Magnesium: its role in nutrition and carcinogenesis.
Level 5 - mechanism / opinion, no new human data
Narrative review of mechanisms and published literature without systematic review or meta-analytic methodology.
What was done
The authors conducted a narrative literature review examining the physiological roles of magnesium (Mg2+), dietary sources, clinical consequences of deficiency (including cardiovascular diseases, diabetes, and attention deficit-hyperactivity disorder), and mechanistic pathways linking magnesium depletion to carcinogenesis, oxidative DNA damage, and tumour biology.
What was found
The abstract reports no quantitative data or effect sizes. It notes that magnesium functions as an essential cofactor for DNA replication and repair systems preserving genomic fidelity. The authors describe conflicting results across experimental, epidemiological, and clinical studies regarding magnesium intake and tumour incidence. They also note that magnesium deficiency is linked to elevated free radicals and inflammatory mediators capable of causing oxidative DNA damage, and highlight secondary hypomagnesemia arising from certain anticancer therapies.
Why it matters
It outlines the dual and complex biological roles of magnesium in maintaining genomic stability versus supporting active cell proliferation in neoplastic tissue.
Limits
The abstract provides no quantitative metrics, search strategy, inclusion criteria, or risk of bias assessments. Findings are drawn from a heterogeneous mix of mechanistic, animal, and epidemiological studies with conflicting outcomes.
Cited by
- supports Magnesium acts as an essential cofactor for over 300 different enzymatic reactions in the human body and is required for DNA repair.