Updated 25 October 2026. HealthyHey makes the D3+K2 products named in this guide. Doses are checked against India's RDA and the research is linked, so you can check it yourself.
Key Takeaways
- Why it matters in India: studies across India report vitamin D deficiency in 70% or more of people tested (Ritu and Gupta 2014), which is why D3 supplements are so widely used.
- K2 form: choose K2 labelled as MK-7 (menaquinone-7). It stays in the blood far longer than vitamin K1, so one dose a day keeps levels steady (Schurgers 2007).
- D3 dose: India's recommended dietary allowance (RDA) for adults is 600 IU (15 mcg) of vitamin D a day (ICMR-NIN 2020). If a blood test shows deficiency, your doctor sets a higher dose for a period. Do not take more than 4,000 IU a day without medical advice.
- K2 dose: India's RDA for vitamin K is 55 mcg a day (ICMR-NIN 2020). The largest MK-7 bone trial used 180 mcg a day for three years (Knapen 2013).
- Vegetarian check: verify lichen-derived D3 and HPMC/veg cellulose capsules; unlabelled D3 is likely lanolin and softgels are usually gelatin.
- Timing and results: take with a meal that contains some fat. A blood test is the way to check your vitamin D level; in the main MK-7 trial, bone differences were measured over three years (Knapen 2013).
Vitamin D deficiency is common in India, and D3+K2 combinations are now widely sold. But the market is flooded with options — from ₹150 generic tablets to ₹1,500+ premium capsules. How do you tell quality from marketing?
This guide gives you a clear checklist for evaluating any D3+K2 supplement, explains what the labels really mean, and helps you find the best option for your needs and budget. For the science behind why D3 and K2 work together, read our vitamin D3 and K2 guide.
Why D3+K2 Together (Quick Recap)
Vitamin D3 increases calcium absorption from your gut. Vitamin K2 activates proteins that depend on it, such as osteocalcin, which binds calcium in bone (Schurgers 2007). For the full explanation, see our vitamin K2 complete guide.
The 8-Point Checklist for Choosing a D3+K2 Supplement
1. K2 form: MK-7 (not MK-4)
MK-7 stays in the blood far longer than vitamin K1, so levels build up steadily with one dose a day (Schurgers 2007), and it is the form used in the main K2 bone trial (Knapen 2013). If the label just says "Vitamin K2" without specifying MK-7, it may be MK-4 or a blend.
What to look for: "Vitamin K2 as MK-7" or "Menaquinone-7" on the supplement facts panel.
2. D3 source: lanolin or lichen
Vitamin D3 can come from:
- Lanolin (sheep wool grease) — most common, effective but not vegan
- Lichen — plant-based, suitable for vegans and vegetarians
- The name on the label — vitamin D3 is cholecalciferol whichever source it comes from, so check the source, not just the name
For vegetarians (a large segment of India), lichen-derived D3 is the preferred choice. If the label doesn't specify the source, it's likely lanolin.
3. D3 dose: check it against India's RDA
India's RDA for adults is 600 IU (15 mcg) of vitamin D a day (ICMR-NIN 2020). If a blood test shows your level is low, your doctor will set a higher dose for a period and recheck it. The NHS advises not taking more than 4,000 IU a day unless a doctor advises it.
Note: 60,000 IU weekly sachets are high doses used to correct deficiency; take them only as your doctor directs.
4. K2 dose: the RDA and the trial dose
India's RDA for vitamin K is 55 mcg a day (ICMR-NIN 2020). The largest MK-7 trial gave 244 healthy postmenopausal women 180 mcg a day or a placebo for three years: bone loss at the spine and the neck of the hip was smaller with MK-7, though not across the whole hip (Knapen 2013). Check the mcg of MK-7 on the supplement facts panel, not just the front label.
5. Capsule type: Veg capsules vs gelatin
For the large vegetarian population in India, this matters. Look for "vegetable cellulose" or "HPMC" capsules. Gelatin capsules are derived from animal sources. Softgels are usually gelatin unless specifically stated as veg softgels.
