Duovit Vitamin D3 plus Vitamin K2 supplement with 100 softgels and promotional offer.
Duovit Vitamin D3 and Vitamin K2 supplement bottle with 100 softgels.
Duovit Vitamin D3 with Vitamin K2 supplement for bone, muscle, and wellness support.
Supplement facts for Duovit Vitamin D3 2000 IU and Vitamin K2 110 mcg softgels.
Man outdoors representing daily wellness routine with Duovit Vitamin D3 and Vitamin K2 supplement.

Vitamin D3 softgels with K2 to strengthen bones and the immune system

$19.99
SKU: 2134US
Vitamin D3 + K2 softgels with 2000 IU D3 and 110 mcg K2. Daily support formula, 100 softgels per bottle, easy once-daily use.
By Nutra LLC
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Description

Vitamin D3 + K2 combines two essential vitamins in a convenient daily softgel. Each serving provides 50 mcg (2,000 IU) of Vitamin D3 as cholecalciferol and 110 mcg of Vitamin K2, including menaquinone-7 (MK-7) and phytonadione.

This balanced formula is designed to support overall wellness as part of your daily routine. The oil-based softgel format allows for easy daily intake, with 100 servings per container, making it a long-lasting supplement option.
Details

- Form: Softgel
- Serving size: 1 softgel
- Servings per container: 100
- Vitamin D3 per serving: 50 mcg (2,000 IU)
- Vitamin K2 per serving: 110 mcg
- Daily supply: 100 days
Benefits

- Supports overall daily wellness
- Combines Vitamin D3 and Vitamin K2 in one formula
- Convenient once-daily softgel
- Long-lasting supply with 100 servings
Ingredients

Vitamin D3 (as cholecalciferol), Vitamin K2 (90 mcg as menaquinone-7 (MK-7) and 20 mcg as phytonadione).

Other ingredients: Virgin olive oil, beeswax, gelatin, glycerin, caramel color DS 400, titanium dioxide, red 40 lake, purified water.
How to use

Take one (1) softgel daily with a meal.

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Frequently Asked Questions

Why combine D3 and K2 in the same formula?
Vitamin D3 helps your body absorb calcium from food. That's the well-known part. Here's what most people don't know: without vitamin K2, that extra calcium can end up in the wrong places — like artery walls instead of bones. K2 acts as the "traffic director," guiding calcium into your bones and teeth where it belongs, and helping keep it out of soft tissues and blood vessels. Together, they work as a team. Separately, each is incomplete.
What's the MK-7 form of K2 — and why does it matter?
Our formula uses 90 mcg of K2 as MK-7 (menaquinone-7), plus 20 mcg as phytonadione. MK-7 is a longer-lasting form of K2 found naturally in fermented foods like natto. Because it stays active in the body longer than other forms, smaller doses are needed to achieve meaningful levels. It's the preferred form in most clinical research on K2 and bone health.
Is 2,000 IU of D3 too much — or not enough?
2,000 IU is a well-supported daily dose for most adults. It's above the outdated minimum RDA (600 IU) but well below the upper tolerable limit (4,000 IU for general use). The U.S. Dietary Guidelines recommend at least 800 IU for adults over 50. For most people who aren't getting regular sun exposure — which includes the majority of Americans — 2,000 IU is a practical, safe daily amount.
I take warfarin — can I still take this?
This formula contains vitamin K, which can interact with warfarin (Coumadin) and other anticoagulant medications. If you take blood thinners, please consult your doctor before adding this supplement. This is a genuine interaction — not a blanket disclaimer.
How long does it take to work?
Vitamin D levels in the blood typically take 4–6 weeks to meaningfully rise with consistent daily supplementation. For bone density changes, studies show results over months to years of consistent use. This is a long-term investment in your health — not a quick fix. Small steps, consistent habits.