A 2026 scoping review published in Nutrients brought together 12 studies on micronutrient deficiencies in adults after heart transplantation. Among the findings most relevant to Mag-Fusion, vitamin D and B-vitamin deficiencies were frequently reported, while magnesium was also highlighted as one of the micronutrients commonly found at low levels in this population.
The review also identified an important relationship between B vitamins and homocysteine. Low folate and vitamin B6 levels were associated with elevated homocysteine, while supplementation with folic acid, B6 and B12 reduced homocysteine concentrations in the studies discussed. The effect on clinical complications remained uncertain.
These prevalence figures apply to a specific clinical population, but the review brings several nutritionally important micronutrients into the same picture. Mag-Fusion by Nutribiolite combines precisely these nutrients: magnesium, vitamin B6, vitamin B12, folate and vitamin D3.
What the review highlights about the nutrients in Mag-Fusion
The study gives particular relevance to a combination rather than to a single nutrient in isolation. Vitamin D, B vitamins and magnesium all emerge as micronutrients of interest within the same nutritional context, and Mag-Fusion brings them together in one daily formula.
Magnesium, vitamin B6 and vitamin B12 contribute to normal energy-yielding metabolism. Magnesium, B6, B12 and folate also contribute to the reduction of tiredness and fatigue, giving the formula a clear role for people looking to support everyday energy metabolism and the normal functioning of the nervous system.
The findings on homocysteine make the combination of B6, B12 and folate particularly relevant. These three vitamins contribute to normal homocysteine metabolism. Mag-Fusion includes all three rather than relying on a single B vitamin.
Vitamin D3 adds another complementary role. Vitamin D contributes to normal muscle function and the maintenance of normal bones, while magnesium also contributes to normal muscle function. This creates a broader nutritional formula around energy, tiredness, the nervous system, homocysteine metabolism and muscle function.
Why Mag-Fusion uses pure citrate and active B-vitamin forms
The review helps explain why these nutrients deserve attention. Nutribiolite then goes a step further by choosing specific forms and amounts for the formula.
The daily dose of Mag-Fusion provides 247 mg of elemental magnesium, equivalent to 66% of the nutrient reference value. This magnesium comes from pure, fully reacted magnesium citrate with no added magnesium oxide. The 247 mg therefore refers to elemental magnesium, not to the weight of the citrate itself.
The B vitamins are also supplied in selected active forms. Vitamin B6 is provided as pyridoxal-5-phosphate, or P5P; vitamin B12 as methylcobalamin; and folate as L-5-methyltetrahydrofolate, or 5-MTHF.
This is especially relevant to the scientific story of the article because the review repeatedly discusses B6, B12 and folate together in relation to homocysteine metabolism. Mag-Fusion brings all three into the same formula rather than treating them as separate additions.
The formula is completed with 25 µg of vitamin D3, equivalent to 1,000 IU per daily dose. The result is a combination of pure magnesium citrate, three active B-vitamin forms and vitamin D3 in a single two-capsule daily serving.
Mag-Fusion therefore offers more than a basic magnesium supplement. It combines several of the micronutrients highlighted by the review and uses a clearly defined magnesium source together with P5P, methylcobalamin, 5-MTHF and vitamin D3. The pack contains 120 vegetarian capsules, providing a 60-day supply.
Mag-Fusion combines 247 mg of elemental magnesium from pure magnesium citrate with P5P, methylcobalamin, 5-MTHF and 1,000 IU of vitamin D3. One formula to support energy metabolism, the nervous system and normal muscle function while helping to reduce tiredness and fatigue.
Frequently asked questions about Mag-Fusion
Why combine magnesium with B vitamins and vitamin D3?
The nutrients provide complementary functions. Magnesium, B6 and B12 contribute to normal energy-yielding metabolism, while magnesium, B6, B12 and folate help reduce tiredness and fatigue. Magnesium and vitamin D also contribute to normal muscle function.
What makes the magnesium citrate in Mag-Fusion different?
Mag-Fusion uses pure, fully reacted magnesium citrate with no added magnesium oxide. The daily serving provides 247 mg of elemental magnesium from this source.
Are the 247 mg magnesium citrate or elemental magnesium?
The 247 mg refers to elemental magnesium provided by the daily serving. Magnesium citrate is the source of that magnesium and has a different total mass.
Which forms of B6, B12 and folate does Mag-Fusion use?
Vitamin B6 is provided as pyridoxal-5-phosphate or P5P, vitamin B12 as methylcobalamin and folate as L-5-methyltetrahydrofolate or 5-MTHF.
How should Mag-Fusion be taken and how long does one pack last?
Take 1 capsule twice daily with water, preferably with meals. The pack contains 120 capsules and provides a 60-day supply.
This content is for information purposes only and is not a substitute for advice from a healthcare professional.
