Vitamin D3 + K2 (MK-7) with Calcium — 5,000 IU | 60 Capsules

Sigo Nutrition Vitamin D3 + K2 is a dietary supplement providing 125 mcg (5,000 IU) of vitamin D3 as cholecalciferol, 100 mcg of vitamin K2 as MK-7, and 210 mg of calcium per capsule. The suggested use is one capsule twice daily, giving a total daily intake of 250 mcg (10,000 IU) of vitamin D3 and 200 mcg of K2. Both vitamins are fat-soluble and the capsule contains no oil carrier, so each dose should be taken with a meal containing fat. The bottle holds 60 capsules — a 30-day supply at the suggested use. It supports bone health.

It differs from vitamin D3 sold alone by including vitamin K2 in the MK-7 form, which has a longer half-life than MK-4 and remains in circulation for days rather than hours. The formula also contains BioPerine® black pepper extract. It is not suitable for people taking warfarin or other blood-thinning medication without medical supervision.

What is Vitamin D3 + K2?

Vitamin D3 + K2 is a dietary supplement that combines two fat-soluble vitamins involved in how the body handles calcium. Each capsule contains 125 mcg (5,000 IU) of vitamin D3 as cholecalciferol, 100 mcg of vitamin K2 as MK-7, and 210 mg of calcium as calcium carbonate. It also contains BioPerine® black pepper fruit extract. The capsule is vegetarian, made from hypromellose. Taken daily, it supports bone health.

Why are D3 and K2 taken together?

They act at different points in the same process. Vitamin D3 increases how much calcium the body absorbs from food. Vitamin K2 is involved in directing that calcium into bone tissue. Because D3 raises calcium absorption, the two are frequently paired so that the additional calcium has the cofactor involved in depositing it. They are also both fat-soluble, so they absorb under the same conditions and can be taken in a single capsule.

What’s the difference between MK-7 and MK-4?

MK-7 and MK-4 are both forms of vitamin K2, and the practical difference is how long they stay in the body. MK-7 has a half-life measured in days, while MK-4 clears within hours. That’s why MK-7 works at 100–200 mcg taken once daily, whereas MK-4 is typically dosed at 1,500 mcg or more, several times a day, to maintain a similar effect.

This product uses MK-7 at 100 mcg per capsule. A label that says only “vitamin K2” without specifying the form may contain either one.

How much vitamin D3 is in each capsule?

Each capsule contains 125 mcg of vitamin D3, which equals 5,000 IU. Vitamin D converts at 40 IU per microgram. That is 625% of the Daily Value, which is 20 mcg.

At the suggested use of one capsule twice daily, the total daily intake is 250 mcg, or 10,000 IU.

Should I take it with food?

Yes. Vitamin D3 and vitamin K2 are both fat-soluble, meaning they require dietary fat to be absorbed. This capsule contains no oil carrier — the other ingredients are microcrystalline cellulose and the hypromellose capsule — so absorption depends on fat being present in the meal.

For best results, take 20-30 min before a meal or as directed by your healthcare professional. Taken on an empty stomach, a significant portion may pass through unabsorbed.

Can I take it with blood thinners?

Not without medical supervision. Vitamin K is directly involved in blood clotting, and it interacts with warfarin and other vitamin K antagonists. Adding or stopping a vitamin K supplement can change how those medications work.

This does not mean vitamin K2 is permanently off-limits to people taking anticoagulants — consistency of intake is what matters clinically — but any change should be managed by the prescribing physician rather than made independently.

The formula also contains BioPerine® black pepper extract, which can increase the absorption of a range of medications. Anyone taking prescription drugs, including thyroid medication, should check with a doctor or pharmacist.

Is 10,000 IU of vitamin D safe?

10,000 IU per day is above the Tolerable Upper Intake Level for adults, which is 4,000 IU. Doses at this level are legal, widely sold, and used clinically to correct deficiency — but they are not a casual choice for indefinite daily use.

Two things to consider. Vitamin D is fat-soluble and accumulates in the body rather than being cleared daily. And if you take a multivitamin or other supplement containing vitamin D, that adds to this total.

A blood test measuring 25-hydroxyvitamin D is the only way to know your actual level. Anyone taking 10,000 IU daily on an ongoing basis should discuss it with a doctor or dietitian and have their level checked.

How long does one bottle last?

The bottle contains 60 capsules. At the suggested use of one capsule twice daily, that is a 30-day supply.

Ingredients: Calcium (as Calcium Carbonate), Vitamin D3 (Cholecalciferol), Vitamin K2 (mk-7)(as Menaquinone), BioPerine® (Black Pepper Fruit Extract), Microcrystalline Cellulose, Hypromellose (vegetable capsule).

Vegetarian capsule.

Manufacturer Country: USA

Product Amount: 60 caps

Gross Weight: 2.6 oz / 0.16 lb / 73 g

Suggested Use: Take one (1) capsule twice a day as a dietary supplement. For best results, take 20-30 min before a meal or as directed by your healthcare professional.

Caution: Do not exceed recommended dose. Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.

Warning: Keep out of reach of children. Do not use if the safety seal is damaged or missing. Store in a cool, dry place.