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Bio Complete 3

Rated 4.86 out of 5 based on 313 customer ratings
4.86 stars based on 313 Customer Reviews

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Bio Complete 3

Rated 4.86 out of 5 based on 313 customer ratings
4.86 stars based on 313 Customer Reviews

Choose Your Package

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If you’re not 100% satisfied with your product for any reason, you’re covered by our 100% money-back guarantee (does not cover shipping and handling) for 90 days. For refunds, contact our customer support team at (800) 852-0477 and we’ll refund your purchase price, no questions, no hassle.

If you’re not 100% satisfied with your product for any reason, you’re covered by our 100% money-back guarantee (does not cover shipping and handling) for 90 days. For refunds, contact our customer support team at (800) 852-0477 and we’ll refund your purchase price, no questions, no hassle.


Bio Complete 3†

About 70% of your immune system resides in your gut.1 So taking care of your gut is absolutely key for your overall health. Bio Complete 3 helps support a healthy gut lining with prebiotics, probiotics, and post-biotics… so you can keep the good stuff in your gut where it belongs, and support a healthy immune system.* 

With Bio Complete 3 by your side, you can look forward to noticeable results like:

  • Excess weight — especially deep fat — finally becoming easier to lose*
  • Fatigue being replaced by an ABUNDANCE of youthful energy*
  • Digestive issues improving dramatically, or vanishing altogether*
  • Cravings for unhealthy foods feeling like a distant memory*
  • Manufactured in USA / 90-Day Money Back Guarantee / GMP Certified Facility

*Every individual is unique. As such, your results may vary.

What’s in Bio Complete 3?

Product Description†

I designed this unique 3-pronged blend of probiotics, prebiotics, and postbiotics to work together to give your gut a major boost. And once these specialized compounds get to work in your body, don’t be surprised to see your digestion greatly improve… along with your energy levels, weight, and overall health.*
Bio Complete 3 can help you enjoy:

  • A slimmer waistline*†
  • Smoother digestion*†
  • Easier, more regular bathroom visits*†
  • Reduced cravings for unhealthy “junk foods”*†
  • And even more energy*†

* Every individual is unique. As such, your results may vary.


What Are The Main Ingredients In Gundry MD Bio Complete 3?

The main ingredients in Bio Complete 3 are:

  • Tributyrin (as CoreBiome™)
  • Sunfiber®
  • Bacillus Coagulans (ProDURA®)

Other ingredients:

  • Microcrystalline Cellulose
  • Hydroxypropyl Methylcellulose
  • Silica
  • Magnesium Stearate

Is Gundry MD Bio Complete 3 Quality Checked?

Gundry MD Bio Complete 3 contains only pure and natural ingredients. The formula is tested for quality and purity at an independent, 3rd-party facility. However, as a physician, I recommend consulting with your own health care provider before beginning any new program.

How do I use Bio Complete 3?†*

Simply take two small capsules twice per day, preferably before a meal. Bio Complete 3 has been formulated to be ultra-fast absorbing — so it can go right to work in your gut — resulting in a boost in energy and health you can truly feel.

It’s important to take your Bio Complete 3 every day on a consistent basis. I take mine every morning before breakfast and again before dinner. This way, my gut is protected 24/7.

How does Gundry MD Bio Complete 3 work?†*

Bio Complete 3 works to support easier digestion, better weight management, more energy, less unhealthy cravings, and improved muscle strength by using what I call the “3-Pronged Defense” to gut health:

  1. Boost your probiotic levels, so you have an abundance of good gut bacteria
  2. Boost your prebiotic levels, so your good gut bacteria have the proper fuel to thrive
  3. Boost butyrate (a.k.a. postbiotic) levels, so you can achieve an “ironclad” gut lining (and help combat issues of “leaky gut,” like low energy and cravings for unhealthy food)

*Every individual is unique. As such, your results may vary.

What if it doesn’t work for me? Is there a guarantee?†

As a physician, I know that individual bodies can react differently to the very same compounds. Even though everyone can benefit from the powerful probiotics, prebiotics, and butyrate — known in the medical community as a “postbiotic” — in this formula, I’m aware that results can vary. So, if you’re unsatisfied with this product for any reason whatsoever after a full 90 days of use, I’ll return your purchase price, hassle-free… guaranteed.

