The Absorption Company
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Vitamin D3+K2

Engineered for 1.9× more absorption, supporting bone strength, immune function, and cardiovascular protection—even when taken without food.
Why Our Vitamin D3+K2 Works Better*
1.9x
greater absorption vs. standard oil-based vitamin D3*
*Based on human bioavailability testing of the Absorb More formulation.
5,000IU
of comparable D3 potency per capsule due to enhanced absorption*
100mcg
of MK-7 vitamin K2 to activate proteins that guide calcium to bones*
Benefits
Stronger bones for life*
D3 unlocks calcium from your food; K2 escorts it into bones instead of your arteries.*
Immune resilience every season*
Vitamin D activates the immune cells that keep viruses and infections in check.*
Sharper mood, brighter baseline*
Optimal D3 levels are linked to steadier mood, sharper focus, and clearer thinking.*
Heart and artery protection*
MK-7 activates the proteins that keep arteries flexible instead of calcified.*
Muscle strength and hormone balance*
Vitamin D drives muscle contraction, testosterone signaling, and healthy insulin response.*
Users also reported
Steadier energy throughout the day*
Less bloating after meals*
Improved cholesterol levels*
Better portion control*
Reduced stress-related cravings*
Improved body composition*
*Self-reported by Berberine users. Individual results may vary. *Based on human trials of the FenuMat® formulation.

Vitamin D3 + K2: Bone & Immune Support

Engineered for 1.9× more absorption, supporting bone strength, immune function, and cardiovascular protection—even when taken without food.
Steadier energy and a brighter baseline, every day
Stronger bones, sharper mood, immune system that shows up
Absorbs without food, so one capsule fits any routine
Age on your terms, with K2 guiding Calcium to your bones instead of your arteries

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Update, pause, or cancel anytime
FREE shipping ($7 value)
Get 3 FREE gifts valued at $70
25% off today
Update, pause, or cancel anytime
FREE shipping ($7 value)
Get 3 FREE gifts valued at $70

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30-day money-back guarantee
HSA/FSA Eligible
Why Our Vitamin D3+K2 Works Better*
1.9x
greater absorption vs. standard oil-based vitamin D3*
*Based on human bioavailability testing of the Absorb More formulation.
5,000IU
of comparable D3 potency per capsule due to enhanced absorption*
100mcg
of MK-7 vitamin K2 to activate proteins that guide calcium to bones*
Benefits
Stronger bones for life*
D3 unlocks calcium from your food; K2 escorts it into bones instead of your arteries.*
Immune resilience every season*
Vitamin D activates the immune cells that keep viruses and infections in check.*
Sharper mood, brighter baseline*
Optimal D3 levels are linked to steadier mood, sharper focus, and clearer thinking.*
Heart and artery protection*
MK-7 activates the proteins that keep arteries flexible instead of calcified.*
Muscle strength and hormone balance*
Vitamin D drives muscle contraction, testosterone signaling, and healthy insulin response.*
Users also reported
Steadier energy throughout the day*
Less bloating after meals*
Improved cholesterol levels*
Better portion control*
Reduced stress-related cravings*
Improved body composition*
*Self-reported by Berberine users. Individual results may vary. *Based on human trials of the FenuMat® formulation.

Take 2 capsules daily with food. Each dose delivers ~1,500 mg absorbed-equivalent berberine via our FenuMat® hybrid-hydrogel system, which provides sustained release across the day for steady blood-sugar support. Berberine is a long-game metabolic reset, so consistency is what drives results.*

Part of the Hormone + Metabolism Stack

Berberine, Calm, and Vitamin D3+K2 work together to moderate blood sugar, increase metabolism, and balance hormones.
Third Party Tested
Capsoil Enhanced Absorption
Glyphosate residue-Free
Benefits Absorption What to Expect Experts Ingredients FAQs
Vitamin D3+K2

Vitamin D3+K2

1 Bottle

Why Our Vitamin D3 + K2 Works Better.

1.9x Better Absorption

​​Get high-dose results with just 2,600 IU—more absorbed, less wasted.

Absorbs Without Food

Formulated to not require dietary fat, so you get consistent Vitamin D every day.

Steady Energy & Mood

Helps mood feel lighter and energy more stable—especially in low-sun months.

Stronger Bones

K2 sends calcium into bones, not arteries, for long-term bone health benefits.

Promotes immunity

Better immunity through seasonal shifts and everyday stress.

Less Muscle Fatigue

Feel less worn down after activity with better Vitamin D status.

"I feel like I have more energy and overall feel better since trying this" -Nicole J.

Backed by Experts.

“The lack of consistency in supplement absorption has been a huge issue in the industry. I am grateful to be part of a team that is dramatically improving the quality and absorption of supplements and botanicals.”

Chief of Pediatric Nephrology at Dartmouth Children’s Hospital

“When it comes to supplementation, bioavailability matters - you want supplements that work. The Absorption Company's commitment to using cutting-edge technology to create highly absorbable supplements -- with results you can feel -- deeply resonates with me."

Holistic Health Coach and Founder of Clean Market

“Given the widespread availability of supplements with limited absorption rates, it is so important to emphasize formulations designed to maximize bioavailability. [The Absorption Company] ensures individuals receive the full spectrum of nutrients they need for optimal well-being.”

IFMCP, DNM, DC
780 clinicians share The Absorption Company on FrontrowMD without compensation.
Learn more.

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