B-Complex with Metafolin L-5-MTHF by Douglas Laboratories – Energy Metabolism B-Complex Support
B-Complex with Metafolin L-5-MTHF capsules by Douglas Laboratories provide a blend of eight B vitamins in vegetarian capsules. The formula includes active folate as Metafolin L-5-MTHF and methylcobalamin vitamin B12, alongside B vitamins that contribute to normal energy metabolism and neurological function.
Key B-Complex with Metafolin L-5-MTHF Benefits
- Supports normal energy metabolism by helping cells use nutrients from food in everyday energy-producing reactions.
- Provides folate and vitamin B12 for methylation, a process involved in normal cellular maintenance.
- Supports neurological function through B vitamins needed for nerve signaling and the production of neurotransmitters.
- Helps maintain normal homocysteine metabolism through the complementary roles of folate, vitamin B12 and vitamin B6.
How B-Complex with Metafolin L-5-MTHF Works
B vitamins act as helpers for enzymes, allowing cells to carry out the chemical steps that turn food into usable energy. Some work directly in energy metabolism; others help process amino acids and maintain normal nerve signaling. Folate and B12 work together in methylation support, transferring small chemical groups used in routine cellular processes. Their complementary roles also contribute to homocysteine metabolism.
Key Functional Ingredients Include:
- Folate (as Metafolin®, L-5-MTHF): Supplies the active folate form used to transfer small chemical units called methyl groups. Working with vitamin B12, folate helps recycle homocysteine into methionine and contributes to normal DNA production. These roles connect folate with cellular maintenance and healthy methylation.
- Vitamin B12 (as methylcobalamin): Works with folate to help the body reuse homocysteine and maintain its supply of methyl groups. Vitamin B12 also contributes to normal nerve function, making it an important nutritional partner to the other B vitamins in this formula.
- Vitamin B6: Helps enzymes process amino acids, the building blocks of proteins, and make neurotransmitters that carry messages between nerve cells. It also participates in homocysteine metabolism, connecting protein use with the formula’s neurological and metabolic support.
- Thiamine: Helps turn carbohydrates from food into usable cellular energy. Its coenzyme form assists key steps in breaking down fuel, supporting normal energy metabolism in tissues such as the brain and nerves that depend on a steady energy supply.
- Riboflavin: Provides building blocks for coenzymes that carry electrons during energy-producing reactions. This helps cells use nutrients efficiently and supports normal mitochondrial function. Riboflavin also participates in the processing of other B vitamins, reflecting how these nutrients work together.
B-Complex with Metafolin L-5-MTHF Is Formulated For
- Adults seeking a broad B-vitamin formula for normal nutrient and energy metabolism.
- Adults whose health professional recommends active folate with methylcobalamin B12.
- Adults looking for vegetarian capsules with manufacturer-stated gluten-free and non-GMO attributes.
Supplements support your health but do not replace a balanced diet. Always check with your healthcare practitioner if you have doubts about a new supplement. Or you may book a FREE product consultation with Holistic Health Partners, led by Carolyn Mulally BS, RN, HN-BC. You may also wish to explore our other Methylation Support Supplements, Brain Products, and Douglas Laboratories Supplements and Vitamins collections.
Recommendation: As a dietary supplement, adults take 1 capsule, 1-2 times daily, as directed by your health professional.
Serving Size: 1 Vegetarian Capsule
Servings Per Container: 60
Thiamine (vitamin B1, as thiamine HCl) ... 100 mg
Riboflavin (as vitamin B2 and 60% riboflavin 5’ phosphate) ... 12.7 mg
Niacin (vitamin B3, as niacinamide and inositol hexaniacinate) ... 108 mg
Vitamin B6 ... 16.7 mg
Vitamin B6 ingredient forms: Not stated on the manufacturer's label
Folate (as Metafolin®, L-5-MTHF) ... 667 mcg DFE (400 mcg L-5-MTHF)
Vitamin B12 (as methylcobalamin) ... 400 mcg
Biotin ... 400 mcg
Pantothenic Acid (vitamin B5, as calcium pantothenate) ... Not stated on the manufacturer's label
Metafolin® is a registered trademark of Merck KGaA, Darmstadt, Germany.
Other Ingredients: Hydroxypropyl methylcellulose (capsule), ascorbyl palmitate
Does Not Contain: Gluten-free, Non-GMO
Storage: Store in a cool, dry place, away from direct light. Use only if safety seal is intact.
Frequently Asked Questions About B-Complex with Metafolin L-5-MTHF
What are the benefits of B-Complex with Metafolin L-5-MTHF?
This Douglas Laboratories B-complex supports normal energy metabolism and neurological function. Folate as Metafolin L-5-MTHF, methylcobalamin B12 and vitamin B6 also contribute to normal homocysteine metabolism. These are nutritional support roles, not a promise that taking extra B vitamins will increase energy beyond your individual needs.
Who should take B-Complex with Metafolin L-5-MTHF?
The manufacturer’s directions are for adults. This vegetarian-capsule formula is intended for adults seeking supplemental B vitamins, including active folate and methylcobalamin B12, under a health professional’s guidance. It is not a children’s formula or a substitute for a prenatal supplement.
Are there any side effects of taking B-Complex with Metafolin L-5-MTHF?
This formula supplies vitamin B6, niacin and biotin, so review it alongside your other supplements and medicines. Excessive vitamin B6 intake over time can cause nerve problems and gastrointestinal symptoms. Ask your practitioner to review total B6 intake before combining products or using them long term, particularly if you take antiepileptic medication. Tell your clinician and laboratory that you take biotin because it can interfere with some tests. If you are pregnant, nursing, have any health condition or taking any medication, consult your health professional before using this product. Keep out of reach of children.
How does B-Complex with Metafolin L-5-MTHF support overall health?
Its B vitamins work as helpers for enzymes involved in using food, maintaining cells and supporting nerve activity. Thiamine and riboflavin contribute to energy-producing reactions, while folate and vitamin B12 work together in methylation. This combination supports normal nutritional functions rather than replacing a balanced diet.
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.