Why test RBC Magnesium instead of regular magnesium?

Serum magnesium only measures what's in your blood (1% of total body magnesium). RBC Magnesium measures what's inside your cells, giving a much more accurate picture of your true magnesium status.

Why is ferritin included if iron is already tested?

Iron levels fluctuate throughout the day, but ferritin reflects your total iron stores. You can have normal serum iron but low ferritin - meaning your reserves are depleted. Many people feel better when ferritin is above 50, even if technically "normal."

Should I stop supplements before testing?

It depends on your goal. To see your levels on your current regimen, continue supplements. To see your baseline without supplements, stop for at least 1 week (or 2-3 months for accurate ferritin after stopping iron).

How long does it take to correct deficiencies?

It varies. Vitamin D typically takes 2-3 months. B12 can improve within weeks but full repletion takes months. Ferritin is slow - expect 3-6 months with supplementation. Retest after 2-3 months to track progress.

Panel💊 Vitamins & Minerals

Vitamin & Mineral Panel - Essential Nutrient Testing

This panel tests the most commonly deficient nutrients: Vitamin D, B12, Folate, Iron (with complete iron studies), Ferritin, and Magnesium - the building blocks your body needs to function optimally.

Nutrient deficiencies are surprisingly common and cause symptoms that are often mistaken for other conditions. This panel covers the essential nutrients:

• Vitamin D - Deficient in 40%+ of Americans; affects bones, immunity, mood • Vitamin B12 - Essential for nerves, energy, and brain function • Folate - Critical for cell division and preventing birth defects • Iron & TIBC - Complete iron status including binding capacity • Ferritin - Your iron stores; often low even when iron is "normal" • Magnesium - It affects 300+ body functions

Identifying and correcting deficiencies can dramatically improve energy, mood, and overall health.

Panel Price

$62

Tests Included

Included Tests

Vitamin D, 25-Hydroxy

Measures vitamin D status. Deficiency is common and linked to bone health, immune function, and mood.

Vitamin D, 25-OH

$22

Vitamin B12

Measures B12 levels essential for nerve function, DNA synthesis, and red blood cell formation.

Vitamin B12

Folate, Serum

Measures folic acid levels important for cell division, DNA synthesis, and preventing birth defects.

Folate

Iron and Total Iron Binding Capacity

Comprehensive iron panel including serum iron, TIBC, and saturation percentage.

IronTIBCIron Saturation

Fasting

Ferritin

Measures iron storage protein. Best indicator of total body iron stores.

Ferritin

Magnesium, Serum

Measures magnesium in blood. Important for muscle, nerve, and heart function.

Magnesium

Fasting Required

One or more tests in this panel require fasting for accurate results:

Do not eat or drink anything except water for 8-12 hours before your blood draw.
Water is allowed and encouraged - stay hydrated!
Schedule your lab visit in the morning for convenience.

What This Panel Measures

This panel measures 6 essential nutrients: Vitamin D (25-hydroxy), Vitamin B12, Serum Folate, Iron with Total Iron Binding Capacity (TIBC) and saturation, Ferritin (iron storage), and Magnesium.

Who Should Get This Panel

Anyone with fatigue, brain fog, hair loss, or weakness. Also recommended for vegetarians/vegans (B12 deficiency risk), women with heavy periods (iron deficiency), older adults (B12 absorption decreases), those with limited sun exposure (Vitamin D), and anyone wanting to optimize their nutrition.

Health Insights

Conditions Screened

Vitamin D deficiencyB12 deficiencyIron deficiencyAnemiaFolate deficiencyMagnesium deficiencyMalabsorption

Related Symptoms

FatigueBrain fogHair lossWeaknessDepressionAnxietyRestless legsNumbness/tinglingPoor sleepFrequent illnessMuscle cramps

When to Get Tested

Fasting for 8 hours is required for accurate iron studies. Morning testing is ideal. Test before starting supplements to establish a baseline, and retest 2-3 months after starting supplementation.

Understanding Your Results

Optimal targets: Vitamin D 40-60 ng/mL, B12 >500 pg/mL, Folate >10 ng/mL, Ferritin 50-150 ng/mL, Iron saturation 25-45%, Magnesium 5.0-6.5 mg/dL. Lab "normal" ranges often include suboptimal levels that still cause symptoms.

Frequently Asked Questions

$62

Typical hospital cash price: $250–$600

+ $28 in standard lab & physician fees at checkout (no additional bills later)

$18 lab collection + $10 physician order

Results in 1-3 business days

6 tests included

Fasting required

Need Individual Tests?

You can also order any of these tests individually if you don't need the full panel.

Browse Individual Tests

$62