Dr. Mercola Vitamins D3 & K2 - Supports Immune, Brain, Cardiovascular, Respiratory & Bone Health - GMO-Free, Gluten-Free & Soy-Free - 30 Capsules (30 Servings)

Very potent D3 which has the necessary K2 for assimilation.

How do I know? I have to trust the manufacturer

Very good products

A little more expensive then the rest, but well worth it!

So glad that Dr. Mercola vitamins are sold here on Amazon. They make quality products & I used to purchase them directly from the Mercola website, but the deliveries from UPS in 2025 have been terrible. Once they lost my order, another time it sat at a facility for over 2 1/2 weeks in limbo. The Mercola customer service was nice, but even they mistakenly sent me the wrong product a third purchase, so finally I stopped buying from them direct. Amazon is just so much faster in sending the items you’ve purchased & never have had a damaged or mixed up order.

Good brand and good product

I’ve tried several different brands of D3 & K2, and this one is definitely one of my favorites. I really like how I feel after taking it — more balanced energy and overall well-being. The quality seems great, and I trust the ingredients. The only downside is the price — it’s definitely on the expensive side, but for me, it feels worth it.

I like these vitamin d3s you have to take them when you take magnesium to make your body absorb magnesium and I like the small size plenty come in this bottle I ate four five every time I take magnesium