Supplement · Bones, Heart & Immunity
Vitamin D3 & K2
Personal recommendation by Marshall Delpé. Not made by Marshalldelpe.com.
Vitamin D3 & K2
Supplement · Bones, Heart & Immunity·
Bottled sunshine for those of us who live indoors under hospital lights.
What it does: Vitamin D3 helps the body absorb calcium and supports bone health, immune function, mood and muscle strength. Vitamin K2 (especially the MK-7 form) activates proteins that help direct that calcium into bones and teeth rather than leaving it in arteries and soft tissue. Taken together, they work as a team.
Who it's for: People who get little direct sunlight — indoor workers, night-shift workers, people in northern latitudes or with darker skin — and anyone whose blood work shows low vitamin D.
Why I use it: Night shifts and indoor work mean I see far less sun than my body expects. Vitamin D deficiency is extremely common, cheap to test for and cheap to fix. Pairing D3 with K2 makes sense to me because it supports where the extra calcium actually ends up. I take NOW Vitamin D-3 & K-2 capsules: an affordable, reliable everyday dose from the same company I get most of my supplements from.
Tradeoffs: More is not better: vitamin D is fat-soluble and can build up to toxic levels at high doses, so get a 25-hydroxy vitamin D blood test and dose to your results. Vitamin K affects blood clotting and can interfere with warfarin and similar medications — check with your doctor if you take them.
Alternatives: Sensible daily sun exposure, separate D3 and K2 supplements so you can dose each independently, and foods such as fatty fish, egg yolks, natto and aged cheeses.
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As an Amazon Associate I earn from qualifying purchases, at no extra cost to you. I only recommend what I actually use.
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As an Amazon Associate I earn from qualifying purchases, at no extra cost to you. I only recommend what I actually use.