Vitamin A vs Vitamin K

TL;DR

Quick comparison: Vitamin A and Vitamin K have 0 overlapping categories and appear together in 16 products.

•Choose Vitamin A if: Fat-soluble vitamin essential for vision, immune function, and cellular communic...
•Choose Vitamin K if: Fat-soluble vitamin essential for blood clotting and bone metabolism. K1 from pl...
•Take both if: You want comprehensive coverage across 0 shared categories.

564 products

analyzed in our comprehensive supplement database

Source: MoodStack Database (2026)

Side-by-Side Comparison

Feature	Vitamin A	Vitamin K
Type	vitamin	vitamin
Common Dosage	700-900 mcg RAE daily	90-120 mcg daily
Best Bioavailability	Retinol (90%)	MK-7 (90%)
Categories	2	0
Available Products	0	0

Vitamin A

Typevitamin

Common Dosage700-900 mcg RAE daily

Best BioavailabilityRetinol (90%)

Categories2

Available Products0

Vitamin K

Typevitamin

Common Dosage90-120 mcg daily

Best BioavailabilityMK-7 (90%)

Categories0

Available Products0

Can You Take Both?

Yes, Vitamin A and Vitamin K can typically be taken together. In fact, we found 16 products in our database that contain both supplements, suggesting they complement each other well.

Key Differences

Vitamin A

Fat-soluble vitamin essential for vision, immune function, and cellular communication. Exists as preformed vitamin A (retinoids) in animal products and provitamin A (carotenoids) in plants.

Categories:

Immunity Skin, Hair & Nails

Common Forms:

• Retinol (90% bioavailability)
• Retinyl palmitate (85% bioavailability)
• Retinyl acetate (85% bioavailability)

Vitamin K

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

Categories:

Common Forms:

• MK-7 (90% bioavailability)
• MK-9 (85% bioavailability)
• MK-4 (75% bioavailability)

Products Containing Both Vitamin A and Vitamin K

We found 12 products that combine both supplements:

Transparent Labs Multivitamin

Transparent Labs

$44.99Score: 87/100

Multi for Him Tablets

Nature Made

$11.49Score: 86/100

Multi for Her 50+ Tablets

Nature Made

$12.99Score: 86/100

Essential Multivitamin

Momentous

$39.95Score: 86/100

Multi for Him 50+ Tablets

Nature Made

$12.99Score: 86/100

Prenatal Multi + DHA Softgels

Nature Made

$22.99Score: 86/100

Daily Multi Vitamins & Minerals

Kirkland Signature

$12.99Score: 85/100

Elite Multivitamin

Gorilla Mind

$44.99Score: 85/100

Multi for Her Tablets

Nature Made

$12.49Score: 84/100

mykind Organics Men's Multi

Garden of Life

$41.59Score: 84/100

Vitamin Code Raw One for Men

Garden of Life

$30.09Score: 83/100

Multivitamin Complete Tablets with Iron

Nature Made

$9.99Score: 83/100

Frequently Asked Questions

What is the difference between Vitamin A and Vitamin K?

Vitamin A and Vitamin K are both important supplements with distinct properties. Vitamin A Fat-soluble vitamin essential for vision, immune function, and cellular communication. Exists as preformed vitamin A (retinoids) in animal products and provitamin A (carotenoids) in plants., while Vitamin K Fat-soluble vitamin essential for blood clotting and bone metabolism. K1 from plants and K2 from bacteria and fermented foods..

Can I take Vitamin A and Vitamin K together?

Based on our analysis of 16 products that contain both, yes, Vitamin A and Vitamin K can typically be taken together. However, always consult with a healthcare provider before combining supplements.

Which is more popular: Vitamin A or Vitamin K?

In our database of 564 products, Vitamin A appears in 57 products, while Vitamin K appears in 20 products.

Related Comparisons & Products

What is Vitamin A?What is Vitamin K?Vitamin E vs Vitamin K Manganese vs Vitamin K Selenium vs Vitamin K 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.