Vitamin D3 and K2 are both essential fat soluble nutrients that supply many benefits individually, but they rely on each other to function optimally. EnDuro D takes advantage of these synergistic effects to provide a superior formula in an easily absorbable softgel. For immune system support, bone health, and cardiovascular health, take EnDuro D: the dynamic duo for health and well-being.
Superior Vitamin D3 / K2 Formula
Superior structural health combination
Offers powerful defense system support
Helps improve carbohydrate utilization
What are the different forms of vitamin D and why did you select vitamin D3 for EnDuro D?
Vitamin D1. In 1919, German researcher Adolf Windaus discovered three forms of vitamin D: D1, D2, and D3. When it was found that D1 was actually a mixture of compounds instead of a pure vitamin D product, the term D1 was dropped.
Vitamin D2 (ergocalciferol) is the plant-derived form.
Vitamin D3 (cholecalciferol) is the sun-derived form, animal-derived (lanolin) form, and the one we chose for EnDuro D because it effectively raises bodily levels of active vitamin D better than D2.
Maintenance dosage Take 1 softgel daily with meals or separately.
D3 (cholecalciferol) The sun-derived form, animal-derived (lanolin) form, and the form that is believed to effectively raise bodily levels of active vitamin D better than D2.
VITAMIN K
K2 (Menaquinone) The form often found in foods that contain fat and suggested to be a better-absorbed form than K1 that also circulates in the blood longer than K1.
