Jump To:
Our Editorial Review
Customer Reviews

Gundry MD Bio Complete 3 Reviews

  This company has claimed this profile, is getting alerted on any new customer reviews entering this page, and may engage in dialogue with its customers to address their matters.

Companies cannot pay money or provide goods in order to remove or alter customer reviews.
Gundry MD Bio Complete 3

Overall Rating

4.4

413 Customer Reviews

Write a Review

Summary

Bio Complete 3 is a dietary supplement by Gundry MD offering prebiotic, probiotic, and postbiotics that are proposed to support optimal gut health. Probiotics have been studied extensively with scientific support for improving GI and immune health.

Pros

  • Research provides scientific support of probiotics for GI health
  • Prebiotics, probiotics, and postbiotics are identified as being generally recognized as safe
  • 90-day money-back guarantee

Cons

  • Lack of strong research supporting decreased levels of fatigue
  • Product effectiveness in weight loss and management requires exercise and diet

Bio Complete 3 Review: Is It Safe and Effective

By Rocklend Davis, Ph. D.

Updated on: Sep 4, 2020

This article contains links that should you click and make a purchase, we may earn a commission from the sale. See our Advertiser Disclosure.

Bio Complete 3 is a dietary supplement containing a proprietary blend of prebiotics, probiotics, and postbiotics that is alleged to support gut health.

To date, most gut health research focuses on gut microbiota, which serves as the site that contains the highest number of bacteria.

Gut health is an extension of your immune system which employs a group of good cells/bacteria that work with the host to promote health.

Because Bio Complete 3 relies on probiotics, its group of bacteria helps develop the microorganisms in the gastrointestinal tract to promote balance and ensure optimal function.

Gundry MD claims that you will experience the following benefits with daily use of their dietary supplement:

  • Weight loss
  • Decrease levels of fatigue
  • Improved digestion
  • Decrease cravings
  • Immune system support

In this article, we will help you understand if there is any science backing these claims by reviewing the available research for the active ingredients.

Effectiveness of the Ingredients: Do They Support the Proposed Benefits?

A serving size is four capsules that contains a proprietary blend of ingredients:

  • Tributyrin (as CoreBiome ®): 1000 mg
  • Sunfiber®: 200 mg
  • Bacillus coagulans (ProDURA®) (2 billion CFU): 16 mg

According to the company, you need to take two capsules, which are absorbed quickly, twice per day before eating to experience benefits for your gut.

Below, we will go over the roles of these ingredients to see if the evidence supports the claimed benefits of Bio Complete 3:

Gas, Bloating, Diarrhea, and Constipation Relief

One of the many claims proposed by Gundry MD is the ability to reduce gas, bloating, diarrhea, and constipation.

Sunfiber® is a dietary fiber contained in the proprietary blend of Bio Complete 3.

Studies have found that a diet that is rich in dietary fiber can be an alternative to promote healthy weight while serving to promote a positive balance in the GI tract, and releasing and regulating hormones that associate with feelings of fullness.

A study demonstrated that Sunfiber®, when given in doses of 5 g/day, was able to normalize stool consistency and promote gut microbiota changes.

Bacillus coagulans is lactic acid and a probiotic culture that aids in the digestion of carbohydrates and proteins. B. coagulans can help to enhance the benefits of prebiotics to help promote the growth of more healthy gut bacteria.

B.coagulans was supplemented in 36 patients diagnosed with Irritable Bowel Syndrome. These patients experienced a significant decrease in clinical symptoms of bloating, diarrhea, vomiting, abdominal pain, and stool frequency.

Immune Support

Medical literature suggests that diets should include probiotics and prebiotics to enhance the immune response. When consumed in adequate amounts, probiotics and prebiotics may provide various health benefits.

A review was able to recently reveal the benefits of prebiotic and probiotics to enhance the immune response to seasonal influenza vaccine in healthy older adults. However, the amount in this study was more than double the amount contained in Bio Complete 3

The functional properties of dietary fibers, such as Sunfiber®, help protect against intestinal infections, activate bowel function, aid in nutrient digestion and absorption, and stimulate the immune response.

However, the dosage amount contained in the proprietary blend of Bio Complete 3 is much less than was used in the available literature, so it may not be adequate in providing the proposed benefits for immune support.

Weight Loss Aid and Decreased Cravings

Partially hydrolyzed guar gum (PHHG), now named Sunfiber®, is currently being used in various forms in beverages, food products, and medicinal foods.

Guar Gum is a dietary fiber and, due to its gel-forming capabilities, is involved with reducing macronutrient absorption and slow gastric emptiness.

