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Vitamins D3 + K2-MK7

  • Vitamin D and K2 synergy
  • Exceptional patented vitamins
  • Helps strengthen bones
  • Boosts the immune system
The ideal mix for strong bones and a strengthened immune system Find out more
  • Bone structure
  • +
  • Immunity
  • Longevity
  • Capsules
  • 60 Capsules
  • 120 Capsules
  • 400 Capsules
Optimal consumption date: 08/2023
- 1 +
Take 1 capsule per day.
  • Receive a free product with orders over 50€
  • Free delivery on orders over 60€



Take 1 capsule of Nutrimuscle vitamin D3 + K2-MK7 per day.

Why choose vitamin D3 + K2-MK7?

Vitamin D3 and vitamin K2-MK7 can both help to preserve bone stock. This mixture therefore provides you with a powerful synergy to improve your bone strength.

In addition, consuming vitamin D3 and vitamin K2 together allows you to take full advantage of their health, longevity, and immune-boosting benefits.

What is vitamin D? What is vitamin K2?

Vitamin D is a fat-soluble vitamin. This means that it mixes with fats in order to be assimilated by the body. People on a calorie-restricted diet are more likely to suffer from vitamin D deficiency.

Vitamin K2 is a special form of vitamin K that is also fat-soluble. The K2-MK7 version is much better absorbed than the other K vitamins. It also stays in the body longer and therefore works longer than the other K2 vitamins. (1-2-3)

What are the benefits of vitamin D3?

Bone strength

Vitamin D contributes to the proper use of calcium and magnesium, especially for the maintenance of bone integrity

Combating vitamin D deficiency

The baseline study, SU. VI. (Supplémentation en VItamines et Minéraux AntioXydants - antioxidant vitamin and mineral supplementation) highlights the fact that a significant proportion of French people have difficulty satisfying their minimum vitamin requirements.

A study by CREDOC has shown that more than 82% of French people do not attain their minimum vitamin D needs and are also more than 32% deficient in vitamin C, 25% in vitamin E, and 21% in vitamin B9 (4).

Moreover, during winter, our body is commonly deficient in vitamin D. At this time of the year, we are less exposed to the sun's ultraviolet rays, which usually allow us to synthesise vitamin D. Hence, the purpose of supplementation is to increase our reserves.

Boosted athletic performance

Intense training is linked to the increase of cortisol levels in the body. This hormone has an anti-anabolic effect and also causes a drop in testosterone levels. This has negative effects on the quality of recovery and muscle development.
Vitamin D consumption is associated with an increase in testosterone secretion and a decrease in myostatin, which is a catabolic hormone for our muscles (5-6-7). Its effect thus makes it possible to compensate for some of the negative effects of cortisol.

Moreover, a study has shown that vitamin D supplementation among athletes compared to a placebo increased their thigh strength by 5kg (2kg for those on the placebo) in just four weeks (8).

Statistical analyses also show that progression is always faster with high rather than medium vitamin D levels (9).

Finally, vitamin D helps the body use calcium and magnesium to maintain bone integrity and muscle functioning.

The benefits of vitamin D on longevity!
After many years of scientific research, vitamin D is now recognised as the longevity vitamin. (10-11-12)

Research has been grouped together to allow us to analyse this subject via the figures: an initial group of several studies carried out over a period of 8 years highlighted the increasing mortality risks for men and women with normal vitamin D levels (28ng per ml of blood) of:

  • 24% for people with an average level (19ng/ml).
  • 53% for people with a low level (10ng/ml).
  • 108% for people with a very low level (7ng/ml) (13).

On the other hand, it has been found that over a period of 6 years, men and women taking daily supplements of 400 to 800 IU of vitamin D experienced an 8% reduction in mortality.
Our dosage of Nutrimuscle Quali®-D Vitamin D3 corresponds to 2000 IU of Vitamin D.

Vitamin D aids fat loss

Several scientific studies show the value of vitamin D supplementation in optimising fat loss.

For women, 12 weeks of vitamin D supplementation resulted in a 2.7kg weight loss compared to only 500g for those taking the placebo. (14)
Similarly, when restricting calories, the higher your vitamin D intake is, the greater your fat loss will be. (15)

In addition, vitamin D plays a role in increasing basic metabolism and fat oxidation. (16-17)

1. Vitamin D strengthens muscle function and contributes to a healthy immune system.

2. Vitamin D helps to ensure the absorption/functioning of calcium and phosphorus.

3. Vitamin D contributes to bone health, dental health and proper muscle function.

4. Vitamin K contributes to bone health.

5. vitamin MK7 contributes to the maintenance of the elastic properties of the arteries.

What are the benefits of vitamin K2-MK7?

Improved health
Several scientific studies have highlighted the benefits of vitamin K2, which helps better resist issues that come with ageing such as inflammatory problems, joint pains, calcification of the vessels, diminished bone strength, or cerebral deterioration. (18-19-20-21)

Increased bone strength
Vitamin K2 acts as a distributor of calcium deposits. Vitamin K2 helps calcium reach your bones, where it has a beneficial effect. Again thanks to vitamin K2, calcium deposits in the arteries, where they are harmful (vascular calcification), will be minimised.
Vitamin K2 therefore helps strengthen the bones through effective use of calcium. (22)

Vitamin K2 and longevity
A 5-year study of over 7000 people also showed that the higher your vitamin K2 intake, the lower the risk of cancer and mortality (23).
Beyond the effects on cardiovascular and bone diseases, a high vitamin K2 intake is associated with a lower risk of metabolic disease (24).


