What is the role of Vitamin K2?

> Vitamin K2 is important for cardiovascular health and calcium regulation. It is also vital for immune function, metabolic function, and hormone health. Many people are deficient in vitamin D3, even if they are getting what they think is sufficient sunlight. Vitamin D3 supports a huge number of metabolic factors, immune system factors, and endocrine factors. Vitamin D3 and K2 can be obtained from Athletic Greens, which offers a special offer of 10 free travel packs plus a year's supply of vitamin D3 K2 in the month of January.

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I asked the question “How do barcodes work?” expecting it to be an easy one; “Stuff You Should Know” had a (wildly fascinating) episode on it [0]. However, the response was “No results found.”

[0]: https://www.iheart.com/podcast/105-stuff-you-should-know-269...