognized for
- Vitamin B12 contributes to normal energy metabolism.
- Vitamin B12 contributes to the normal function of the nervous system.
- Vitamin B12 contributes to normal psychological function.
- Vitamin B12 contributes to the normal formation of red blood cells.
- Vitamin B12 contributes to the normal function of the immune system.
- Vitamin B12 contributes to the reduction of tiredness and fatigue.
- Vitamin B12 contributes to normal homocysteine metabolism.
Vitamin B12: the vitamin that, in usable form, comes practically only from animal sources, and is therefore the most important supplementation case of all.
At a glance
- Material: Vitamin B12 (Cobalamin)
- Common forms: Methylcobalamin or cyanocobalamin, it says on the label.
- Reference value (NRV): 2.5 µg per day; the German Nutrition Society estimates the requirement at 4 µg.
- Things to consider when comparing: The dose per daily serving: B12 products range from 3 to 1,000 µg, because the body only absorbs a fraction of high doses.
The vegan fact: There's hardly a nutrient on which experts are so unanimous: those who eat a purely plant-based diet cannot avoid B12 supplementation. Plants do not produce usable B12; what is advertised on algae or fermented foods are mostly analogs that the body cannot utilize. While the liver does store B12 for years, a depleted store only becomes noticeable late and then with serious consequences.
How your body absorbs nutrients →
Fact sheet on the nutrients page: Iron and B12, two that many people lack →
What's inside
Vitamin B12 in the declared form, usually as a tablet, lozenge, or drops. A good product doesn't need anything more; watch out for unnecessary additives.
What is not covered: „"Provides energy" in the sense of a noticeable energy boost. Its contribution to normal energy metabolism is permitted, a distinction that advertising often blurs.
How it is taken
One serving per day is typical, regardless of meals. The intestines only passively absorb about one percent more from high doses, so high-dose products are neither a cause for concern nor a necessity. Excess B12 is excreted.
Knowledge, figures, research
Why vitamin B12 is found almost exclusively in animal-based foods, who should pay particular attention to it, and what the figures say.
Good to know
- Metformin (for diabetes) and proton pump inhibitors (PPIs) reduce B12 absorption when taken continuously, so monitoring blood levels is worthwhile.
- An abnormal B12 level should be checked by a doctor before taking high doses yourself, as it could indicate an absorption disorder.
- Vegans who are pregnant or breastfeeding should absolutely have their B12 intake monitored by a doctor.
- Not suitable for pets. We have our animal health section for that.
As always, dietary supplements are a supplement, not a substitute for good food and not a substitute for medical advice. If you are pregnant or breastfeeding, have children, pre-existing medical conditions, or are taking long-term medication, it is advisable to consult your doctor beforehand.
Available from our partner
10 % Discount automatically appliedThe button automatically applies the discount; you don't need to enter anything. If it doesn't appear in the shopping cart: Code EDENSHEALTH.
Advertisement · Affiliate link: If you purchase through this link or using our code, we receive a commission from the provider. The price remains the same for you; in fact, it's even cheaper using our button. Nature Heart is an independent brand of Nature Heart NEM GmbH & Co. KG, Nidderau.
Why this partner
Nature Heart
We only recommend manufacturers and distributors that we have reviewed and that do not belong to any pharmaceutical company.
- Laboratory testedFinal products tested in Dr. Born's laboratory
- Organic inspectionInspection body DE-ÖKO-007 for organic products
- DisclosedAnalyses available as PDFs on every product page
- IndependentNo pharmaceutical company behind it
Questions
Frequently Asked Questions
Where do I buy Vitamin B12 ?
Directly from Nature Heart. The button above will take you to the partner's product page; shipping and invoicing will be handled by them. The price remains the same for you.
Where can I find figures and studies on this?
In the nutrient atlas: intake, forms in comparison, quantities and sources. To the nutrient atlas →
How do you choose your partners?
We check ownership, origin, organic certification, and, where available, laboratory analyses. We do not accept partners belonging to a pharmaceutical company.
