Ingredient Deep Dive · Methylcobalamin (Active Vitamin B12)
甲钴胺
维生素B12的活性生物利用形式——随时可供您的身体使用。
甲钴胺是维生素B12的生物活性形式。与氰钴胺不同，它无需在体内转化。存在于我们的Vitamin B Complex中。
What is Methylcobalamin?
Methylcobalamin is the naturally occurring, biologically active coenzyme form of vitamin B12. Unlike cyanocobalamin, which requires enzymatic conversion in the body to become active, methylcobalamin is immediately available for use in critical metabolic processes. It is the form of B12 that participates directly in the methylation cycle — a fundamental biochemical pathway involved in DNA synthesis, neurotransmitter production, homocysteine regulation, and the maintenance of the myelin sheath that protects nerve fibres.
As the active form, methylcobalamin donates methyl groups in the methionine synthase reaction, which converts homocysteine to methionine and regenerates S-adenosylmethionine (SAMe) — the body's primary methyl donor. This methylation process is essential for DNA and RNA synthesis, gene expression regulation, neurotransmitter production, and cellular repair. Methylcobalamin is particularly relevant for individuals who may have reduced capacity to convert cyanocobalamin to its active forms, including older adults and those with certain genetic variations.
EFSA-approved health benefits
The European Food Safety Authority (EFSA) has confirmed that vitamin B12:
- contributes to normal energy-yielding metabolism
- contributes to the normal functioning of the nervous system
- contributes to normal homocysteine metabolism
- contributes to normal psychological function
- contributes to normal red blood cell formation
- contributes to the normal function of the immune system
- contributes to the reduction of tiredness and fatigue
- contributes to normal cell division
Why we use Methylcobalamin in Nutri-Leaf formulas
Nutri-Leaf uses methylcobalamin as the active B12 form in our Vitamin B Complex. As the coenzyme form of B12, methylcobalamin bypasses the conversion steps required by cyanocobalamin, making it immediately available for the methylation cycle and nervous system support. This active-form approach reflects our commitment to using the most bioavailable nutrient forms — the body does not need to activate it, it arrives ready for work.
Products containing Methylcobalamin
The Nutri-Leaf product featuring methylcobalamin is Vitamin B Complex, which provides all eight B vitamins at 100% NRV per capsule in active forms, including methylcobalamin (B12), pyridoxal-5'-phosphate (B6), and riboflavin-5'-phosphate (B2).
在我们的Energy & Vitality和Stress Management指南中，了解活性 B12 如何支持能量和神经健康。访问Ingredient Philosophy页面，进一步了解我们的营养素选择原则。
Food supplements are not a substitute for a balanced and varied diet and a healthy lifestyle.
成分档案
甲钴胺——最易利用形式的维生素B12。
- 它是什么
甲钴胺（活性维生素B12）是经过精心挑选的成分，因其品质、生物利用度以及在支持正常身体功能中的作用而被选用。我们尽可能使用活性营养素形态，以获得更优吸收。
- 我们为何使用它
我们配方中的每种成分都有特定的营养用途——无填充剂、无营销噱头、无专有混合物。标签上所见即胶囊中所含。
- 德国品质采购
所有成分均按照德国和欧洲药典质量标准采购，随后由FSSC 22000认证的补充剂生产商在德国制成成品补充剂。
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Benefits & research
- Role in the body
Vitamin B12 contributes to normal energy-yielding metabolism, the normal functioning of the nervous system, normal homocysteine metabolism and the reduction of tiredness and fatigue.
- Approved health claims
According to the European Food Safety Authority (EFSA), vitamin B12 contributes to normal energy-yielding metabolism, normal red blood cell formation, the normal functioning of the nervous system, normal homocysteine metabolism, normal cell division and the reduction of tiredness and fatigue.
- EU quality standards
Nutrient Reference Values (NRVs) are set by EU Regulation 1169/2011. Our formulas are designed to provide meaningful percentages of these reference values per daily serving.
含此成分的Nutri-Leaf配方
含有Methylcobalamin (Active Vitamin B12)的补充剂。
B族维生素复合物
Related reading
Guides about ingredients and nutrition.
您关于Methylcobalamin (Active Vitamin B12)和质量的疑问。
发现德国品质补充剂
甲钴胺——活性B12，随时为您准备。
由FSSC 22000认证的补充剂生产商在德国制造。植物性HPMC胶囊。€49起欧盟免运费。
€49起欧盟免运费 · FSSC 22000认证生产商 · 德国制造 · 植物胶囊 · 清洁配方