Compare Supplements

Side-by-side comparison of 2 supplements

MVI6.0

Multivitamin

High safety

Pnv7.0

Prenatal Multivitamin

Moderate safety

Evidence

Probably helps

Evidence Score6/10

Studies: 219

Meta-analyses: 18

Mostly mechanism / observational

Evidence Score7/10

Studies: 63

Meta-analyses: 7

Dosage & timing

Dosage:

1servings/day

Best Time:

With meals · with food

Take with food

Form:

Capsule or softgel

Dosage:

1 serving daily as labelled. The verified folic acid evidence rests on 400-800 mcg daily started before conception

Best Time:

With meals · with food

Take with food

Form:

A prenatal containing 400-800 mcg folic acid, started at least one month before conception

What you'll notice

🧠 Improved Memory in Older Adultspositive

3-6 months

🛡️ Reduced Infection Riskpositive

4-8 weeks

⚡ Increased Energy Levelspositive

2-6 weeks

🛡️ Prevents neural tube defectspositive

Requires pre-conception start

⚖️ Less low birthweightpositive

Across pregnancy

🩸 Less maternal iron-deficiency anaemiapositive

Across pregnancy

Safety

High safety

Contraindications:

Hemochromatosis or iron overload disorders (avoid iron-containing formulations)
Hypervitaminosis A (avoid high-dose vitamin A formulations)
Hypercalcemia (caution with high-dose calcium-containing MVIs)

Drug Interactions:

Warfarin (Coumadin)
Tetracycline antibiotics (doxycycline, minocycline)
Quinolone antibiotics (ciprofloxacin, levofloxacin)

Side Effects:

Nausea and GI upsetBright yellow/orange urine (riboflavinuria)Constipation

Moderate safety

Contraindications:

Products supplying more than 10,000 IU/day (3,000 mcg RAE) of preformed vitamin A (retinol) in pregnancy — this is the established Tolerable Upper Intake Level for preformed vitamin A, set by the IOM/NASEM and reaffirmed by EFSA in 2024, with teratogenicity as the designated critical effect
Concurrent use of a separate high-dose vitamin A supplement or prescription retinoid
Haemochromatosis or iron overload (iron-containing products)

Drug Interactions: