i-Screen Red Cell Minerals Check
Type
Blood Testing
Biomarkers
12
Duration
30 min
Results
4 days
Measures minerals in red blood cells to assess long-term nutritional status and identify chronic deficiencies or imbalances.
Vitamin and nutrient testing measures the levels of essential micronutrients in your blood — vitamins, minerals, and trace elements that your body needs in small amounts but cannot function without. Common tests include B12 (critical for nerve function and red blood cell production), folate (essential for DNA synthesis and especially important in pregnancy), zinc (immune function, wound healing), magnesium (involved in 300+ enzymatic reactions), and selenium (thyroid function, antioxidant defense). Deficiencies are more common than most people realize, particularly in B12 (affecting up to 20% of older adults), vitamin D, iron, and magnesium. Symptoms are often vague — fatigue, brain fog, poor sleep — making testing the only reliable way to identify specific gaps.
Key Details
Who Is This For?
Vegetarians and vegans (at higher risk of B12, iron, and zinc deficiency). Older adults, as nutrient absorption decreases with age. Anyone on restrictive diets or with digestive conditions affecting absorption. People experiencing unexplained fatigue, brain fog, poor wound healing, or hair loss. Athletes with high nutrient demands from training.
What's Included
Preparation Required
Fasting for 8–10 hours is recommended for some nutrient tests but not all — check with your provider. Continue taking your regular supplements unless told otherwise (the test measures your steady-state levels). Morning draws are preferred for consistent results.
Biomarkers Tested
12An essential trace mineral in its trivalent form (Cr³⁺), important for insulin signalling and glucose metabolism. Hexavalent chromium (Cr⁶⁺) from industrial exposure is carcinogenic. Testing measures total chromium levels.
Component of vitamin B12, essential for red blood cell formation and nerve function.
Essential for thyroid hormone production and overall metabolic regulation.
An essential trace mineral needed for bone formation, blood clotting, and antioxidant defense (via superoxide dismutase). Excess manganese, typically from occupational inhalation, causes manganism — a Parkinson's-like neurological condition.
Trace mineral involved in enzyme function and metabolism.
A trace mineral crucial for thyroid hormone metabolism, antioxidant defense (via selenoproteins), and immune function. Selenium deficiency can impair thyroid function and increase susceptibility to viral infections.
Trace mineral with potential roles in glucose metabolism and energy production.
A trace mineral essential for iron metabolism, connective tissue formation, and antioxidant defense. The copper/zinc ratio is an emerging marker of inflammation and oxidative stress. Both deficiency and excess can cause problems.
Involved in over 300 enzymatic reactions including energy production, muscle function, and nerve signaling. Magnesium deficiency is common and associated with muscle cramps, anxiety, insomnia, and increased cardiovascular risk.
An essential trace mineral involved in immune function, wound healing, DNA synthesis, and testosterone production. Zinc deficiency impairs immune response, delays wound healing, and can cause hair loss and taste changes.
Essential for nerve function, DNA synthesis, and red blood cell formation. B12 deficiency can cause anemia, neuropathy, fatigue, and cognitive impairment. Common in vegans, vegetarians, older adults, and those taking metformin or acid-reducing medications.
Essential for DNA synthesis, cell division, and red blood cell formation. Folate deficiency causes megaloblastic anemia and, during pregnancy, increases the risk of neural tube defects. Works closely with vitamin B12.
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- Category
- Diagnostic
- Sample Type
- Blood draw
- Duration
- 30 min
- Results
- 4 days
i-Screen
i-Screen is an Australian health service offering blood testing and analytics to help individuals understand and monitor their health through personalized online dashboards.
