What are the benefits of combining magnesium and vitamin B12? A review in *Nutrients* published in 2026 analyses the functions of vitamin B12 and the results of supplementing with it. Its conclusions help to distinguish the role of a nutrient from expectations regarding a supplement.
Nutribiolite’s Mag-fusion combines magnesium, vitamins B6 and B12, folate and vitamin D3. The product provides a defined dose of magnesium, which helps reduce tiredness and fatigue, alongside other nutrients in a regimen of two capsules a day.
Why Mag-fusion combines magnesium with vitamin B12
The narrative review examined studies on B12 supplementation, particularly in adults without an established deficiency. Bear in mind that this vitamin acts as a cofactor – a substance that facilitates enzymatic reactions – in processes related to cellular energy and the maintenance of the nervous system.
In people without a clinical or biochemical deficiency, B12 supplementation did not show consistent benefits for fatigue. The studies used different doses, durations and combinations. The review did not evaluate Mag-fusion nor does it demonstrate that combining magnesium and B12 improves these outcomes.
In Mag-fusion, magnesium contributes to normal energy metabolism – the set of processes that enable energy to be obtained and utilised – and to the normal functioning of the nervous system. Each daily dose provides 247 mg of elemental magnesium from pure magnesium citrate, approximately 66 per cent of the reference nutrient intake for adults.
The formula contains B12 as methylcobalamin, alongside B6 and folate, also known as vitamin B9. Combining all three in the same product allows them to be taken together with magnesium without having to organise several separate regimens.
Mag-fusion adds support for bones and muscles to its formula with B12
Mag-fusion includes vitamin D3 to help maintain healthy bones and support normal muscle function – functions in which magnesium also plays a part. Vitamin D also contributes to the normal absorption and utilisation of calcium and phosphorus.
The daily dose contains 1,000 IU of vitamin D3, equivalent to 25 µg, in the form of cholecalciferol. This combination helps to supplement the diet by supporting both energy metabolism and bone and muscle maintenance.
The recommended dosage is one capsule twice a day, after meals and with water. The pack contains 120 vegetable capsules, sufficient for 60 days. This format makes it easier to stick to a routine and know when it is time to restock the product.
Please adhere to the recommended dose. Food supplements are not a substitute for a varied and balanced diet or a healthy lifestyle. If fatigue persists, consult a healthcare professional.
Choosing Mag-fusion allows you to combine a measured dose of magnesium, vitamin D3 and three B vitamins in a two-month supply. Check the formula if you are looking to supplement your diet with a regimen that supports energy, bone and muscle health.
Mag-fusion provides magnesium to help reduce tiredness and fatigue, along with vitamins D3, B6, B12 and folate. A pack of 120 vegetarian capsules lasts for 60 days.
Frequently Asked Questions
What are the benefits of combining magnesium and B12 in Mag-fusion?
It combines both nutrients with B6, folate and D3 in the same regimen. Magnesium contributes to normal energy metabolism and helps reduce tiredness and fatigue.
Does the 247 mg refer to magnesium or citrate?
It refers to the elemental magnesium in the daily dose of two capsules, supplied as magnesium citrate. This is equivalent to approximately 66 per cent of the reference intake.
What forms of B vitamins does it contain?
B6 as pyridoxal-5′-phosphate, B12 as methylcobalamin and folate as calcium L-5-methyltetrahydrofolate.
How should Mag-fusion be taken?
One capsule twice a day, after meals, with water. The daily dose is two capsules.
How long does a pack last?
It contains 120 vegetable capsules. At the recommended dosage, this provides a 60-day supply, approximately two months.
This information is for guidance only and is not a substitute for advice from a healthcare professional.
