Durable D3K

Directions & Label Instructions

Directions
For adults only. Take one softgel daily or as directed by your healthcare practitioner. Do not exceed recommended dosage unless directed by your healthcare practitioner.

Contents
Each bottle contains 60 vegetarian capsules (typically a 60-day supply).

Notice
This product contains vitamin D at a level that exceeds the adult tolerable upper intake level. It is highly recommended that serum 25(OH)- and 1,25(OH)2-vitamin D be monitored every 60-90 days while consuming this product to ensure that levels remain in an acceptable range.

Cautions
If taking medication, pregnant or breastfeeding, or if taking anticoagulants, consult your healthcare practitioner before use. Keep out of the reach of children.

Storage
Keep tightly closed in a cool, dry place.

This product is non-GMO and gluten-free. It is manufactured in a facility that produces products containing wheat, soy, milk, egg, tree nuts, fish and crustacean shellfish.

Is taking a high-potency dose of vitamin D daily safe?

The latest research shows that, even though vitamin D is a fat-soluble nutrient, a daily dose of 125 mcg (5,000 IU) is appropriate and beneficial for most people.

What form of vitamin D is best?

Vitamin D2 (ergocalciferol) is a synthetic form of vitamin D and the form often used to fortify foods. It’s also the form you’re likely to get if your doctor gives you a prescription for vitamin D. It has been shown to be significantly less absorbable—and less effective—than vitamin D3 (cholecalciferol).

Vitamin D3 is the type your body produces naturally in response to exposure to sunlight. Studies have shown that D3 is much more absorbable than D2. In fact, one study found that is raised and maintained blood levels of vitamin D 87% better than D2 and produced a 2 to 3-fold increase in storage of vitamin D in the body.

Why are there two forms of vitamin K in Durable D3K?

Vitamin K2 (menaquinone or MK-7) has consistently been shown to be the easiest form of vitamin K for the body to absorb and the most effective at delivering vitamin K’s bone health and cardiovascular benefits. While it’s found in dairy and certain fermented foods (most notably, the Japanese soy-based food, natto), a K2 supplement is the most reliable way to get vitamin K’s benefits.

We combined the K2 in Durable D3K with the K1 (phytonadione), which is the most common form naturally occurring in the human diet from sources like leafy green vegetables. Including both forms of this important fat-soluble nutrient enhances the synergistic effectiveness of our formula. 

Are there any side effects?

There are no significant known side effects associated with taking vitamins D3 and K. If you are taking blood thinning medication, check with your doctor about taking supplements that contain vitamin K.

In addition, we highly recommended that you have your vitamin D levels checked periodically while taking this product to ensure that your levels remain in a healthy range.

Pregnant or nursing women should always consult with their healthcare provider prior to using any supplements.