Ingredient
Vitamin K
- Forms graded
- 24
- Dose zones
- 5
- Updated
- 1 Sept 2026
Every Vitamin K form, graded
24 forms scored on published absorption evidence. This is the comparison no supplement brand will publish about its own products.
- ×1.5Superior absorptionVitamin K2 MK-7, Vitamin K2 MK-7 (fermented)
- ×1.25Well absorbedVitamin K2 MK-4
- ×1Reference formMenaQ7® Matrix Vitamin K2, MenaQ7® Matrix Vitamin K2 (Vitamin K2), MenaQ7® (Vitamin K2), Menaquinona (Vitamina K2), Menaquinone 4, Phylloquinone, Vitamin K, Vitamin K1, Vitamin K1 & K2, Vitamin k2, Vitamin K2, Vitamin K2 (as Fermented Trans K2 (Menaquinone)), Vitamin K2 (MenaQ7), Vitamin K2 (MenaQ7®), Vitamin K2 (menaquinone), Vitamin K (Alfalfa concentrate), Vitamin K (as K1 & K2), Vitamin K (as Phytomenadione), Vitamin K (Menaquinone), Vitamin K (phylloquinone), Vitamin K (Phytomenadione)
- ×0.85Poor absorptionNone graded here
- Vitamin K2 MK-7Multiplier×1.5
- Vitamin K2 MK-7 (fermented)Multiplier×1.5
- Vitamin K2 MK-4Multiplier×1.25
- MenaQ7® Matrix Vitamin K2Multiplier×1
- MenaQ7® Matrix Vitamin K2 (Vitamin K2)Multiplier×1
- MenaQ7® (Vitamin K2)Multiplier×1
- Menaquinona (Vitamina K2)Multiplier×1
- Menaquinone 4Multiplier×1
- PhylloquinoneMultiplier×1
- Vitamin KMultiplier×1
- Vitamin K1Multiplier×1
- Vitamin K1 & K2Multiplier×1
- Vitamin k2Multiplier×1
- Vitamin K2Multiplier×1
- Vitamin K2 (as Fermented Trans K2 (Menaquinone))Multiplier×1
- Vitamin K2 (MenaQ7)Multiplier×1
- Vitamin K2 (MenaQ7®)Multiplier×1
- Vitamin K2 (menaquinone)Multiplier×1
- Vitamin K (Alfalfa concentrate)Multiplier×1
- Vitamin K (as K1 & K2)Multiplier×1
- Vitamin K (as Phytomenadione)Multiplier×1
- Vitamin K (Menaquinone)Multiplier×1
- Vitamin K (phylloquinone)Multiplier×1
- Vitamin K (Phytomenadione)Multiplier×1
Multipliers are applied to each ingredient's dose score when a product is graded. How multipliers are assigned.
How much Vitamin K should you take?
SuppScore grades doses across evidence zones rather than against a single recommended figure. Scored information, not a recommendation.
- Zone 10 to 19 µg per dayLow dose
- Zone 219 to 56 µg per dayGeneral maintenance dose
- Zone 356 to 75 µg per dayFor deficiency or elevated need
- Zone 475 to 150 µg per dayTherapeutic dose
- Zone 5150 to 360 µg per dayPractitioner-grade dose
Zones describe what the evidence supports at a dose. They are not advice on what to take, and they do not replace a conversation with a doctor or pharmacist.
What is Vitamin K good for?
Products containing Vitamin K
Scored products that list it on the label, highest scoring first. Ordering is by SuppScore only. We have no commercial relationship with any brand shown.
DR VEGAN
Vitamin D3 & K2 2500IU (63ug)
SuppScore 85
Bettervits
Bettervits Vitamin D3 & K2 | High Strength 4,000IU | With K2 Vitamin | Supports Immunity | Bones | E
SuppScore 84
Together Health
Vitamin D3 and Vitamin K2
SuppScore 84
Osavi
Vitamin D3 + K2 Oral Spray, Peppermint
SuppScore 80
Thorne
Women's Multi 50+
SuppScore 71
Holland & Barrett
Vitamin K2 + D3
SuppScore 70
LYMA
The LYMA Supplement
SuppScore 69
M J S Med
Vitamina D3 K2 MK-7 Goldmaster
SuppScore 69
Thorne
Women's Multi 50+
SuppScore 68References
Reviewed by the SuppScore advisory board
Every score on this page is computed from the SuppScore ingredient database using our published scoring rules. Our advisory board maintains those rules and the ingredient data behind them, and takes no payment from the brands whose products are scored.
Meet the advisory board · Last reviewed 1 Sept 2026
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