What Is Vitamin D3 & K2?
Vitamin D and vitamin K are both essential vitamins for regulating the density and structure of our bones. They work together to keep our immune and cardiovascular system functioning at the highest level possible.
Both vitamin D and vitamin K are excellent daily health supplements — but they each work best when taken together, rather than on their own.
Vitamin D comes in two main forms:
Vitamin D2 — ergocalciferol
Vitamin D3 — cholecalciferol
Both forms of the vitamin are important for regulating calcium metabolism, and supporting the health of the bones, immune system, and heart. However, research suggests the best form of vitamin D for supplementation is vitamin D3 — this is the same form of the vitamin naturally produced in the skin when exposed to UV light.
This important vitamin regulates calcium levels to support the formation and regeneration of bone tissue. It’s also essential for the production of lymphocytes that make up a large portion of our immune system.
Vitamin K also comes in two main forms:
Vitamin K1 — phylloquinone
Vitamin K2 — menaquinone
Vitamin K1 is most active in the liver, while K2 is active throughout the body — making it the ideal form of the supplement to support heart and bone health.
This vitamin works closely alongside vitamin D to protect the body from calcium buildup and improves the ability for vitamin D3 to maintain and build strong bones.
The Science Behind Vitamin D3 & K2
1. Mood & Cognition
Seasonal affective disorder (SAD) is common in areas where sun exposure is limited in the winter months. The daylight is much shorter, and cold-weather clothing covers all of our exposed skin. This combination can cause dramatic reductions in vitamin D levels — which relies on exposure to UV to catalyze the production of vitamin D by the body.
Research suggests vitamin D plays a major role in regulating our mood and cognitive function.
2. Bone Formation
Our bones are made up of a combination of a protein called collagen and minerals such as calcium. The collagen helps hold everything together and provides flexibility while the calcium serves as a hard, durable structure for the bulk of the bone tissue.
Bone is a living structure — constantly being broken down and built back up. When bone tissue breaks down it increases calcium levels in the blood. When bone is built back up, blood calcium levels drop. It’s essential that calcium levels remain within a healthy balance to prevent it from depositing in other areas of the body, such as the arteries.
Together, vitamin D3 and vitamin K2 work together to keep calcium levels in balance. When levels dip, vitamin D increases absorption of the mineral from the digestive tract. When calcium levels are too high, vitamin K2 deactivates the molecules to prevent them from forming harmful deposits in the arteries and organs.
Is Vitamin D3 & K2 The Supplement For Me?
Vitamin D is most often used in Northern regions during the winter months. A large portion of our daily vitamin D requirement relies on exposure to UV light from the sun. During the cold, dark, winter months it can be nearly impossible to get enough sun exposure to give us the vitamin D we need to thrive. This can lead to side effects related to our mood, immune system, cardiovascular function, and bone health. Anybody living in the far northern or far southern regions of the world should consider using vitamin D and K supplements.
Additionally, people looking to improve bone density, or slow the natural loss of bone density that comes with age or as a side effect of underlying health conditions or medications may want to consider using supplements with vitamin D and K in combination.
Ingredients & Dosage
Ingredients & Dosage
Amount Per Serving (1 Capsule):
Vitamin D3 (from Cholecalciferol) 4000IU, Vitamin K2 (MK-7) 100μg.
Ingredients:Brown Rice Flour (Bulking Agent), Vitamin D3 (from Cholecalciferol), Vitamin K2 (MK-7), Vegetarian Capsule (Hypromellose).
Take 1 capsule daily with a meal, or as advised by your healthcare professional.