science Lab Test

Nutrition Panel: What Your Results Mean

A nutrition panel assesses the status of key nutrients that are frequently deficient and that have significant consequences for health. This panel measures albumin (a proxy for protein status and overall nutritional reserve), folate (vitamin B9, essential for DNA synthesis and cell division), zinc (a trace mineral critical for immune function, wound healing, and hormone production), vitamin D (essential for calcium absorption, bone health, and immune regulation), and vitamin B12 (essential for nerve function, red blood cell formation, and DNA synthesis). Deficiencies in these nutrients are common yet often asymptomatic until they have caused measurable harm.

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What It Tests

This panel measures albumin (reflecting overall protein synthesis capacity and chronic nutritional status), folate (serum folate status indicating recent dietary intake and absorption), zinc (serum zinc reflecting circulating zinc available for enzymatic and immune functions), vitamin D as 25-hydroxyvitamin D (the storage form that best reflects overall vitamin D sufficiency from both sun exposure and dietary sources), and vitamin B12 (serum cobalamin level reflecting absorption from food or supplements, dependent on intrinsic factor produced by the stomach).

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Why It's Ordered

A nutrition panel is ordered to assess nutritional status in patients with malabsorption syndromes (coeliac disease, Crohn's disease, bariatric surgery), vegetarians and vegans at risk of B12 and zinc deficiency, elderly patients with reduced intake and absorption, individuals with chronic fatigue, unexplained anaemia, neuropathy or mood disorders, patients on long-term medications affecting nutrient absorption (metformin, PPIs, methotrexate), and before and after bariatric procedures.

Markers in This Test

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Frequently Asked Questions

Which deficiency in this panel is most common? expand_more

Vitamin D deficiency is by far the most prevalent globally — estimates suggest over one billion people are vitamin D insufficient. Vitamin B12 deficiency is also extremely common, particularly in vegetarians, vegans, and the elderly. Folate and zinc deficiencies are common in populations with poor dietary variety or malabsorption. Albumin is typically low only in the context of significant illness or severe malnutrition.

Can I be deficient without symptoms? expand_more

Yes. Many nutritional deficiencies are subclinical — they impair physiological function before producing obvious symptoms. Vitamin D deficiency is often entirely asymptomatic until bone disease or immunological consequences develop. B12 deficiency may cause subtle neurological changes before anaemia appears. Blood testing is the only reliable way to detect these early deficiencies.

Should I stop supplements before a nutrition panel? expand_more

Ideally, yes — stopping supplements at least one to two weeks before testing gives a more accurate picture of your body's natural stores. However, your doctor may want to measure levels while on supplementation to check whether your current dose is achieving adequate status. Always inform your doctor of any supplements you are taking.

Why is albumin included in a nutrition panel rather than direct protein measurement? expand_more

Albumin is a reliable marker of chronic nutritional protein status — it reflects the liver's ability to synthesise protein over weeks to months. However, it is affected by inflammation (which suppresses albumin even if protein intake is adequate) and hydration status. Despite these limitations, it remains the most clinically practical surrogate marker of protein nutrition, especially in hospitalised or ill patients where measuring dietary intake is difficult.

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