Tributyrin is a compound of butyrate that is composed of a short-chain fatty acid that serves as a versatile molecule that is produced in the gut by fermenting dietary fiber and can be enriched in butter and other dairy products.

Butyrate has shown some promising effects in various diseases, including obesity, diabetes, inflammatory bowel disease, and colorectal cancer.

A study of Tributyrin suggests that oral administration of 2g/kg of tributyrin 3 times per week effectively protects against a diet-induced obesity and insulin resistance in mice.

The study showed that tributyrin was directly linked to the inhibition of the proinflammatory mediator production of the white blood cells, protecting skeletal muscle against insulin resistance.

Muscle and Joint Pain Relief

More research is required to determine the role of the proprietary blend of the ingredients in Bio Complete 3 for alleviating symptoms of achy muscle and joints.

However, an older study found a decrease in the inflammatory response. Improved muscle integrity was the most effective when B. coagulans were administered with hydroxymethyl butyrate.

Further, butyrate may serve a role in strengthening the intestinal barrier function.

A study done in both humans and mice produced data that suggests a preventative approach for inflammatory diseases by targeting impaired intestinal barrier function.

This study suggests that a dose of 1 g butyrate may be able to decrease the onset of arthritis from occurring, which is similar to the dosage that is contained in Bio Complete 3.

Summary
The benefits proposed by Gundry MD for the Bio Complete 3 may provide varying results due to dosages that are much less than the ones used in the available studies.

Safety

Tributyrin, when taken orally, can be safe at lower doses, but higher doses greater than 10 g/kg can be toxic. However, the dosage contained in Bio Complete 3 is only 1 g.

No adverse effects were noted when PHGG/Sunfiber® was provided in a study at a dose of 5 g/day in patients with chronic abdominal pain and IBS.

B. coagulans have a history of safe consumption in humans, as indicated from a review of toxicology testing studies.

When comparing dosage amounts, a study found that a B. coagulans dose of 2x10(9) CFU/day was found to be safe and effective in diarrhea-predominant irritable bowel syndrome for 90 days of supplementation.

It is best to take the Bio Complete 3 dietary supplement as indicated on Gundry MD's website. Dosing of any amount should never be increased.

While the safety profile for Bio Complete 3 is favorable, it may not address the underlying cause of your problem.

Therefore, you should seek your physician's opinion if you are experiencing issues affecting your quality of life.

Pricing and Return Policy

Bio Complete 3 is available for sale on Gundry MD’s website and they have options available to provide you savings.

  • 1 Bottle (30 capsules): $49.95
  • 3 Bottles: $134.85
  • 6 Bottles: $254.70

Orders that are over $60 ship for free in the US.

Gundry MD provides a 90-day money-back guarantee, however, this does not cover shipping and handling. In order to process your refund, you will have to contact customer service.

Alternatives to Bio Complete 3

TruBiotics by One A Day could be another option to support digestive and GI health.

TruBiotics offers 2 probiotic strains that have been studied extensively and it is reasonably priced when compared to the many probiotic supplements we have reviewed.

TruBiotics is available in-store or online through Walgreens, CVS, and Rite Aid. It is likely that you will save more with this product but you would be missing out on certain probiotic strains.

  • Walgreens: 30-count $18.99; 45-count $29.99
  • CVS: 30-count $21.99
  • Rite Aid: 3-count $14.99

The Bottom Line

Bio Complete 3 ingredients may offer support in weight management, though some studies used higher doses to achieve results.

The available research also supports the benefits of probiotics in relieving GI issues, with clinical trials being performed in humans.

To achieve the effects of weight loss, however, you should also include a daily routine exercise, and a well-balanced diet to achieve the same results.

Probiotics may offer benefits that support a variety of digestive and health-related issues. However, it is important to first identify the source of any symptoms you may be experiencing.

Further, the proprietary blend of probiotics in Bio Complete 3 has been studied extensively, especially as it pertains to improving the balance of good and bad bacteria that lines your GI tract.

However, because the proprietary blend of ingredients contained in Bio Complete 3 is smaller when compared to dosage in studies, it may not provide the proposed benefits.

Special Offer

Looking for a Way to Get in Shape, Lose Weight, and Improve Your Health?

We recommend the Noom wellness app based on our extensive research and high customer rating. Noom is offering our readers a 14-day trial for a limited time. Click here for this special offer and to learn more about the program.


