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I had some blood work done a few months ago and when the doctor was reviewing the results with me, he explained that my Vitamin D level was “extremely low.” It was below “normal” range, and well below the accepted standard for preventing mental health issues like depression. He suggested I find a good Vitamin D supplement to take for a few months to get my levels back up.

Of course, I went right to my QEST4 practitioner and asked her thoughts. She tested me for a few different options and one called Vitamin D3 + K2 by Premier Research Labs came up as good for me.

What is Premier Research Labs?

PRL is a supplement company that offers a comprehensive, whole-food product line with high-quality ingredients. It’s another one of those that doesn’t stick a bunch of junk in their stuff to save money. 

Here’s what I love about PRL:

– They use 100% solvent-free vegetable capsules.

– They do not use products in tablet form, and thus have no need for added binders such as stearate products (which are common even in high-quality supplements).

– They have several fermented products, making their nutrition easier for the body to absorb and utilize.

– They ship to Canada (!!!)

– They make it easy for you to manage your account, create discounts and promotions, etc.

Overall, they are a great company that offers wholesome products I feel comfortable taking myself and offering to clients.

So how was their Vitamin D3 + K2?

Let me tell you. It was great! I began taking 1 capsule a day with a meal (so as to ensure I was taking it with fat since it’s a fat soluble vitamin). Each capsule is 5,000 IU of D3 and 180 mcg of K2.  The capsules are small and easy to swallow. The D3 from a vegan source, for those who care about that. The Vitamin K is from fermented natto, making it more bioavailable, which is cool. 

After a couple months of taking that, I got the blood work done again and my doctor said, “Your Vitamin D levels are beautiful.” What a win!

How can I get Premier Research Labs products?

PRL only sells through professional practitioners. If you have a professional certification of some sort, please click the affiliate link below, fill out your information, and get your account set up!

Registration: Account Information | Premier Research Labs (

If you are not a practitioner, but would like to order PRL supplements, email us at and we’ll make it happen!

If you end up trying any of their stuff, please let me know what you think!

About the author

Hey! My name is Brittan and I live in Utah with my husband and one adorable toddler. I love finding holistic and natural ways to care for myself and my family. I particularly enjoy learning about nutrition, herbal medicine, the emotional, spiritual, and energetic aspects of health, and anything else that contributes to complete wellness. Thanks for joining me!

I am not a doctor. Everything I write about is from my personal experience and perspective. Consult a physician if you have questions specific to your health.

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