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Bio Complete 3 †

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.

  • Availability: In Stock
  • Over 2 Million Bottles Sold
  • 4.8 Rating

Bio Complete 3 †

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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.

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.


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?

Supplement Facts

Serving Size 4 Capsules

Servings Per Container 30

Amount Per Serving %DV
Calories 10
Total Fat 1 g 1%†

Saturated Fat

1 g 5%†
CoreBiome® (Standardized to 30% Tributyrin) 1000 mg **
SunFiber® 200 mg **
Bacillus Coagulans (ProDura®) 16 mg **

† Percent Daily Values are based on a 2,000 calorie diet.

** Daily Value (DV) Not Established

Real Bio Complete 3 Customer Reviews

Actual customers who were compensated for their review. Every individual is different. Result can and will vary.

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Dr. Gundry, MD

Dr. Steven Gundry, MD is one of the world’s most celebrated pediatric heart surgeons, and the author of the best-selling book “The Plant Paradox.” He is the director of the International Heart & Lung Institute in Palm Springs, CA, and the founder / director of the Center for Restorative Medicine in Palm Springs and Santa Barbara.


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.


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.


Gundry MD products, including Bio Complete 3, are not sold in retail stores and are not available anywhere else.

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

Share your thoughts!

4.79 out of 5 stars

544 reviews

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What others are saying

  1. Samantha

    5 out of 5 Bio Complete 3


    I am extremely satisfied with Bio Complete 3 since I began using about 3 weeks ago. I absolutely can tell the difference in my gut, and have been going regularly for the past three weeks.

  2. Millie

    2 out of 5 Not Working Yet


    I’ve been taking this product for almost a month now. The only difference I have noticed so far is that I have a lot of gas and frequent loose stools. I’m hoping this irons out and I begin to see some different changes. Otherwise I will be returning my bottles.

  3. Alison Williams

    5 out of 5 Love it!

    Alison Williams

    Bio Complete 3 is great! I take 4 capsules a day for 5 weeks now and it has made such a difference in my overall health. I’ve got my husband and mother in law taking the capsules and they are feeling better as well. It has cut my cravings for sugar and greasy foods significantly and I am trimming down. Also has cut out the need for snacking.

  4. Jerome Stang

    4 out of 5

    Jerome Stang

    I have taken this product for a week and I feel more energetic.

  5. Barbara J Watson

    5 out of 5 Works!!

    Barbara J Watson

    Making my life so much better. Starting to recommend it to others with similar gut issues.

  6. Maureen Maureen

    4 out of 5 Good product!

    Maureen Maureen

    No more digestive problems. No bloating or gas. Bowel movements are easier.

  7. Heather

    4 out of 5 Surprised me


    I ordered 6 bottles in early 2022 because I wasn’t eating properly and was tired of feeling uncomfortable in my gut and bowel. I determined to take the product without expectation for at least 6 bottles. and have finally refilled my order. About 8 weeks after taking them, I realised I did actually feel much better through my gut and I was in a better routine, and wasn’t getting the brain fatigue that I often felt. This was all good stuff, what I had not expected was how much my face had cleared up. As a sufferer of adult acne well into my 40’s I had resigned myself to break outs which I knew were food related but also hormonal as well. So it’s been many months now and I no longer get pimples, no matter what I eat. sometimes I can feel my skin react and get lumpy but it never matures into a break out, just resolves itself. If a single pimple pops up, it always happens when I have been skipping the tablets, which I do pretty regularly in recent months. I should have run out in October but here we are in late December and I still have half a bottle up my sleeve. This isn’t a market I understand or have researched, but I got good results with this product so am sticking with it.

  8. Diana

    5 out of 5 Amazing


    I have always taken pro biotics but this formula makes my whole digestive system function much more smoothly and regularly. I am just about to finish my first month and intend to continue taking this, recommending it to friends with digestive problems too.

  9. Artis Gray

    5 out of 5 This really works!

    Artis Gray

    I haven’t been on the product long, but I am noticing a big difference in my body.

  10. Cindy

    4 out of 5


    I have only been on it a week so far but I’m noticing some changes