| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin D3(Cholecalciferol) | 125 mcg | 625% |
| Vitamin K2(as menaquinone-7, MK-7) | 100 mcg | ** |
| Calcium(As Calcium Carbonate) | 210 mg | 16% |
| BioPerine®(Black Pepper Fruit Extract) | 5 mg | ** |
** Daily Value not established.
Other ingredients: Microcrystalline Cellulose, Hypromellose (vegetable capsule).
For the first hour
The pair that puts calcium where it belongs.*
5,000 IU D3 · 100 mcg K2 (MK-7) · 60 capsules
$29.00Launch price. $32 from January 15
What it supports
Vitamin D3 helps your body absorb calcium. Vitamin K2 activates the proteins that help direct it into bone. Cellovi D3 + K2 combines 5,000 IU (international units) of D3 with 100 mcg of K2 as MK-7 (menaquinone-7), the long-acting form, in one capsule a day.*
Your ritual
Breakfast now. The game in the garden later.
The 4 key studies behind this grade are below: who took part, how much, and for how long.
Consistent results across many well-run human trials. As close to settled as nutrition gets.
Supports bone health
EstablishedKey studies
Every study behind this grade, explained · Reviewed October 2026 by the Cellovi team
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin D3(Cholecalciferol) | 125 mcg | 625% |
| Vitamin K2(as menaquinone-7, MK-7) | 100 mcg | ** |
| Calcium(As Calcium Carbonate) | 210 mg | 16% |
| BioPerine®(Black Pepper Fruit Extract) | 5 mg | ** |
** Daily Value not established.
Other ingredients: Microcrystalline Cellulose, Hypromellose (vegetable capsule).
With breakfast
Vitamin D3 + K2
1 capsule a day with breakfast, or up to 30 minutes before, as on the label. A meal with some fat, like eggs, yogurt or avocado, helps absorption, because vitamin D is fat-soluble. Take it at the same time each day.
Timelines come from the human studies. What counts is consistency: in one study of 96 adults, a new daily habit took 66 days on average to feel automatic (Lally et al., 2010). Pair it with something you already do every day. Your first order comes with our 60-day first-order guarantee. How it works
Adults who spend most days indoors or live through long winters, and want strong bones for the decades ahead.*
Ask your pharmacist or doctor first if you take:
Check with your doctor first if you:
Not a complete list. Show your pharmacist everything you take, including other supplements. Sources: NIH Office of Dietary Supplements, vitamin D; NIH ODS, calcium; Schurgers et al., 2007.
Vitamin K2 can affect blood-thinning medication such as warfarin. 5,000 IU is a high-potency daily dose, popular with people who get little sun. It is above the 4,000 IU upper limit set for the general public, so if you also take other vitamin D, including Immune Support Complex, check your total with your doctor. Consult your doctor before use if you are pregnant, nursing, under 18, or have a medical condition.
Do not exceed the recommended dose. Keep out of reach of children. Store in a cool, dry place. Do not use if the safety seal is damaged or missing.
Report a reaction: safety@cellovi.com
The supplement aisle runs on small print. Here is ours, in large print.
| What matters | Cellovi Vitamin D3 + K2 | Many supplement brands |
|---|---|---|
| Evidence | Cellovi Vitamin D3 + K2: Every claim graded Established, Growing or Frontier | Many supplement brands: Claims are rarely graded for strength of evidence |
| Proof | Cellovi Vitamin D3 + K2: Key studies on the page: who took part, how much they took, what changed | Many supplement brands: Some pages link no studies or don’t state amounts |
| Label | Cellovi Vitamin D3 + K2: Supplement Facts as text you can read | Many supplement brands: Some show them only as an image |
| Your day | Cellovi Vitamin D3 + K2: When to take it, with a simple ritual to make it stick, and a full-day guide | Many supplement brands: Most give a dose, not a place in your day |
| First order | Cellovi Vitamin D3 + K2: 60-day first-order guarantee | Many supplement brands: Many take back only unopened bottles, or charge a fee |
Based on our review of 12 supplement brands’ websites, October 2026. How our guarantee works
Vitamin D3 + K2 is part of the Her Healthspan Protocol, a 3-product routine priced below buying them one by one.
For strong days, every decade
Strength, calm and bones for the decades ahead.*
Creatine · Magnesium Glycinate · Vitamin D3 + K2
Evidence: All Established. How we grade
ReviewsNo reviews yet: we ask verified buyers a few weeks after delivery, once they have had time to try it. Only verified buyers review, and every rating shows, one star to five. How we handle reviews
D3 increases calcium absorption; K2 helps direct that calcium to bone. They work as a pair.*
It is the long-acting form of vitamin K2, so one capsule a day is enough.
K2 activates matrix Gla protein, found in blood vessel walls. In a 3-year trial of healthy women aged 55 to 65, 180 mcg of MK-7 a day supported artery flexibility.*
With breakfast, or up to 30 minutes before, as on the label, at the same time each day. A meal with some fat helps: in one study, vitamin D3 taken with a meal containing fat raised blood levels 32% more than with a fat-free meal.
Feel like it.
Not sure where to start? Answer five questions and I’ll match you to a protocol.
