Omega + D3

High Potency Triglyceride Omega-3 & Vitamin D Supplement

  • Promotes Heart and Brain Health*
  • Supports Bone Health and Joint Mobility*
  • Helps Boost a Healthy Immune Response*
  • Informed-Sport Certified*
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Delivered every 12 months

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Brain. Heart. Joint Mobility.

Terry Bross

I have high cholesterol so I've taken fish oils for most of my life. This is by far my favorite. I've seen a decrease in inflammation while taking this product which is huge at my age with recovery!

Lauren Thompson

This product is the best fish oil I've ever taken! I genuinely feel less inflammation in my joints, and it's a huge bonus that it gives me a dose of Vitamin D. Omega + D3 keeps me healthy!

Andrea St. Clair

Heart health has always been really important to me. It’s great to find a product that is a 2 in 1. The Omega + D3 is something we are all deficient in. 

Why Choose Omega+D3 Over Other Omega-3 Fish Oil Supplements?

Better value may be at the top of your list for choosing Omega+D3 but toss in the fact this formula is 3rd party tested, contains the most bioavailable form of omega-3 fatty acids and then covers you where sunshine doesn’t - with a high dose of vitamin D.


Proven by rigorous scientific research and tested by unbiased 3rd parties

Natural Triglyceride Omegas

4,000 IUs of Vitamin D (2-1 Product)

Informed-Sport Certified

Made in the U.S.A & backed by our 100% 30-day money back guarantee.

Getting the most out of Omega+D3

Frequently Asked Questions

Customer Reviews

Based on 158 reviews
Wendi Glisson
Game changer

I have always been a fan of Xendurance!! Matt, Jason, and the team. This is the first time I’ve tried extreme endurance. always skeptical, pleasantly surprised, noticeable difference in performance. I’m able to go go go, I feel strong and I crushed my last competition I’m a masters athlete I need all the help I can get
products come and go, but Xendurance is a keeper.

Thank you for choosing Xendurance! We're thrilled to hear that our Omega + D3 product has made a positive impact on your performance. Our team works hard to create products that truly make a difference. Keep crushing those competitions!

Nathan Turner
Try new things

I’ve been seeing ads for a while now on Xendurance and my inner thoughts just kept me skeptical on going through with giving it a try just like most supplements, but I’m glad I said **** it and went ahead and ordered some. I’ve only been taking it a few weeks now, but trust me that’s all it takes to feel a night and day difference with your endurance, strength and especially muscle recovery which is my favorite thing about it. All I could say is if you’re like me stop being skeptical do the research which backs this product up and give it a try it will change your life.

Tami Adamson
Highly recommend for high stress athletes

I own and play on an all female Professional Paintball Team, Femmes Fatale, in the WNXL. I had purchased Xendurance for myself, but decided to have my team of 10 women use uiur product as well over the last 10 days of practice and competition.

Not only did it help us keep up the pace with our energy, but no one had any major aches or pains, and even helped to rid of stress headaches.

Each woman on my team had nothing but praise to how they feel two days after our event ended as well! We’ve never left a tournament not feeling just entirely exhausted both mentally and physically, and this time we ALL feel like we could’ve kept competing another week!

Thank you for such an amazing product to help with keeping our bodies ready for the longevity of our sport!

We're glad to hear that Omega + D3 has been helpful for the team! We recommend this supplement to anyone who is looking for an energy boost and relief from stress.

Blood Pressure Down

Helped to lower my blood pressure and live a healthier lifestyle

Hi Ashley,

Thank you for your kind review of Omega + D3! We're glad to know that it has helped you to live a healthier lifestyle and lower your blood pressure.

Thomas Call
Best around

Great product, would recommend.

Thank you for taking the time to leave a review for our Omega + D3 product. We strive to provide top-quality products for our customers, and we appreciate your support. We hope it continues to meet your expectations and help you reach your fitness goals.

Korey Fukui
Unsure of results

I was using this supplement for about 2 weeks and wanted to see if there were any improvements running the Los Angeles Marathon. I also previously trained for the past 4 months completing approximately 30mi a week for this event.

During the marathon, everything felt great for the first 16-18 miles (typically I don't experience any problems during this stretch), but I will usually start feeling my legs tighten up around mile 20. At mile 20, my legs tightened up so bad that I needed to walk and it was a struggle finishing. I did hydrate very well this day, but to be fair, it was a lot warmer than expected.

I'm not sure if I was a non-responder to this supplement, but it did not give me the results that I was expecting.

Hi Korey and thank you for your feedback.. Most people use Extreme Endurance for marathons, 10Ks and ultra distance runs so we would recommend you try Extreme Endurance to improve your times and recovery.

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