Ingredients of Nutrimuscle's Vitamin D3 + K2-MK7

Vitamins D3 + K2-MK7 in capsules:

  • Inulin Frutafit® HD
  • Vitamin D3 Quali®-D cholecalciferol (D3)
  • Vitamin K2-MK7 (menaquinone 7)
  • Vegetarian HPMC capsule and water.

Nutrimuscle vegetarian capsules
100% vegetable cellulose 
Gelatin free
GMO free
No preservatives 
Allergen free
Sugar free
Starch free

Nutritional values of Nutrimuscle's Vitamin D3 + K2-MK7

Nutritional values per 100 g:

  • Proteins 0 g
  • Fat 0 g
  • Carbohydrates 0 g
  • Calories 0 kcal
  • BCAA 0 g

Nutritional composition of Nutrimuscle's Vitamin D3 + K2-MK7

1 capsuleAJR*
vitamin D Quali®-D50mcg1000%
vitamin K2-MK7100mcg133%
  • 1 capsule contains 50mcg of Quali®-D vitamin D or 2000IU of Quali®-D vitamin D and 100 mcg of vitamin K2-MK7. 
  • * AJR: Recommended Daily Allowance 

Usage tips

Who is Nutrimuscle Vitamin D3 + K2-MK7 for?

Nutrimuscle Vitamin D3 + K2-MK7 is for:

  • athletes, whose vitamin K2 and vitamin D needs are higher than those of inactive people
  • inactive people, as a dietary supplement and for their combined effects on longevity and the protection of bone mass.

When should I take Nutrimuscle Vitamin D3 + K2-MK7?

In the morning with breakfast is best.

How do I take Nutrimuscle Vitamin D3 + K2-MK7?

As vitamins work on a long-term basis, it is best to follow extended treatment courses for as long as you are training intensively.
Short treatments of just a few weeks are not really appropriate.

Interactions with other Nutrimuscle products

Synergies between supplements
There is also a healthy synergy when you combine the regular use of vitamins, including vitamin D, with the regular use of omega 3. This is what medical research has shown, particularly with regard to the prevention of heart disease and the strengthening of the immune system. The combined consumption of vitamin D and omega 3 is more effective than using of just one of these two dietary supplements (25).

Such a synergy has also been noted amongst athletes when it comes to combatting the harmful effects of free radicals (46).

Several studies show that the association of vitamin D and milk protein has positive effects on weight loss, which is notably linked to the better absorption of calcium through vitamin D intake (27); and on strength, especially among senior citizens (28).

As collagen is a major constituent of our bones, vitamin K2 acts in synergy with Peptan Collagen Peptide (type-1 as well as type-IIm, which has a more targeted effect on cartilage) to promote bone strength.

Similarly, vitamin D significantly enhances the effects of vitamin K2 on bone strength (29). 

Vitamin K2 is to be taken with multivitamins, which contain vitamin K1. K2 therefore does not simply duplicate the effect of our multivitamins. On the contrary, it reinforces it.
Adverse reactions between supplements
Anti-cholesterol drugs and antibiotics reduce vitamin K2 absorption. These drugs therefore increase your need for vitamin K2.
There are no known adverse reactions between vitamin D and other supplements.

