HSA | FSA CARDS ARE NOW ACCEPTED

Last reviewed: May 12, 2026 Last updated: May 12, 2026

Written by: Jay Hastings , CEO of PlexusDx

Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations. He has more than 20 years of experience across healthcare innovation, genomics, laboratory operations, healthcare investing, and strategic finance. His work has included scaling healthcare startups, leading CLIA lab integrations, and helping expand consumer access to precision health tools.

Medically reviewed by: Jayden Lee, PharmD, EMBA

Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development, with a proven ability to bridge the gap between genomic research and practical patient outcomes. Dr. Lee has more than 10 years of professional experience in clinical pharmacy, academia, and research.

How TRPM6 and Magnesium Work Together

Magnesium is an essential mineral that supports more than 300 biochemical reactions in the body, including energy production, muscle and nerve function, bone strength, and blood sugar regulation. The TRPM6 gene makes a protein that helps absorb magnesium in the intestines and reabsorb it in the kidneys. Variations in TRPM6 can change how efficiently your body transports magnesium, which may influence blood magnesium levels and related health risks.

Why This Matters for Health

If genetic changes make TRPM6 less effective, magnesium absorption can be lower. Chronically low magnesium is linked to higher risk of developing type 2 diabetes and, in pregnant people, a higher risk of gestational diabetes—especially when dietary magnesium intake is insufficient. Knowing your TRPM6 genotype can help you tailor diet, supplementation, and lifestyle choices to support healthy magnesium levels.

Two effect alleles (CC) — higher chance of lower magnesium

If your genotype is CC for rs2274924, you carry two copies of the effect allele. This genotype is associated with reduced TRPM6 function compared with the common form and tends to be linked with lower magnesium levels on average.

Potential implications

  • Higher likelihood of lower circulating magnesium, especially if dietary intake is low
  • Increased risk of developing type 2 diabetes in the presence of inadequate magnesium
  • Higher risk of gestational diabetes during pregnancy with insufficient magnesium intake

Practical strategies

  • Prioritize magnesium-rich foods at every meal: leafy greens (spinach, Swiss chard), nuts and seeds (almonds, pumpkin seeds), legumes (black beans, lentils), whole grains (quinoa, brown rice), and fatty fish (mackerel, salmon)
  • Discuss magnesium supplementation with your healthcare provider if dietary intake is inconsistent or blood tests show low levels. A clinician can recommend a form and dose that suits your needs
  • Monitor caffeine and alcohol intake since both can increase magnesium loss in urine when consumed in excess
  • Maintain a balanced weight and regular physical activity to help metabolic health and reduce diabetes risk
One effect allele (CT) — likely modestly lower magnesium

If your genotype is CT for rs2274924, you carry one copy of the effect allele. This pattern is associated with a moderate tendency toward lower magnesium compared with the typical genotype.

Potential implications

  • Modest reduction in average magnesium levels, which becomes more relevant if dietary intake is low
  • Possible increased susceptibility to type 2 diabetes and gestational diabetes when magnesium is inadequate

Practical strategies

  • Eat a magnesium-focused diet regularly, including leafy greens, seeds, nuts, legumes, whole grains, and fish
  • Consider a low-dose magnesium supplement if diet alone does not meet needs; review options like magnesium glycinate or citrate with your healthcare provider
  • Support absorption by keeping vitamin D levels adequate and avoiding excessive calcium or high-dose zinc taken at the same time as magnesium
  • Reduce lifestyle factors that increase magnesium loss: limit heavy alcohol use, avoid excessive processed foods, and moderate high caffeine intake
No effect alleles (TT) — typical magnesium handling

If your genotype is TT for rs2274924, you carry two copies of the common, non-effect allele. This genotype is associated with typical TRPM6 function and likely normal magnesium absorption and reabsorption when dietary intake is adequate.

Potential implications

  • Standard capacity to maintain magnesium levels with a balanced diet
  • Still possible to become magnesium deficient through low intake, certain medications, or health conditions

Practical strategies

  • Keep consuming magnesium-rich foods routinely to support the many processes magnesium supports
  • Be mindful of medications or health conditions that affect magnesium (for example, prolonged diuretic use or gastrointestinal disorders)
  • Get regular checkups and consider blood testing if you have symptoms of low magnesium or conditions that increase magnesium loss

Dietary Guidance — Foods to Prioritize

  • Leafy green vegetables: spinach, Swiss chard, kale
  • Nuts and seeds: almonds, cashews, pumpkin seeds, chia seeds
  • Legumes: black beans, kidney beans, lentils
  • Whole grains: brown rice, quinoa, oats
  • Fish: salmon, mackerel, halibut
  • Fortified foods and certain dairy alternatives can contribute in smaller amounts

Supplement Options and Considerations

If dietary intake is insufficient, supplementation can help. Common forms include magnesium citrate, glycinate, malate, and oxide. Magnesium glycinate is often better tolerated with fewer digestive side effects. Magnesium citrate can act as a mild laxative in higher doses. Your healthcare provider can suggest a suitable form and dose based on your needs, medications, and kidney function.