6. Certifications that matter
| Certification | What it means | Why it matters |
|---|---|---|
| FSSAI | Food Safety & Standards Authority of India license | Legal requirement — any product without this is illegal to sell in India |
| GMP | Good Manufacturing Practice | Manufacturing quality — look for third-party GMP (e.g., TÜV India) not self-declared |
| NABL lab reports | National Accreditation Board for Laboratories | Independent test results. Check what each report tested: most test contaminants such as heavy metals and microbes, not how much D3 or K2 is inside |
| ISO 22000 / FSSC 22000 | Food safety management systems | Systematic quality assurance beyond basic GMP |
Red flag: Brands that claim "lab tested" but don't publish or share actual lab reports. Published reports with batch numbers let you check what was tested and when.
7. Additional ingredients: Less is more
The best D3+K2 supplements keep the formula simple: D3, K2 (MK-7), and a capsule. Watch out for:
- Unnecessary fillers (silicon dioxide, titanium dioxide)
- Added colours or flavours
- Proprietary blends that hide individual ingredient amounts
8. Price per serving (not just price per bottle)
Always calculate price per capsule/serving, not just bottle price. A ₹499 bottle with 30 capsules (₹16.6/serving) is more expensive per dose than a ₹899 bottle with 120 capsules (₹7.5/serving). Larger bottles almost always offer better value.
Common Mistakes When Buying D3+K2 in India
Mistake 1: Taking D3 without K2
Many Indians take D3-only supplements (often prescribed as 60,000 IU weekly sachets). Whether you also need K2 is worth asking your doctor: K2 works on different proteins from D3, and India's RDA lists both.
Mistake 2: Assuming all "K2" is MK-7
Some products list "Vitamin K2" but use MK-4 or don't specify. Always check for "MK-7" or "Menaquinone-7" on the supplement facts panel.
Mistake 3: Ignoring vegetarian compatibility
Many D3 supplements use lanolin-derived D3 and gelatin capsules. If vegetarian compatibility matters to you, verify both the D3 source (lichen-based) and capsule material (HPMC/veg cellulose).
Mistake 4: Chasing the cheapest option
Compare the cost per 100 mcg of K2 and per 1,000 IU of D3 rather than the bottle price, and check the doses and lab reports before choosing on price.
Who Needs a D3+K2 Supplement Most?
- Office workers and indoor professionals — Limited sun exposure = low D3 synthesis
- Women over 40 — Accelerated bone density loss pre- and post-menopause
- Vegetarians — Limited dietary sources of both D3 (no fatty fish) and K2 (no natto)
- Older adults (60+) — Reduced skin synthesis of D3 and higher fracture risk
- People with diagnosed D3 deficiency — follow your doctor's dose, and ask whether K2 suits you
- Anyone already taking calcium — ask your doctor whether D3 and K2 suit you alongside it
HealthyHey Vitamin K2 MK-7 + Vitamin D3 gives 55 mcg of K2 as MK-7 and 600 IU (15 mcg) of lichen-derived D3 in one vegetarian capsule a day: 100% of India's RDA for both, as printed on the label. It gives less K2 than the 180 mcg used in the main bone trial. Every production batch is tested at an NABL-accredited lab; our published reports are listed with their batch numbers. It is made by HealthyHey Foods LLP in Mumbai in a unit certified to GMP (TÜV India), FSSC 22000 and ISO 22000. Available in 30, 60 and 120 capsules. See the product →
Need standalone K2? HealthyHey Vitamin K2 (MK-7) gives 55 mcg of K2 as MK-7 per vegetarian capsule.
For all-in-one bone support: BoneMax combines Calcium + Magnesium + D3 + K2 in one formula.
HealthyHey Vitamin K2 MK-7 + D3: label and lab results
- Label: 55 mcg vitamin K2 (MK-7) and 15 mcg (600 IU) vitamin D3 (cholecalciferol from lichen) per vegetarian capsule; one capsule a day with a meal; 30, 60 or 120 capsules. Other ingredients on the label: bulking agent (INS 460(i)), anticaking agent (INS 341(iii)), vegetable capsule shell (HPMC, INS 464), binding agent (INS 407) and preservative (INS 261(i)).
