Hi-Tech Pharmaceuticals Mega Vitamin D3+K2 combines a robust 5,000 IU dose of Vitamin D3 (Cholecalciferol) with 180mcg of Vitamin K2 (MK-7) in a synergistic formula designed to support bone strength, cardiovascular health, and immune function simultaneously. Delivered via Hi-Tech's Cyclosome® Technology for enhanced bioavailability over standard fat-soluble vitamin tablets. Vitamin D3 also known as the "sun vitamin," is produced by our interaction with the sun — it provides the body with an incredible opportunity to grow stronger and increase power in muscle, in addition to training. Leaner muscles supported by a stronger skeleton is a win/win for overall health and mood. Pairing D3 with K2 specifically ensures that the calcium D3 helps the body absorb is properly directed toward bone tissue rather than soft tissue and arterial walls.†
What's Confirmed — Hi-Tech Pharmaceuticals Mega Vitamin D3+K2 (120 Tablets)
Vitamin D3 (Cholecalciferol) — 5,000 IU
Vitamin K2 (MK-7) — 180mcg
Delivery: Cyclosome® Technology — liposomal system for enhanced bioavailability of these fat-soluble vitamins
120 tablets per bottle
California Prop 65 Warning applies.
Not confirmed from available sources: exact serving size (tablets per dose), total servings per container, complete Other Ingredients list, and specific dosing directions. Please refer to your bottle's label for these details, or send a photo for a complete write-up.
Why D3 and K2 Are Paired — Not Coincidence
Both vitamin D and vitamin K are necessary for optimal bone health, but they work at different steps of the same process. Vitamin D3 increases calcium availability by promoting its absorption from the digestive tract into the bloodstream. Vitamin K2 activates the proteins — most notably osteocalcin — that bind that calcium into bone matrix, while also activating matrix Gla-protein, which inhibits calcium deposition in blood vessel walls. Vitamin K2 may increase osteocalcin levels, which can help reduce spine fracture risk, and treating patients with vitamin K may offer the additional advantage of protecting arteries from vascular calcification through its action on these vitamin K-dependent proteins. Taking D3 without K2 can theoretically increase circulating calcium without ensuring it's directed toward bone rather than soft tissue — which is exactly the gap this combination is designed to close.†
5,000 IU — A Robust, Not Token, Dose
At 5,000 IU, Hi-Tech's D3 dose sits well above the 600-800 IU RDA and within the higher therapeutic range commonly used to correct D3 insufficiency — a widespread issue given that most people don't get enough sun exposure or dietary D3 to maintain optimal blood levels, particularly during winter months or for anyone who spends most of their time indoors. Beyond bone health, Vitamin D3 supports immune system function and has documented associations with mood, energy regulation, and — specifically relevant to Hi-Tech's athletic customer base — muscle strength and power output.†
MK-7 — Why This K2 Subtype
Vitamin K2 exists in multiple subtypes, and Hi-Tech uses MK-7 (Menaquinone-7) specifically because it has a significantly longer half-life in the body than the shorter-acting MK-4 form, allowing for steadier, more sustained activation of vitamin K-dependent proteins from once-daily dosing. This extended activity window is what allows MK-7 to keep osteocalcin and matrix Gla-protein continuously activated for bone building and vascular calcium management throughout the day.†
Cyclosome® Technology — Why It Matters for Fat-Soluble Vitamins
Both D3 and K2 are fat-soluble vitamins, meaning their absorption depends on adequate dietary fat and bile flow at the time of ingestion — a variable that can produce inconsistent absorption from standard tablets depending on whether they're taken with a meal. Hi-Tech's Cyclosome® Technology (a liposomal delivery system used across much of their product line) is designed to improve and stabilize the bioavailability of fat-soluble compounds like D3 and K2, helping ensure more consistent absorption regardless of meal timing compared to conventional tablet delivery.†
Frequently Asked Questions
Why take D3 and K2 together instead of separately?
D3 increases calcium absorption from the gut, while K2 activates the proteins that direct that calcium toward bone rather than soft tissue and arteries. Taking D3 alone can theoretically increase circulating calcium without ensuring it ends up in the right place — the combination is considered more complete for both bone and cardiovascular health than either vitamin alone.†Is 5,000 IU of Vitamin D3 safe to take daily?
5,000 IU is a commonly used therapeutic dose for correcting Vitamin D insufficiency and is within ranges used under general supplementation guidance, but individual needs vary based on baseline blood levels, body weight, and sun exposure. Anyone with a known Vitamin D deficiency or taking other supplements containing D3 should discuss appropriate total daily intake with a physician.†Can I take this alongside a calcium supplement?
Yes — this is a logical pairing. Calcium provides the raw material, D3 supports its absorption, and K2 helps direct it into bone tissue specifically, functioning as a complete system rather than redundant additions.†Is Mega Vitamin D3+K2 appropriate for tested athletes?
Yes — Vitamin D3 and Vitamin K2 are naturally occurring nutrients, not prohibited by WADA, NCAA, or any sports governing body.†
How to Take Hi-Tech Pharmaceuticals Mega Vitamin D3+K2
Take as directed on your product label, ideally with a meal containing some dietary fat to support absorption of these fat-soluble vitamins. Not for use by individuals under 18 without physician guidance. Not for pregnant or nursing women without physician clearance. Individuals taking blood thinners (Warfarin, Coumadin) must consult a physician before use — Vitamin K2 may interfere with anticoagulant medication mechanisms. Consult a physician before use if taking any prescription medications or having any medical condition. California Prop 65 Warning applies.†
Why Buy at Get Yok'd
Real-time inventory across all five Southern California stores
Available in Burbank, Glendale, Glendale Galleria, Pasadena, and North Hollywood
Authorized Hi-Tech Pharmaceuticals retailer — carrying Mega Vitamin D3+K2 alongside the full Hi-Tech vitamin and daily wellness lineup
Staff who can help you incorporate Mega Vitamin D3+K2 into a complete daily bone, immune, and cardiovascular support protocol
One of the best loyalty programs in the supplement industry — earn rewards on every purchase
Who Should Exercise Caution with Mega Vitamin D3+K2
Individuals taking blood thinners (Warfarin, Coumadin) must consult a physician before use — Vitamin K2 can interfere with anticoagulant medication
Individuals with a history of kidney stones or hypercalcemia should consult a physician — high-dose D3 increases calcium absorption
Not for use by individuals under 18 without physician guidance
Not for pregnant or nursing women without physician clearance
Individuals already taking a comprehensive multivitamin should review combined fat-soluble vitamin intake with a physician
Consult a physician before use if taking any prescription medications or having any medical condition
California Prop 65 Warning applies.
Keep out of reach of children.
†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.