Best Magnesium Vitamin B9 Supplements of 2026

Phoebe Cooper Avatar
Phoebe Cooper
Last Updated: 6 Feb 2026

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Magnesium Vitamin B9 Supplements are a combination of two essential nutrients that play a vital role in maintaining overall health. Magnesium is an important mineral that helps stabilise blood pressure, supports healthy bones and muscles, and aids in the production of energy. Vitamin B9, also known as folic acid, is crucial for cell growth and development, particularly during pregnancy. The supplements are designed to provide a convenient and effective way to ensure adequate intake of both magnesium and vitamin B9, which can be difficult to obtain through diet alone.

At a Glance: Our Top Picks

Folate (L-Methylfolate) 1000μg Capsules by Health Leads Cover #TOP 1
Folate (L-Methylfolate) 1000μg Capsules by Health Leads
ftb score rating icon 9.8
Folate 400μg Capsules for Pregnancy Cover #TOP 2
Folate 400μg Capsules for Pregnancy
ftb score rating icon 9.7
Health4All 5-MTHF Methylfolate 1000mcg Capsules Cover #TOP 3
Health4All 5-MTHF Methylfolate 1000mcg Capsules
ftb score rating icon 9.5

Top 3 Magnesium Vitamin B9 Supplements

Folate (L-Methylfolate) 1000μg Capsules by Health Leads

Health Leads ...Working With Nature
0520
Folate (L-Methylfolate) 1000μg Capsules by Health Leads Cover
Folate (L-Methylfolate) 1000μg x 90 Capsules, 5-MTHF Active Form of Folic Acid/Vitamin B9, Please See Our 400mcg Version for Pregnancy, Magnesium Stearate Free, Made in Wales

The Health Leads Folate Capsules provide a pioneering additive-free supplement option, made in Wales with a focus on quality and purity. Featuring 5-MTHF, the active form of folic acid, these capsules ensure better absorption, which is beneficial for your overall health. This product is particularly useful for women trying to conceive, as folic acid is crucial during pregnancy. With a commitment to high standards, you can trust that you are choosing a reliable supplement to support your nutritional needs.

What We Like
Additive-free formula
Better absorption of folate
Supports pregnancy health
Manufactured in Wales

Folate 400μg Capsules for Pregnancy

Health Leads ...Working With Nature
Folate 400μg Capsules for Pregnancy Cover
Folate (L-Methylfolate) 400μg x 90 Capsules - 5-MTHF Active Form of Folic Acid/Vitamin B9 - Supports Normal Maternal Tissue Growth During Pregnancy - PRENATAL- Magnesium Stearate Free - Made in Wales

Health Leads Folate Capsules provide a pioneering additive-free supplement, manufactured in Wales to ensure quality and purity. These capsules are essential for women trying to conceive or during early pregnancy, as the World Health Organisation recommends a daily intake of 400μg of folic acid to support maternal tissue growth. The active form of folic acid, 5-MTHF, is more effectively absorbed by your body. With a commitment to high standards, you can trust these supplements for your health and wellbeing.

What We Like
Additive-free formulation
Made in Wales
Active 5-MTHF form
Supports pregnancy health
Quality-controlled manufacturing
#TOP 3

Health4All 5-MTHF Methylfolate 1000mcg Capsules

MTF1090
1 count (Pack of 1)
Health4All 5-MTHF Methylfolate 1000mcg Capsules Cover
Health4All 5-MTHF Methylfolate 1000mcg 90 Capsules 3 Months Supply, Active Form of Folic Acid (Vitamin B9), Prenatal Folate with Magnesium for Optimal Absorption, Overcomes MTHFR | Made in UK

The Health4All Methylfolate Capsules provide you with L-5-Methyltetrahydrofolate, the active form of folate that your body can absorb easily at the cellular level, making it a smart choice over synthetic folic acid. This product is especially helpful if you have the MTHFR gene mutation, as it bypasses the common difficulties in folic acid conversion, ensuring better support for your health. Each capsule also contains Magnesium Citrate, which works alongside folate for improved absorption and nutritional benefit. Made in the UK, these capsules are free from common fillers and suitable for vegetarians and vegans.

What We Like
Active folate form for absorption
Supports MTHFR gene mutation
Contains magnesium for synergy
Vegan and vegetarian friendly
Made in the UK
Buying Guide Image
Editor's Notes

During our magnesium vitamin b9 supplement research, we found 25 magnesium vitamin b9 supplement products and shortlisted 3 quality products. We collected and analyzed 15,326 customer reviews through our big data system to write the magnesium vitamin b9 supplements list. We found that most customers choose magnesium vitamin b9 supplements with an average price of £11.31.

The magnesium vitamin b9 supplements are available for purchase. We have researched hundreds of brands and picked the top brands of magnesium vitamin b9 supplements, including Health Leads ...Working With Nature, Health4All.

Written by
Phoebe Cooper Avatar

In 2000, Phoebe Cooper graduated from the University of London as a Pharmacist. She practiced as a Pharmacist for the better part of 2 decades. Phoebe says she has worked in the majority of health sectors and has sufficient accumulated knowledge and experience. In her practice, Phoebe published a series of eBooks, one of which is titled "Good Health Good Living."