Iron | SLC40A1 (rs11568350)

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.

Understanding Your SLC40A1 Result: How Ferroportin and Ferritin Affect Iron Balance

Iron is an essential mineral that supports oxygen transport in the blood, muscle function, hormone production, and immune health. Your SLC40A1 gene makes ferroportin, the only known protein that exports iron from intestinal cells and iron storage cells into the bloodstream. Variants in SLC40A1 can change how ferroportin works, sometimes causing iron to be retained inside cells and raising ferritin, the protein that stores iron. Elevated ferritin can indicate higher iron storage even when circulating iron appears normal. This article explains what those variants mean, how they may affect health, and practical steps you can take to maintain balanced iron levels.

How ferroportin and ferritin work together

• Ferroportin exports iron from intestinal cells and storage cells into the blood stream. Proper export keeps iron available where the body needs it.
• Ferritin stores iron inside cells. Higher blood ferritin usually means more iron is being stored in cells.
• When ferroportin function is reduced, iron can become trapped inside cells. That can raise ferritin even when circulating iron levels are not high.
• Balanced iron is important. Both iron deficiency and iron excess can negatively affect health.

Who should pay attention

People with family histories of iron overload, unexplained high ferritin, repeated abnormal liver tests, or symptoms like fatigue, joint pain, or metabolic concerns may want to monitor iron carefully. Even without high-risk genotypes, routine attention to iron intake and testing is helpful for long term health.

Genetic interpretations

The summary below explains typical genetic patterns for the SLC40A1 variant rs11568350 and their likely effect on ferritin and iron regulation. Use the accordion sections to read the interpretation that matches your genotype.

Diet recommendations

• Favor balanced meals with moderate amounts of iron rich foods. For most people that means including a variety of plant and animal protein sources rather than large daily portions of red meat.
• Pair non heme iron from plant foods with vitamin C to help controlled absorption when you want to increase iron uptake. Examples: spinach with lemon, beans with bell pepper.
• Limit foods and beverages that inhibit iron absorption during iron rich meals. Tea, coffee, high calcium foods or supplements can reduce absorption if consumed with the meal.
• Avoid taking iron containing supplements unless a clinician recommends them based on blood tests. Unnecessary supplementation can raise iron stores.
• Consider food preparation practices that moderate iron intake. For example, cooking in cast iron increases iron content of food; use sparingly if you are monitoring iron.

Supplement and nutrient considerations

• Do not start iron supplements without medical indication. If your ferritin is elevated, supplements can worsen iron overload.
• Vitamin C supports iron absorption when desired. If your ferritin is high, you may prefer to avoid extra vitamin C at meals that are high in iron.
• In some cases clinicians recommend substances that reduce iron absorption or increase iron removal. These must be prescribed and monitored by a healthcare professional.
• Ensure adequate intake of nutrients that support overall blood health such as B12, folate, and vitamin D but only supplement based on testing or clinical guidance.

Recommended lifestyle actions

• Schedule routine blood testing to monitor iron status. Key tests include ferritin, serum iron, transferrin saturation, and complete blood count. Frequency depends on your genotype, symptoms, and clinician guidance.
• Maintain a balanced diet and regular physical activity. Healthy lifestyle habits support metabolism and overall iron handling.
• If you have persistently elevated ferritin or symptoms suggestive of iron overload talk with your healthcare provider about additional evaluation, which may include liver tests and specialized iron studies.
• If family members have known iron overload conditions consider family screening and genetic counseling as appropriate.

When to talk to your healthcare provider

• Persistent high ferritin on blood tests
• Unexplained fatigue, joint pain, abdominal discomfort, or skin changes
• Family history of hereditary hemochromatosis or other iron disorders
• Before starting or stopping iron supplements or making major diet changes aimed at altering iron intake

Important notes and disclaimer

PlexusDx provides educational information about genetic predispositions only. This information is not medical advice. Genetic results are one piece of your health picture and should be interpreted together with clinical evaluation, blood tests, and family history. Always consult your healthcare provider before making changes to medications, supplements, or treatments, or before interpreting and acting on genetic or laboratory results.

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

🧬 Genetic Tests:

• Optimal Diet and Weight Loss Genetic Test
• Functional Health Genetic Test

🧪 Blood Tests:

• Nutrition Deficiency Blood Test

📄 Genetic Report:

• Diet and Nutrition Genetic Report

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Frequently Asked Questions About Iron and SLC40A1 rs11568350

What does the SLC40A1 rs11568350 variant mean for my ferritin and iron balance?

Your SLC40A1 gene helps regulate iron export through ferroportin, the body’s main iron exporter from intestinal and iron-storage cells into the bloodstream. With rs11568350 effect alleles, ferroportin may be less effective at exporting iron, which can cause iron to be retained inside cells and increase ferritin levels even when circulating iron looks normal. Higher ferritin can reflect increased iron storage, so balanced iron monitoring is important.

How do AA, AC, and CC genotypes for rs11568350 typically affect ferritin levels?

AA (2 effect alleles) is associated with higher ferritin, often suggesting more iron stored inside cells. AC (1 effect allele) is associated with likely higher ferritin, reflecting a partial shift toward cellular iron retention if ferroportin exports less efficiently. CC (0 effect alleles) is associated with typical ferroportin function and typical iron regulation, meaning you’re less likely to show the iron-accumulation pattern tied to effect alleles.

What diet and supplement steps can help support healthy iron levels if my ferritin is high?

Avoid starting iron supplements unless your clinician recommends them based on blood tests, especially if ferritin is elevated. Limit factors that inhibit or increase iron absorption based on your goals: be mindful of high-iron foods (especially large red meat portions), pair plant-based non-heme iron with vitamin C when you’re trying to raise intake, and avoid tea/coffee or high-calcium foods/supplements during iron-rich meals since they can reduce absorption. If ferritin remains persistently high or you have symptoms or a family history of iron overload, discuss further evaluation with your healthcare provider and consider monitoring tests like ferritin, serum iron, transferrin saturation, and a complete blood count.

What tests can help me learn more about Iron and SLC40A1 rs11568350?

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.

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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.