Customer Reviews

4.4 Stars out of 413 Reviews
5 Star:53% 4 Star:37% 3 Star:5% 2 Star:0% 1 Star:2%
92% Recommend This Product
Start your review of Gundry MD Bio Complete 3:
Sort Reviews By

Posted on Jan 20, 2020

Bio Complete 3 caused constipation and blockage

By Patricia I., Austin, TX, Verified Reviewer

I do not have any chronic gut problems but Dr. Gundy's video was so compelling I decided to give it a try to see if it helped with weight loss as promised. After taking the Bio Complete 3 as directed for 12 days, I noticed that I was feeling constipated, having chronic urges to try to have a BM, and having diarrhea along with the feeling of having a blockage that the loose stools were attempting to work their way around. I had such a hard time, that I purchased an enema, glycerin suppositories, and Seneca tea which finally assisted in clearing the blockage and returning to normal bowel movements. When I wrote to Dr. Gundy MD, I was shocked to receive a reply from a customer service rep who asked me the IDENTICAL QUESTIONS that I was asked a few months ago when I returned pro-biotics to DR. MARTY, a veterinarian who sells probiotics for dogs. My dog had a serious skin reaction to his probiotics. I am thinking the two companies are one and the same, and selling junk science to unsuspecting customers.

Bottom Line: No, I would not recommend this to a friend

Company Response from Gundry MD

Jan 21, 2020

Patricia, I'm very sorry that our Bio Complete 3 was not the right fit for you. We understand that everybody is different so we ask that our customers consult their physician prior to starting any new supplement. Those are not typical side effects so I have escalated your issue to our Customer Relations team. Please expect to hear back within 1-2 business days. With that said, I ask that you email me at aria@gundrymd.com as I'd be more than happy to issue you a full refund. In regards to Dr. Marty, we are in no way associated with that company. Thank you for leaving a review.

Helpful Review? 25 People Have Voted

Posted on Feb 18, 2020

Caused intestinal blockage and severe stomach pain

By Jennifer F., Mineola, TX, Verified Reviewer

I had no previous gut or intestinal problems but Dr. Gundry's video made me want to try the Bio Complete 3 for weight loss and energy. I started taking the 4 pills per day as directed and I felt fine for the first 7 days. Then I started having stomach pain and usually in the middle of the night. The pain became more and more severe. I initially thought it may have been something I ate so I paid attention to everything I was eating. After 3 weeks of this stomach pain, I finally realized the only difference in my diet was the Bio Complete. I've had horrible stomach pain and had to use Milk of Magnesia to help. I've never experienced anything like this. I missed days of work by being laid up on the couch. It's been awful.

I want my normal life back.

Bottom Line: No, I would not recommend this to a friend

Company Response from Gundry MD

Feb 20, 2020

Jennifer, I want to sincerely apologize for the experience you had with our Bio Complete 3. These are not typical side effects of the product so I am very sorry to read you had to go through this. As always, we ask that our customers consult their physicians prior to starting any new supplement to ensure there are no interactions or allergic reactions to the ingredients. I want to let you know that I've escalated this to our Customer Relations team. Please expect one of our representatives to contact you to get more feedback and ensure you are doing better. In the meanwhile, I will ensure you are fully refunded. I hope you are feeling better and my email is aria@gundrymd.com if you ever have any questions or concerns.

Helpful Review? 5 People Have Voted

Posted on Mar 1, 2020

Constipated

By Doris S., Arkansas, Verified Reviewer

Since battling constipation for 50 years and overweight most of those, I decided to try Bio Complete 3 after alerting my doctor to what I was doing. Taking 4 capsules (as directed on the bottle) at the same time each morning, the constipation is worsened to where 2 oz.prune juice, 1 stool softener, 2 tbsp Metamucil, and 4 pieces of fruit a day (apple, orange, banana and fruit cups in its own juice) have caused me to resort to enemas. I am on Weight Watchers and have lost over 100 lbs, but still watch every item I put in my mouth. When I finish the bottle I will return to regular probiotics as I have COPD and need to protect myself. Not planning on reordering unless I see results in six days when the bottle is empty.

Bottom Line: No, I would not recommend this to a friend

Company Response from Gundry MD

Mar 2, 2020

Hi Doris, thank you for consulting your physician prior to beginning Bio Complete 3 and for giving the product a try. I'm very sorry to read that this was your experience. We understand that our products may work well for some but not others, which is why we will always stand by our 90-day money-back guarantee. I've gone ahead and initiated a full refund for your order; please expect an email confirmation within the next 1-2 business days. If you have any other questions, please don't hesitate to reach out to me at aria@gundrymd.com and I'd be more than happy to assist you.

Helpful Review? 3 People Have Voted

Posted on Mar 14, 2020

Bio Complete 3

By Edward H., Nampa, ID, Verified Reviewer

Into my 2nd bottle and it has not worked for me. I lost my regular bowel habit and hard to go to the restroom, and also have gained weight instead of losing! I think I wasted my money! I had used Restore before with no problems!