Lifestyle and Other Practical Tips

  • Limit excessive alcohol and high caffeine intake to reduce urinary magnesium loss
  • Maintain regular physical activity to support metabolic health and insulin sensitivity
  • Aim for a varied diet rather than relying on one food source
  • Avoid taking high-dose calcium or zinc supplements at the same time as magnesium; space them out to improve absorption
  • If pregnant or planning pregnancy, discuss magnesium needs with your provider since gestational demands can change requirements

When to Check Blood Levels and Other Tests

Consider testing serum magnesium if you have symptoms suggestive of low magnesium (muscle cramps, weakness, irregular heartbeat), have risk factors such as gastrointestinal disease or diuretic use, or if you are pregnant and concerned about gestational diabetes risk. Note that serum magnesium reflects a small portion of total body magnesium. Your clinician may also look at related markers such as blood glucose, HbA1c, and kidney function to guide care.

Limitations and Next Steps

Genetic results indicate predisposition, not destiny. A TRPM6 variant associated with lower magnesium increases the chance of lower levels but does not guarantee deficiency. Diet, medications, other genes, and health conditions all influence magnesium status. Use this information as one piece of your wellness picture and consider targeted changes in diet and lifestyle or testing as appropriate.

PlexusDx does not provide medical advice. This information is educational and about genetic predispositions only. Always consult your healthcare provider before starting supplements, changing medications, or making significant diet or lifestyle changes. Your provider can help interpret genetic results alongside clinical history, symptoms, and lab tests to create a personalized plan.

If this genetic variant is present in your PlexusDx results, the following tests and reports are commonly used to explore it further:

🧬 Genetic Tests:

🧪 Blood Tests:

📄 Genetic Report:

Frequently Asked Questions About Magnesium and TRPM6 rs2274924

How does the TRPM6 gene affect magnesium levels?

TRPM6 helps your body absorb magnesium in the intestines and reabsorb it in the kidneys. Variations in TRPM6 can change how efficiently magnesium is transported, which may influence your circulating blood magnesium levels and related health risks.

What does an rs2274924 CC, CT, or TT genotype mean for magnesium deficiency risk?

For rs2274924, CC (two effect alleles) is associated with reduced TRPM6 function and a higher chance of lower magnesium, especially when dietary magnesium is low. CT (one effect allele) may be linked to a modest tendency toward lower magnesium. TT (no effect alleles) is associated with typical TRPM6 function and more normal magnesium handling, assuming adequate intake.

What should I do if I’m concerned about low magnesium due to my TRPM6 results?

Prioritize magnesium-rich foods (leafy greens, nuts and seeds, legumes, whole grains, and fish), consider magnesium supplementation if intake is inconsistent or blood tests are low (with your healthcare provider), and moderate caffeine and alcohol to reduce urinary magnesium loss. If you have symptoms of low magnesium or risk factors (such as GI conditions or diuretics), ask about serum magnesium testing, and discuss gestational diabetes risk if you are pregnant or planning pregnancy.

What tests can help me learn more about Magnesium and TRPM6 rs2274924?

The Optimal Diet and Weight Loss Genetic Test delivers over 295 genetic insights related to nutrition response, body composition, metabolism, and fitness. The Diet and Nutrition Genetic Report translates your results into personalized, actionable guidance. Your healthcare provider can also recommend targeted blood tests based on your specific pathway results and health history to complement your genetic insights with current biomarker data.

Medical and Editorial Standards

Medical review process: This article was reviewed for medical accuracy, scientific clarity, evidence alignment, and appropriate discussion of genetics, medications, supplements, biomarkers, and health-related claims.

Sources and evidence: PlexusDx educational content is developed using peer-reviewed research, clinical literature, reputable medical references, and, where applicable, public health or regulatory guidance. References are included at the end of the article when scientific, medical, or health-related claims are discussed.

Commercial transparency: PlexusDx offers genetic testing, blood biomarker testing, personalized supplement recommendations, and related precision wellness services. Product mentions are intended to help readers understand available options and should not be interpreted as medical advice.

Important disclaimer: PlexusDx educational content is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about medications, supplements, genetic testing, lab testing, or health-related care.