Vitamin D+K


Vitamin D controls the expression of 200+ genes, touching nearly every cell in our bodies. Yet more than 40% of Americans are deficient in this essential vitamin. The Lifeforce D+K formula, the only one of its kind to feature ampli-D®, is clinically proven to raise vitamin D levels three times faster than regular vitamin D supplements. Lifeforce D+K delivers the most bioavailable and bioactive form of supplemental vitamin D to bolster bone health, immune, and neurological function.

  • Features vitamin K2 to help ensure calcium is deposited safely into bones
  • Supports bone health, immune response, and cognitive function
  • Features vitamin K2 to help ensure calcium is deposited safely into bones
HSA/FSA-eligible with.

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Vitamin D+K


  • Vitamin D (calcifediol) (as ampli-D®): 20 mcg (2400 IU) 300% DV

  • Vitamin K activity: 300 mcg 250%



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Strong Bones and Body

It’s estimated that up to 40% of American adults are insufficient, and 6% are full-on deficient in vitamin D. Vitamin D deficiency can lead to tiredness, back pain, and brittle bones. Contrary to popular belief, getting a few minutes in the sun every day is unlikely to sustain optimal levels, especially as you get older and your skin becomes less efficient at converting sunlight. Same goes for eating vitamin D-rich foods like egg yolks (you'd need 16 eggs a day to hit the recommended dosage). Standard vitamin D supplements will take 8-12 weeks to begin improving your levels. That's potentially an extra three months of living below your best. We created Lifeforce Vitamin D+K using a newly discovered form of vitamin D that will get most people optimized in three to five weeks.

Vitamin D+K Supports Key Biomarkers

Discover which biomarkers matter the most to you for only $549

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3X Faster Absorption

Exclusively available in our Lifeforce Vitamin D+K formula, ampli-D® corrects deficiency 3x faster than regular vitamin D supplements

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Calcium for healthy bones

K2Vital® is the purest, most active, and proven safe vitamin K2 and helps to ensure calcium is deposited safely into bones


Supports Heart Health

K2Vital® activates Gla protein, which is one of the strongest inhibitors of blood vessel calcification and arterial stiffness