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Stubborn Vitamin D Levels? People Swear By This Supplement To Reach Sufficiency

Morgan Chamberlain
Author:
June 19, 2025
Morgan Chamberlain
Former mbg Supplement Editor
By Morgan Chamberlain
Former mbg Supplement Editor
Morgan Chamberlain is mindbodygreen's former supplement editor. She graduated from Syracuse University with a Bachelor of Science degree in magazine journalism and a minor in nutrition.
laughing woman resting
Image by TRINETTE REED / Stocksy
June 19, 2025

Most U.S. adults fail to consume even small amounts of vitamin D on a daily basis—93%1 to 100%2 by some estimates. This translates to around 41% of us U.S. adults3 with a vitamin D insufficiency and 29% of us with a straight-up deficiency.

Sunshine and food alone rarely provide adequate vitamin D. But even many vitamin D supplements are ineffective at raising vitamin D levels. These three main factors are usually to blame:

  1. They feature vitamin D2 instead of D3 (the superior form).
  2. They deliver sub-efficacious doses (i.e., less than 5,000 IU).
  3. They don't include a dietary fat or encourage people to take their vitamin D with a meal or snack that includes healthy fats (to enhance absorption and optimize bioavailability).

As a result, many people supplement with vitamin D for years without moving the needle on their vitamin D levels. If you're struggling to achieve and/or sustain healthy vitamin D status [which leading functional medicine experts agree is a 25(OH)D test result of 50 ng/ml or higher], mindbodygreen's vitamin D3 potency+ might be able to help you out.

With 5,000 IU of organic, sustainable algal D3 and a built-in trio of organic oils (avocado, flaxseed, and olive) to optimize absorption in just one daily gelcap, vitamin D3 potency+ delivers everything you need to raise stubborn vitamin D levels.* 

The result? A truly effective daily supplement that helps people reach and maintain vitamin D sufficiency so they're able to support the body's many D-critical functions—including healthy immune and inflammatory responses, sexual pleasure, oral health, mood support, and muscle function, to name a few.*

Here's what reviewers have to say about their vitamin D status after taking vitamin D3 potency+.

I'm finally seeing results in regulating my vitamin D levels.

"Easy to swallow, no bad taste, and most importantly, I'm finally seeing results in regulating my vitamin D levels. I was not with over-the-counter vitamin D. Quality product that I am thankful I found."*

—Christina S.

Raised my vitamin D levels by 10 points after 30 days.

"So far, so good. Raised my blood test [vitamin D] levels by 10 points after taking the D3 for 30 days. Will do blood work again, but this time I'll have taken 90 days…can't wait to see!"*

—Traci J.

My vitamin D levels are much better now

"I had very low vitamin D3 levels. They're much better now; for some reason my body was not absorbing it."*

—Roberta C.

I take it everyday

"Between living in the northeast and all the sunscreen I use, I know that I am not getting enough vitamin D. This is just so easy to take. I have it on my ‘coffee bin’, along with my other mindbodygreen supplements, so I remember to take it after I eat breakfast!"*

—Jennifer D.

The takeaway

Well, there you have it. Thanks to its efficacious dose of high-quality D3 and built-in fats, mindbodygreen's vitamin D3 potency+ helps people achieve and maintain vitamin D sufficiency after struggling with stubbornly low vitamin D levels.* 

If you, too, grapple with a low vitamin D status, learn more about mbg's vitamin D formula here.

If you are pregnant, breastfeeding, or taking medications, consult with your doctor before starting a supplement routine. It is always optimal to consult with a health care provider when considering what supplements are right for you.
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