NOW Foods Vitamin D3 & K2 (120 Capsules) —  (Pakistan Market)

A Critical Note if You Take Warfarin or Other Blood Thinners

This is genuinely one of the most well-established supplement-medication interactions that exists, and it needs to be stated clearly before anything else: Vitamin K works directly opposite to how warfarin (also known as Coumadin) functions in the body. Warfarin works specifically by blocking the action of Vitamin K in blood clotting, so taking a Vitamin K-containing supplement like this one can reduce warfarin's effectiveness and interfere with your prescribed dosing. NOW Foods' own label specifically names warfarin, Coumadin, and heparin, and advises consulting a physician before use if you're on any anticoagulant medication. If you are on blood thinners of any kind, please do not start this product without your doctor's direct involvement and monitoring — this genuinely isn't a routine caution, it's a documented pharmacological conflict.

Why This Combination Matters, Especially in Pakistan

Vitamin D deficiency is a widespread concern across Pakistan, driven by a combination of factors: cultural clothing norms that reduce skin sun exposure (particularly relevant for women), predominantly indoor lifestyles, and limited dietary sources of Vitamin D in typical local diets. This is a genuinely common, population-level nutritional gap, not a rare concern, which is part of why Vitamin D supplementation specifically resonates with so many customers here.

Vitamin K2, paired alongside D3 in this formula, plays a complementary but distinct role: while Vitamin D3 promotes calcium absorption into the bloodstream, Vitamin K2 is involved in directing that calcium toward bone and teeth, and away from soft tissue like arterial walls — this is the basis for K2's association with cardiovascular health alongside bone health. Together, the two nutrients are commonly paired because of this complementary calcium-management relationship, rather than working on entirely separate systems.

An Important Distinction: This Uses MK-4, Not MK-7

NOW Foods sells more than one Vitamin D3 and K2 combination, and it's worth being specific about which one this is: this standard formula uses Vitamin K2 as Menaquinone-4 (MK-4), at 45mcg, alongside 1,000 IU of Vitamin D3. NOW also separately sells a "Mega D-3 & MK-7" product using a different K2 form (Menaquinone-7, MK-7) at a much higher 5,000 IU D3 dose. MK-7 is generally considered to have a longer half-life in the body than MK-4, meaning it stays active longer per dose — both are legitimate, active forms of Vitamin K2, but if you've specifically researched MK-7 and want that exact form, this particular product isn't it; check our separate Mega D-3 & MK-7 listing instead.

A Note on Sourcing: Lanolin-Derived, Not Vegan

The Vitamin D3 in this formula is sourced from lanolin — a substance derived from sheep's wool. This is a common, widely used source for D3 (as opposed to the plant-derived D2 or algae-derived D3 used in some vegan formulas), and it doesn't involve the animal being slaughtered, but it does mean this product is not suitable for strict vegans. It's generally not considered a Halal concern given sheep are a permissible animal and lanolin isn't a slaughter byproduct, though if you'd like to confirm specific certification, please reach out before ordering.

A Practical Absorption Tip

Since both Vitamin D3 and K2 are fat-soluble nutrients, the label specifically recommends taking this with food — ideally a meal containing some dietary fat — to support proper absorption, rather than taking it on an empty stomach.

Ingredient Breakdown

Non-GMO. Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut, or sesame ingredients.

Dosage Chart