You can read reviews from Bio Complete 3 lovers below… and you can read all reviews about Gundry MD here.

When can I expect results?†*

Most users report feeling noticeably smoother digestion, less cravings, along with an increase in energy, vitality, and muscle strength in their first week of use. However, the most dramatic results were reported after consistent use over the course of 4 weeks and beyond. Please use as directed. Want to know what other people are saying about BioComplete 3? Check out BioComplete 3 Reviews.

Can I buy Bio Complete 3 anywhere else?

Gundry MD products, including Bio Complete 3, are not sold in retail stores and are not available anywhere else. Please click here for more info.

*Every individual is unique. As such, your results may vary.

Share your thoughts!

4.86 out of 5 stars

313 reviews

Let us know what you think...

What others are saying

  1. Ed T

    4 out of 5 Gut health improved

    Ed T

    Seems like my gut health improved with the use of this product.

  2. herbsfo

    5 out of 5 This product provides fast, noticeable improvements


    If you know your body and you pay attention to it, you’ll likely experience documentable positive change from this product. My partner and I began recognizing subtle improvements within a couple days and the positive change continued over the following weeks.
    Think it’s all in your head?? Nope.
    I wasn’t paying attention and forgot to reorder after finishing a two month supply. We had to go without for several days and it was actually uncomfortable – bloating, gas, irregularity, overall cranky. The refills arrived and within 24 hours we started to feel the improvements again. I know it sounds odd but we both could actually feel the improvement.
    I understand no product works for everyone but this product is absolutely worth a try, because if it works for you – you will love it. If not, you have the Gundry guarantee. […]

  3. jrb5879

    5 out of 5 Best Gut supplement available


    This is hands down, without a doubt the best gut support supplement I have ever taken. I have been a regular user of Lectin Shield for a number of years which I rate highly. But, I had tended to use Lectin Shield on “as needed” basis taken before a meal with questionable ingredients. I take Bio Complete 3 daily. Frankly, it has been life changing. Any residual gut issues I still had after following Dr Gundry’s diet advice for over 4 years now have evaporated. I take it about one hour after getting up and on an empty stomach. No acid reflux, no discomfort and the daily toilet visit is trouble free. My energy levels are like i am back in my 20’s. I crave caffeine much less. Please keep this in stock. Will be taking long term.

  4. gnib_jb

    5 out of 5


    excellent! i feel better since i had this product

  5. lilmangoma

    5 out of 5 Life changing product


    I am in my 50’s. I have been suffering from severe fatigue, brain fog, muscle and joint pain. It was to the point where I was in bed more days than I was up. I had gone to several doctors with the same results-sending me to another doctor. I was fed up! I just wanted to feel better. I started researching my symptoms to find the causes and to find a solution. I decided to try Bio Complete 3. Wow! What a life changing product! I noticed gradual improvement starting the first week. After the second week, I was having more “active” days. It was taking me less time to recover after an “active ” day. I have been taking this for 1 month and I have energy, no muscle and joint pain (even when it rains). I am able to do gardening! I am able to work a full day! I am able to take walks and exercise! Life changing.

  6. Katherine K

    5 out of 5

    Katherine K

    My hair has started growing and my nails are stronger! My hairdresser was very surprised by how much my hair had grown in 6 weeks and it feels thicker too! […]

  7. Ellie

    5 out of 5 New Life


    I can’t wait for 4 weeks because week 1 & 2 have definitely started out with a new life on the horizon!! Thanks Dr. G !

  8. Stephanie

    5 out of 5 Wonderful


    I have had horrible gut issues for years. Within a couple days I noticed the difference. I am feeling so much better & my stomach & bowels have improved tremendously.

  9. Cary Swenson

    5 out of 5 Great Product!

    Cary Swenson

    I’ve been on this for one month and my regularity is substantially increased. I will stay on this product for at least 6 months because it takes time to turn around nutritional deficiencies. Since you can’t always “feel” how a product is working, I want to build up good gut health as I’ve been told about 80% of your immune health is in your gut [..] I trust Dr. Gundry and am willing to give this product a good try.

  10. Susan

    5 out of 5 Keeps hunger away


    Works great

Click here to read all Bio Complete 3 customer reviews.