Bottom Line: No, I would not recommend this to a friend

Company Response from Gundry MD

Mar 16, 2020

Edward, I'm very sorry Bio Complete 3 was not what you had expected. As always, we do recommend our customers consult their physicians prior to starting any new supplement. We understand that our products work differently for everybody so we will always honor our 90-day money-back guarantee. Please email me at aria@gundrymd.com and I'd be happy to get that process started for you right away.

Posted on Mar 23, 2020

Bio Complete 3 review

By Olufemi F., Pennsylvania, Verified Reviewer

I have been using Bio Complete 3 for about 3 weeks now after watching the presentation of Dr. Gundry about how the supplement can help with weight loss. I never had a problem with bloating or moving my bowels but I thought it will help me to lose some weight. I didn't see any changes with my weight after taking 4 capsules a day and my body started to feel different lately. I have been taking Centrum Silver as my supplement for a long time and my doctor knows about it. I have not mentioned Bio Complete 3 to my doctor because I have not been to my doctor's office since I started taking it. I don't think that I will be buying any refill at this time.

Bottom Line: No, I would not recommend this to a friend

Company Response from Gundry MD

Mar 24, 2020

Hello, my name is Aria Goodman with Gundry MD. Thank you for giving Bio Complete 3 a try but as always, we ask that our customers consult their physicians prior to starting any of our supplements to ensure that it is the right product for them. I'd like to offer you a full refund - please email me at aria@gundrymd.com. Thank you.

Posted on Apr 7, 2020

Not for me

By Gideon C., Indio, CA, Verified Reviewer

This product was not for me and there was some misunderstanding on the return policy, but when I called them they made it right. Thank you.

Bottom Line: No, I would not recommend this to a friend

Helpful Review? 4 People Have Voted

Posted on Apr 25, 2020

No luck

By John I., Citrus Springs, FL, Verified Reviewer

I took the product religiously for 1 month with no change in appearance or feeling.

Worst of all I'm being stonewalled on my attempts to get their money-back guarantee. I'm beginning to think it's a scam.

Bottom Line: No, I would not recommend this to a friend

Company Response from Gundry MD

Apr 27, 2020

Hello John, we're so sorry to hear about your experience. Some of our customers see a difference in 30 days, while others may see results in 90 days. We understand that everyone is different, which is why we provide a 90-day money-back guarantee. I've gone ahead and initiated a refund for your order. Please keep an eye out for a confirmation email. If you have any other questions, please don't hesitate to reach out to me at aria@gundrymd.com.

Helpful Review? 2 People Have Voted

Posted on May 19, 2020

Though too early to tell - day 1 resulted in bloating and generally feeling nauseated

By Ellen R., Stamford, CT, Verified Reviewer

I was really taken in by the videos about lepton and other nightshades and nuts that contributed to a leaky gut. Despite eating "clean", I was consuming a lot of tomatoes and zucchinis. I’d been putting on weight despite not changing my eating habits so thought I’d give this a try. Immediately the Bio Complete made me feel nauseated and bloated. Lots of gurgling going on. I took 4 pills as prescribed before dinner. I was up all night feeling uncomfortable and all the next day too. I ate only leptin-free foods but still miserable. I didn’t take any supplements today. I guess I’ll wait to see how tomorrow goes and if I’m feeling ok I'll reduce the dosage. Also, despite eating leafy greens the color of BMI was also more yellow. I’m not feeling terribly hopeful at this point but we’ll see in a few days.

Bottom Line: No, I would not recommend this to a friend

Company Response from Gundry MD

May 20, 2020

Hi Ellen, I'm very sorry to hear about your experience with Bio Complete 3. As always, we ask that our customers consult their physician prior to starting any new supplement to ensure it is the right fit. With that said, it does take a couple of weeks for our bodies to adjust to any new supplement introduced to the body. If you decide that Bio Complete 3 is not the right fit for you, please email me at aria@gundrymd.com and I can cancel your subscription order and provide a refund for your order. Thank you!

Helpful Review? 1 Person Has Voted

Posted on Jan 4, 2021

I have used this for 6 weeks now and find absolutely no effects

By Ian K., Edmonton, Alberta, Canada, Verified Reviewer

From my 6-week usage, I believe that this product is truly useless. I have found no effects, positive or negative. I think that it is a complete waste of money and would recommend that people avoid this.

