Comparison

Vitamin K vs Magnesium

TL;DR

Quick comparison: Vitamin K and Magnesium have 0 overlapping categories and appear together in 12 products.

Choose Vitamin K if: Fat-soluble vitamin essential for blood clotting and bone metabolism. K1 from pl...
Choose Magnesium if: Essential mineral involved in over 300 enzymatic reactions including energy prod...
Take both if: You want comprehensive coverage across 0 shared categories.

565 products

analyzed in our comprehensive supplement database

Source · MoodStack Database (2026)

Side-by-side comparison

Feature	Vitamin K	Magnesium
Type	vitamin	mineral
Common Dosage	90-120 mcg daily	310-420 mg daily
Best Bioavailability	MK-7 (90%)	Magnesium Bisglycinate (85%)
Categories	0	7
Available Products	0	0

Vitamin K

Typevitamin

Common Dosage90-120 mcg daily

Best BioavailabilityMK-7 (90%)

Categories0

Available Products0

Magnesium

Typemineral

Common Dosage310-420 mg daily

Best BioavailabilityMagnesium Bisglycinate (85%)

Categories7

Available Products0

Can you take both?

Yes, Vitamin K and Magnesium can typically be taken together. In fact, we found 12 products in our database that contain both supplements, suggesting they complement each other well.

Key differences

Option A

Vitamin K

Fat-soluble vitamin essential for blood clotting and bone metabolism. K1 from plants and K2 from bacteria and fermented foods.

Common forms

MK-7 · 90% bioavailability
MK-9 · 85% bioavailability
MK-4 · 75% bioavailability

Option B

Magnesium

Essential mineral involved in over 300 enzymatic reactions including energy production, protein synthesis, muscle/nerve function, and blood pressure regulation.

Products with both Vitamin K and Magnesium

We found 11 products that combine both supplements:

Transparent Labs Multivitamin

87·Transparent Labs

Essential Multivitamin

86·Momentous

Prenatal Multi + DHA Softgels

86·Nature Made

Multi for Him Tablets

86·Nature Made

Multi for Him 50+ Tablets

86·Nature Made

Multi for Her 50+ Tablets

86·Nature Made

Elite Multivitamin

85·Gorilla Mind

Daily Multi Vitamins & Minerals

85·Kirkland Signature

Multi for Her Tablets

84·Nature Made

Multivitamin Complete Tablets with Iron

83·Nature Made

Daily Multivitamin for Women

54·Bloom Nutrition

Frequently asked

What is the difference between Vitamin K and Magnesium?

Vitamin K and Magnesium are both important supplements with distinct properties. Vitamin K Fat-soluble vitamin essential for blood clotting and bone metabolism. K1 from plants and K2 from bacteria and fermented foods., while Magnesium Essential mineral involved in over 300 enzymatic reactions including energy production, protein synthesis, muscle/nerve function, and blood pressure regulation..

Can I take Vitamin K and Magnesium together?

Based on our analysis of 12 products that contain both, yes, Vitamin K and Magnesium can typically be taken together. However, always consult with a healthcare provider before combining supplements.

Which is more popular: Vitamin K or Magnesium?

In our database of 565 products, Vitamin K appears in 20 products, while Magnesium appears in 82 products.

Related comparisons & products

What is Vitamin K?What is Magnesium?Selenium vs Vitamin K Selenium vs Magnesium Vitamin K vs Vitamin D Transparent Labs Multivitamin (contains both)Essential Multivitamin (contains both)Multi for Him Tablets (contains both)

Medical disclaimer: This content is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting any supplement regimen.