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Black Elderberry with Zinc + D3 - Advanced Immune Support

Why doesn't Advanced Immune Support - Black Elderberry with Zinc + Vitamin D3 contain Vitamin K2?

Dr. Berg designed this supplement as an "Advanced Immune Support" tool intended for short-term use. It is specifically formulated to provide a high-potency boost (15,000 IU of Vitamin D3) to help someone with a weakened immune system or during an act