Length of Use: Less than 3 months

Bottom Line: No, I would not recommend this to a friend

Pros and Cons

No “pros” were specified in this review

It did not have any effect that I was able to see

Company Response from Gundry MD

Jan 6, 2021

Hi Ian, this is Aria from Gundry MD here! I apologize for your negative experience using this product. Some of our customers see a difference in 30 days, while others see a difference in 90 days - it really does depend on the person. We always stand by our 90 Day Money Back Guarantee! Please feel free to email me directly at aria@gundrymd.com for more information on this.

Posted on Oct 18, 2022

Everything I eat runs right through me.

By Andrew V., Appleton, WI, Verified Reviewer

After watching the video about all the great things that Bio Complete 3 can do, I was excited to give it a shot and made a multi-bottle purchase, in hopes of ridding myself of struggling on the throne.

Even though I was excited about solving my constipation problem, I proceeded with caution. Started with one pill on the first day, two pills on days 2 and 3, three pills on day 4, and finally on day five I tossed back all 4 pills. Now I’m on day 10, laying in bed awake because my stomach is making so much noise. I’m hungry and bloated. Everything I eat runs through me like a freight train and exits violently, and very loudly. The diarrhea started about 36–48 hours ago, but I just thought it was something I ate.

Today I had a banana, some pistachios, a salad with some chicken breast for lunch, and an avocado as an afternoon snack. I’ve literary had to poo 7 times today. For dinner, I decided to go super bland and just had a small bowl of oatmeal. Thinking I was in the clear after about 4–5 hours, I climbed into bed. After an hour of sleep, I was woken by a desperate urge. I almost didn't make it to the toilet. It was too loud and violent, it woke my wife.

After cleaning up I decided to start looking to see if anyone else had encountered these same struggles, and it looks like I'm not alone.

I do not recommend trying this product and will begin attempting at a refund in the morning.

Length of Use: Less than 3 months

Bottom Line: No, I would not recommend this to a friend

Pros and Cons

Exciting advertising

I had diarrhea for 3 days strait.

Craziest gas I’ve ever had in my life!

Company Response from Gundry MD

Nov 9, 2022

Hello Andrew. My name is Aria, I am with Gundry MD. I am very sorry to hear about your experience. However, when taking a probiotic, what you mentioned can be normal. Some customers may experience what is commonly known as die-off symptoms. Die-off symptoms occur when the bad bacteria inside of your body are killed off. The bacteria releases toxins which your body does its best to rid itself of, resulting in some unpleasant but short-lived side effects. Most customers do not experience this, but some may, depending on how much bad bacteria is inside your body. Die-off symptoms can include gas, bloating, constipation, diarrhea, skin breakouts, and various other stomach flu-like symptoms. For most people, this can be anywhere from 2-5 days but this may last up to two weeks. I can assure you, however, that these symptoms are very temporary and quite normal whenever a big change is made to someone's diet, lifestyle, or even their supplemental regimen. Other customers in similar situations have seen success by increasing their daily water intake and avoiding processed foods. As well as adding raw vegetables to their diet, such as asparagus, garlic, dandelion greens, chicory root, artichokes, and onions. These vegetables contain natural prebiotics, which can greatly improve the effectiveness of your supplements. While most customers enjoy our formulas, we understand that they may not be for everyone. For this reason, we stand by our 90-day money-back guarantee. If for any reason you are unhappy with our product. It may be returned for a full refund. If you ever have any questions, please do not hesitate to reach out. My email is aria@gundrymd.com. Have a nice day.

Helpful Review? 4 People Have Voted

Posted on Mar 12, 2020

Bio Complete 3

By Marsha F., Myrtle Beach, SC, Verified Reviewer

I have been using Bio Complete 3 for 3.5 weeks. There is no doubt that I am having less constipation, which is great! However, my concern is that the color of my bowels has turned yellow. This has me concerned. The color is usually brown. I stopped taking the Bio Complete 3 for 2 days and although slightly constipated (again) the color returned to brown. I have read that yellow bowel color is not good. I'd like to know if anyone else has had this problem and if after time this goes away.

Bottom Line: No, I would not recommend this to a friend

Company Response from Gundry MD

Mar 12, 2020

Marsha, as always, we ask that our customers consult their physicians prior to starting any new supplement to ensure that it is the right fit. With that said, I suggest that you stop taking Bio Complete 3 until you've done so. You can find a full list of ingredients on our official website. If you find that Bio Complete 3 is not the product for you, please email me at aria@gundrymd.com and I'd be more than happy to assist you with a full refund.

Helpful Review? 7 People Have Voted
Showing 1-11 of 413

Our Promise to You

In order to safeguard you and ensure helpfulness and relevance, our compliance team manually assess every customer review before it goes live.

We have a zero-tolerance policy for fake reviews, and companies cannot control or alter any reviews at any time.