NOW Foods
Mega D3 & MK-7
77/100
SUPPIE SCORE
75/100
EFFICACY
Medium
SAFETY
94/100
CLEANLINESS
What Does Mega D3 & MK-7 Do?
NOW Foods Mega D3 & MK-7 provides 5000 IU (125 mcg) vitamin D3 and 100 mcg vitamin K as MK-7 per capsule. This high-dose D3 pairing is commonly used for bone and cardiovascular support.
What is the best time of day to take this D3 and MK-7 supplement?
How does the 5000 IU D3 dose compare to typical recommendations?
Is this product suitable if I am already taking a multivitamin with vitamin D and K?
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What Are the Benefits of Mega D3 & MK-7?
Based on proven scientific research
Bone health supportStrong
Cardiovascular functionModerate
Immune functionModerate
Good For:
What Are the Side Effects of NOW Foods Mega D3 & MK-7?
Always consult your health practitioner if in doubt.
RiskMedium Risk
Overview
•Vitamin D3 at 5000 IU (125 mcg) per capsule exceeds typical daily needs and may risk hypercalcemia with long-term use without monitoring.
•Vitamin K as MK-7 at 100 mcg supports bone and heart health but consult physician if taking blood-thinning medications.
•Contains allergens: milk, fish, and shellfish; not suitable for those with these allergies.
•Discontinue use two weeks prior to surgery.
Potential Side Effects
Negative Interactions
Allergens
MilkFishShellfish
Inactive Ingredients
Hypromellose (cellulose capsule)
Low RiskRice flour
Low RiskStearic acid (vegetable source)
Low RiskSilicon dioxide
Low RiskWhat Are the Ingredients in NOW Foods Mega D3 & MK-7?
Vitamin D3 (Cholecalciferol)
5000 IU
Vitamin K (as MK-7)
100 mcg
Hypromellose (cellulose capsule)
Rice flour
Stearic acid (vegetable source)
Silicon dioxide
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Dosage & Bioavailability
How the active doses and forms in Mega D3 & MK-7 compare to the research.
•Vitamin D3 (Cholecalciferol) is listed at 5000 IU per serving; without a source-specific reference range, dose adequacy cannot be graded.
•Vitamin K (as MK-7) is listed at 100 mcg per serving; without a source-specific reference range, dose adequacy cannot be graded.
Sources & References
Frequently Asked Questions
Common questions about NOW Foods Mega D3 & MK-7