AI Vitamin Panel (D, B12, Iron) Analysis

Vitamin Panel analysis — free ai vitamin deficiency analyser

DrKumar.ai EditorialUpdated March 20264 min readReviewed by DrKumar medical team

Vitamin deficiencies are the most under-diagnosed cause of fatigue, brain fog, hair thinning, and mood disturbance in modern adults. Vitamin D and B12 deficiencies in particular are widespread — and easily reversible with supplementation. DrKumar.ai reads your vitamin panel, stages the deficiency, and tells you what to expect from supplementation.

Got the report? Skip the read.

Upload your vitamin panel — get every value explained in under 30 seconds.

Upload free
01

What a vitamin panel measures

A vitamin panel typically covers Vitamin D (25-hydroxyvitamin D), Vitamin B12 (cobalamin), folate, iron studies (serum iron, ferritin, TIBC, transferrin saturation), and sometimes Vitamin B6, magnesium, and zinc.

Vitamin D deficiency is the most common: 40–60% of adults in temperate climates are deficient or insufficient. Severity bands: • Deficient: < 20 ng/mL • Insufficient: 20–29 ng/mL • Sufficient: 30–50 ng/mL • Optimal: 40–60 ng/mL (some experts) • Toxic: > 100 ng/mL

B12 deficiency is common in older adults, vegetarians, and people on metformin or proton-pump inhibitors. Cut-offs vary by lab (200 vs 400 pg/mL) and the symptomatic threshold is often higher than the deficiency cut-off — many people have B12 in the "low-normal" range with deficiency symptoms.

Iron studies are interpreted as a panel — low ferritin with low transferrin saturation is iron deficiency; high ferritin with normal saturation is often inflammation; high ferritin with high saturation can indicate haemochromatosis.

02

Who needs this test

  • Anyone with persistent fatigue not explained by sleep, stress, or other obvious factors

  • Anyone living in a temperate climate or with limited sun exposure (office workers, hijab-wearers, darker skin)

  • Vegetarians and vegans — B12 deficiency risk is significant

  • Anyone on metformin, proton-pump inhibitors, or H2 blockers long-term — all impair B12 absorption

  • Women of reproductive age, pregnant women, athletes — iron deficiency risk groups

  • Older adults — vitamin D and B12 absorption decline with age

03

How DrKumar.ai reads your vitamin panel

Upload your vitamin panel. DrKumar.ai stages each deficiency (deficient / insufficient / sufficient / optimal), explains common causes for your specific pattern, and gives evidence-based supplementation guidance — typical doses, expected timeline to repletion, and when to re-test.

For Vitamin D specifically, the AI accounts for the well-documented lab-to-lab variability in 25-OH-D assays (results can differ 10–20% across labs for the same blood sample). For B12, it flags when the value is in the "low-normal" range that often warrants supplementation despite being labelled "normal".

If you've uploaded prior reports, the trend view is especially useful for vitamin supplementation — D and B12 take 6–12 weeks of consistent supplementation to fully reflect in blood levels, and the trend confirms whether your dose is sufficient.

VITAMIN D (25-OH VITAMIN D) · ng/mL
Every vitamin panel you upload is plotted against the normal-range band so you see whether you're drifting, responding, or stable.

Sample analysis output

What the AI returns for typical values

MarkerValueVerdictDrKumar interpretation
Vitamin D (25-OH)16 ng/mL Below rangeDeficient (< 20 ng/mL). Typical correction: 2000–4000 IU/day for 8–12 weeks, then re-test.
Vitamin B12245 pg/mL BorderlineLow-normal range. Even with "normal" lab cut-off (200 pg/mL), symptomatic deficiency is possible below 400 pg/mL. Consider methylcobalamin supplementation if symptoms present.
Folate9.2 ng/mL NormalSufficient. Folate fortification of grains has made deficiency rare in fortified-food countries.
Ferritin18 ng/mL Below rangeBelow the 30 ng/mL functional threshold. Iron deficiency likely even without anaemia — "latent iron deficiency" is a common fatigue cause.
04

Biomarkers in this panel

Each one has a dedicated guide explaining what it measures, how to interpret values, and what affects it.

After the analysis

Talk to the coach that uses this panel

Try it yourself

Get your vitamin panel explained in seconds.

Drop in the PDF your lab emailed you, or snap a photo of a printed report. DrKumar.ai reads every value and gives you a personalised, longitudinal health story. No credit card. No download.

05

Reader questions

How much Vitamin D should I supplement?
If deficient (< 20 ng/mL): 4000 IU/day for 8–12 weeks, then re-test and switch to a 1000–2000 IU/day maintenance dose. If insufficient (20–29 ng/mL): 2000 IU/day. If sufficient (30+ ng/mL): 1000 IU/day maintenance, especially in winter months. Higher doses warrant clinician oversight to avoid hypercalcaemia.
Why is my B12 "normal" but I have symptoms?
Lab cut-offs for B12 deficiency (typically 200 pg/mL) are set low. Many people with B12 in the 200–400 pg/mL range have symptomatic deficiency that improves with supplementation. Methylmalonic acid (MMA) and homocysteine tests can confirm functional deficiency when total B12 is borderline.
Should I take iron without testing first?
No. Iron supplementation without confirmed deficiency can cause GI side effects and, in people with haemochromatosis (1 in 200 of European descent), can be actively harmful. Always confirm iron deficiency with ferritin and transferrin saturation before supplementing.
How long until supplementation shows in blood tests?
Vitamin D: 8–12 weeks to reach steady state after a daily dose change. B12: 6–12 weeks for total B12; longer for MMA normalisation. Iron: 8–12 weeks to raise haemoglobin; ferritin replenishment can take 3–6 months.

More AI lab analysis

Other tests DrKumar.ai analyses

Disclaimer: DrKumar.ai is an educational platform and not a substitute for professional medical advice, diagnosis, or treatment. Reference ranges and interpretations are general guidance — always consult a qualified healthcare provider for decisions about your health.