Scientific references

  • (1) Shurgers LJ. Determination of Phylloquinone and Menaquinones in Food. Effect of Food Matrix on Circulating Vitamin K Concentrations. Haemostasis 2000, 30, 298–307.
  • (2) Schurgers LJ. Vitamin K- containing dietary supplements: Comparison of synthetic vitamin K1 and natto-derived menaquinone-7. Blood 2007, 109, 3279–3283.
  • (3) Schurgers LJ. Differential lipoprotein transport pathways of K-vitamins in healthy subjects. Biochim. Biophys. Acta 2002, 1570, 27–32.
  • (4) Pilorin T. Consommation de compléments alimentaires en France : profil des consommateurs et contribution à l’équilibre nutritionnel. Cahiers de Nutrition et de Diététique Volume 47, Issue 3, June 2012, Pages 147–155.
  • (5) Pilz S. Effect of vitamin D supplementation on testosterone levels in men. Horm Metab Res. 2011 Mar;43(3):223-5. 
  • (6) Nimptsch K. Association between plasma 25-OH vitamin D and testosterone levels in men. Clin Endocrinol (Oxf). 2012 Jul;77(1):106-12. 
  •  (7) Garcia LA. 1,25(OH)2Vitamin D3 Stimulates Myogenic Differentiation by Inhibiting Cell Proliferation and Modulating the Expression of Promyogenic Growth Factors and Myostatin in C2C12 Skeletal Muscle Cells. Endocrinology August 1, 2011 vol. 152 no. 8 2976-2986
  • (8) Hodgson AB. The Effects of 4 Weeks Vitamin D3 Supplementation on Athletic Performance Medicine & Science in Sports & Exercise. 2012 44(5S): 950 
  • (9) Grimaldi, AS. 25(OH) Vitamin D is Associated with Greater Muscle Strength in Healthy Men and Women. Medicine & Science in Sports & Exercise: POST ACCEPTANCE, 14 August 2012
  • (10) Skaaby T. Vitamin D status and incident cardiovascular disease and all-cause mortality: a general population study. Endocrine. 2012 Sep 27. [Epub ahead of print] 
  • (11) Cheng TY. Serum 25-hydroxyvitamin D, vitamin A, and lung cancer mortality in the US population: a potential nutrient-nutrient interaction. Cancer Causes Control. 2012 Sep;23(9):1557-65. 
  • (12) Dobnig H. Independent association of low serum 25-hydroxyvitamin d and 1,25-dihydroxyvitamin d levels with all-cause and cardiovascular mortality. Arch Intern Med. 2008 Jun 23;168(12):1340-9.
  • (13) Autier P. Vitamin D supplementation and total mortality: a meta-analysis of randomized controlled trials. Arch Intern Med. 2007 Sep 10;167(16):1730-7.
  • (14) Salehpour A. A 12-week double-blind randomized clinical trial of vitamin D3 supplementation on body fat mass in healthy overweight and obese women. Nutrition Journal 2012, 11:78 
  • (15) Shahar DR. Dairy calcium intake, serum vitamin D, and successful weight loss. Am J Clin Nutr November 2010 vol. 92 no. 5 1017-1022 
  • (16) Soares MJ. Mechanistic roles for calcium and vitamin D in the regulation of body weight. Obes Rev. 2012 Jul;13(7):592-605. 
  • (17) Forney L. Vitamin D Status, Adiposity and Performance Measures in College-Aged Students. Medicine & Science in Sports & Exercise. 2012 44(5S): 951.
  • (18) Schwalfenberg GK. Vitamins K1 and K2: The Emerging Group of Vitamins Required for Human Health. J Nutr Metab. 2017;2017:6254836. 
  • (19) Shea MK. The association between vitamin K status and knee osteoarthritis features in older adults: The Health, Aging and Body Composition Study. Osteoarthr. Cartil. 2016, 23, 370–378 
  •  (20) Zhang S. Vitamin K status and cardiovascular events or mortality: A meta-analysis. Eur. J. Prev. Cardiol. 2019, 26, 549–553. 
  •  (21) Alisi L. The Relationships Between Vitamin K and Cognition: A Review of Current Evidence Front. Neurol., 19 March 2019  
  • (22) Sato T. MK-7 and Its Effects on Bone Quality and Strength. Nutrients. 2020 Mar 31;12(4):E965.
  • (23) Juanola-Falgarona M. Dietary Intake of Vitamin K Is Inversely Associated With Mortality Risk J Nutr. 2014 May;144(5):743-50.
  • (24) Dam V. Association Between Vitamin K and the Metabolic Syndrome: A 10-Year Follow-Up Study in Adults. J Clin Endocrinol Metab. 2015 Jun;100(6):2472-9.
  • (25) Earnest CP. Complementary effects of multivitamin and omega-3 fatty acid supplementation on indices of cardiovascular health in individuals with elevated homocysteine. Int J Vitam Nutr Res. 2012 Feb;82(1):41-52. 
  • (26) Filaire E. Effects of 6 weeks of n-3 fatty acids and antioxidant mixture on lipid peroxidation at rest and postexercise. Eur J Appl Physiol. 2011 Aug;111(8):1829-39.
  • (27) Recherche en nutrition Volume 59 , novembre 2018 , pages 53 à 64 Hadil S. Subih
  • (28) Effects of a Vitamin D and Leucine-Enriched Whey Protein Nutritional Supplement on Measures of Sarcopenia in Older Adults, the PROVIDE Study: A Randomized, Double-Blind, Placebo-Controlled Trial. J Am Med Dir Assoc. 2015 Sep 1;16(9):740-7. Bauer JM
  • (29) Kuang X. The Combination Effect of Vitamin K and Vitamin D on Human Bone Quality: A Meta-Analysis of Randomized Controlled Trials. Food Funct. 2020 Apr 30;11(4):3280-3297.  

Find out more

Purity of raw materials guaranteed

Vitamin D Quali®-D is a pharmaceutical-grade vitamin D produced by the European brand DSM, which is HACCP and ISO9001 certified.

Our patented 'MenaQ7 Natural' vitamin K2-MK7 by producer Nattopharma was selected for its excellent quality.

1. Vitamin D strengthens muscle function and contributes to a healthy immune system.

2. Vitamin D helps to ensure the absorption/functioning of calcium and phosphorus.

3. Vitamin D contributes to bone health, dental health and proper muscle function.

4. Vitamin K contributes to bone health.

5. vitamin MK7 contributes to the maintenance of the elastic properties of the arteries.

Certificates and studies



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Conceived in France
& made in Belgium
0% additives
0% bulking agents
100% pure ingredients
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