- Price on healthyhey.com on 25 October 2026: ₹899 for 120 capsules (₹13.62 per 100 mcg of K2), ₹699 for 60 and ₹499 for 30.
- Lab reports (report page): heavy metals on batch PHS31122802 (Avon Food Lab, NABL TC-11151, issued 30 January 2026): lead and arsenic below the quantitation limit of 0.05 mg/kg, within FSSR 2011 limits. Microbiology on batch PHS73SA0094 (Avon, August 2025): Salmonella and Listeria absent in 25 g. Neither report measures the K2 or D3 content.
Vitamin D3 and K2 Safety: Upper Limits and Interactions
- Upper limit for vitamin D: the NHS advises not taking more than 100 micrograms (4,000 IU) of vitamin D a day, as it could be harmful. Some people have medical conditions that mean they cannot safely take as much; if in doubt, ask your doctor.
- Too much over time: taking too much vitamin D for a long period can cause calcium to build up in the body (hypercalcaemia), which can weaken bones and damage the kidneys and heart, according to the NHS.
- Warfarin: vitamin K affects how warfarin works. The NHS says not to take vitamin K supplements while taking warfarin, and the warfarin label advises keeping vitamin K intake consistent. If you take warfarin, do not start a D3+K2 supplement without your doctor's advice.
- Vitamin K dose: the NHS says taking 1 mg (1,000 mcg) or less of vitamin K a day from supplements is unlikely to cause harm.
- Pregnancy and breastfeeding: ask your doctor which dose suits you before starting.
Sources: NHS: vitamin D, vitamin K, warfarin. US FDA prescribing information for warfarin, via DailyMed. Checked 14 October 2026.
Frequently Asked Questions
Which is the best vitamin D3+K2 supplement in India?
Look for K2 stated as MK-7, the D3 source (lichen if you are vegetarian), veg capsules, doses checked against India's RDA (600 IU of vitamin D and 55 mcg of vitamin K a day) and published lab reports. HealthyHey Vitamin K2 MK-7 + D3 gives exactly the RDA amounts; products with 100 to 180 mcg of K2 are closer to the doses used in trials.
Can I take D3+K2 if I'm already taking a multivitamin?
Check your multivitamin's D3 and K2 content and add the amounts together. Keep your total vitamin D below 4,000 IU a day unless your doctor advises more.
Should I take D3+K2 in the morning or evening?
Either works. The key is taking it with a meal that contains some fat (ghee, nuts, oil) for absorption. Consistency matters more than timing.
How long before I see benefits from D3+K2?
A blood test shows your vitamin D level, and doctors usually recheck it after a few months. In the main MK-7 trial, vitamin K status improved with supplementation and bone differences were measured over three years.
Is D3+K2 safe during pregnancy?
Ask your doctor before taking any supplement during pregnancy or breastfeeding; they will advise the vitamin D dose that suits you.
Can I take D3+K2 with blood thinners?
K2 can interfere with warfarin and similar anticoagulants. If you take blood thinners, do not start K2 without your doctor's approval. One study found that 50 mcg a day or more of MK-7 may change how warfarin works; HealthyHey Vitamin K2 MK-7 + D3 gives 55 mcg.
Research Sources
- Ritu G, Gupta A. Vitamin D deficiency in India: prevalence, causalities and interventions. Nutrients. 2014;6(2):729-775. doi:10.3390/nu6020729
- Schurgers LJ et al. Vitamin K-containing dietary supplements: comparison of synthetic vitamin K1 and natto-derived menaquinone-7. Blood. 2007;109(8):3279-3283. doi:10.1182/blood-2006-08-040709
- Knapen MHJ et al. Three-year low-dose menaquinone-7 supplementation helps decrease bone loss in healthy postmenopausal women. Osteoporos Int. 2013;24(9):2499-2507. doi:10.1007/s00198-013-2325-6
- ICMR-National Institute of Nutrition. Nutrient Requirements for Indians: Recommended Dietary Allowances and Estimated Average Requirements, 2020.
Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice. Consult your healthcare provider before starting any supplement. HealthyHey products are not intended to diagnose, treat, cure, or prevent any disease.