Vitamins and minerals
Active B Complex
B vitamins + choline, citicoline, and myo-inositol
100 plant-based capsules
Doctor Life
Optimized Singles170 mcg K2 MK-7 + 30 mcg K1 in black seed oil
Four categories. Find the support that fits your needs.
Overview
Two forms of vitamin K for healthy bones and normal blood clotting. K2 Special combines K2 as menaquinone-7, produced through Bacillus subtilis natto fermentation, with vitamin K1 in one capsule.
At the heart of the formula / K2 Special
K2 Special
K2 Special
K2 Special
Ingredients / Doctor Life
Each ingredient, its form and quantity — in one place.
| Ingredient | 1 capsule |
|---|---|
| Vitamin K2 | 170 µg |
| Vitamin K1 | 30 µg |
| Black Cumin Oil | 200 mg |
| Thymoquinone from black seed oil | 11.4 mg |
*NRV: Nutrient Reference Value
How to use
Science & sources
These publications concern the studied ingredients or formulas. They do not all evaluate the finished Doctor Life product, and research results do not guarantee individual outcomes.
EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA)
EFSA Journal (2009), 7(9), 1228. DOI: 10.2903/j.efsa.2009.1228.
EFSA recognizes vitamin K’s role in normal blood clotting and the maintenance of healthy bones. These are the two established functions relevant to K2 Special. The opinion concerns vitamin K as a nutrient.
Read publication ↗M. H. J. Knapen, N. E. Drummen, E. Smit, C. Vermeer, E. Theuwissen
Osteoporosis International (2013), 24(9), 2499-2507. DOI: 10.1007/s00198-013-2325-6; PMID: 23525894.
A three-year randomized trial studied 180 mcg of MK-7 daily in 244 healthy postmenopausal women. Supplementation improved vitamin K status and selected measures of bone density and strength. The trial examined MK-7, not this finished product.
Read publication ↗Zeynab Kavyani et al.
Inflammopharmacology (2023), 31(3), 1149-1165. DOI: 10.1007/s10787-023-01213-0; PMID: 37036558.
A meta-analysis of 20 randomized trials involving 1,086 participants found favorable changes in selected markers of oxidative stress and inflammation with black seed supplementation. The studies used different Nigella sativa preparations, so their findings cannot be assumed to apply directly to this formula.
Read publication ↗Doctor Life formulas
Vitamins and minerals
B vitamins + choline, citicoline, and myo-inositol
100 plant-based capsules
Vitamins and minerals
Two coenzyme forms of vitamin B12
60 plant-based capsules
Vitamins and minerals
B12 coenzymes · Methylcobalamin · 5′-Deoxyadenosylcobalamin
60 capsules
Vitamins and minerals
Active Folate 800 mcg
90 capsules