维生素证据充分

Vitamin B12

别名: cobalamin

Vitamin B12 is needed for red blood cell formation, nerve function and DNA synthesis. It occurs naturally only in animal foods, so a supplement is essential on a vegan diet and often needed in older people and with certain medicines.

用途

Prevention and treatment of B12 deficiency on a vegan diet – strong evidence
Normal blood formation, nerve function and reduced tiredness – strong evidence (EFSA)
Lowering homocysteine – strong evidence together with folate
More energy without deficiency – weak evidence

剂型及区别

cyanocobalamin

stable, well studied and inexpensive form

methylcobalamin

active form, less stable; a suitable alternative

adenosylcobalamin

active form, often combined with methylcobalamin

spray or sublingual tablets

convenient; absorption at higher doses is similar to tablets

何时服用

In the morning or during the day, with or without food.

适合搭配

Folate, vitamin B6.

不宜同服 / 需错开

No significant interactions with supplements.

注意事项

If you take metformin or long-term stomach acid medicines, B12 levels may fall – have them checked by your doctor. In pregnancy discuss the dose with your doctor.

安全性

EFSA has not set an upper limit; do not exceed the label dose.

实用建议

On a vegan diet take B12 regularly and have your level checked from time to time (e.g. holotranscobalamin).

含 Vitamin B12 的产品 18

Vitamin B12造血精力大脑与记忆情绪

Vitamin B12 + Folate 1000 µgmethylcobalamin + methylfolate · 1 000 µg / 片造血精力大脑与记忆情绪

Vitamin B12 1000 µg1 000 µg / 份造血精力大脑与记忆情绪

Vitamin B12 500 µgcyanocobalamin · 500 µg / 粒造血精力大脑与记忆情绪

Vitamin B12 + Folate 5000 µgmethylcobalamin + methylfolate · 5 000 µg / 片造血精力大脑与记忆情绪

Vitamin B12adenosylcobalamin造血精力大脑与记忆情绪

Vitamin B12 5'-deoxyadenosylcobalamin 15 µg5'-deoxyadenosylcobalamin · 15 µg / 粒造血精力大脑与记忆情绪

Vitamin B12 dibencozide (adenosylcobalamin) 1000 µgdibencozide (adenosylcobalamin) · 1 000 µg / 粒造血精力大脑与记忆情绪

Vitamin B12 cyanocobalamin 100 µgcyanocobalamin · 100 µg / 片造血精力大脑与记忆情绪

Vitamin B12 1000 µgcyanocobalamin · 1 000 µg / 片造血精力大脑与记忆情绪

Vitamin B12liposomal造血精力大脑与记忆情绪

Vitamin B12 100 µgliposomal methylcobalamin · 100 µg / 份造血精力大脑与记忆情绪

Vitamin B12 methylcobalamin 100 µgmethylcobalamin · 100 µg / 份造血精力大脑与记忆情绪

Vitamin B12 1000 µgmethylcobalamin · 1 000 µg / 片造血精力大脑与记忆情绪

Vitamin B12 methylcobalamin 15 µgmethylcobalamin · 15 µg / 粒造血精力大脑与记忆情绪

Vitamin B12 500 µgmethylcobalamin · 500 µg / 片造血精力大脑与记忆情绪

Vitamin B12 5000 µgmethylcobalamin · 5 000 µg / 粒造血精力大脑与记忆情绪

Vitamin B12造血精力大脑与记忆情绪

如何理解证据评级

证据充分证据中等证据薄弱无证据

充分 = 多项高质量人体研究或官方推荐；中等 = 有前景但研究规模较小；薄弱 = 研究少或结果不一；无证据 = 说法未被证实。

搭配检查

选择您服用的补充剂及药物（如有），我们会显示哪些相互干扰、哪些需要错开时间、需要注意什么。

检查 Vitamin B12 与其他的搭配

您真正需要哪些补充剂？

Fénix Methode 根据您的血检结果挑选并安排服用时间——不再白花钱。

了解 Fénix Methode

用途