Bio Complete 3 Review: Legit or Scam?
Bio Complete 3 is a dietary supplement created by Dr. Steven Gundry, a doctor who’s well-known for his promotion of gut-health supplements.
Gundry states he believes that beneficial microbes in your digestive tract are the key to good digestive functioning, as well as overall health.
Bio Complete 3 is part of his ‘Gut Health Starter Kit’ that also includes MCT Wellness and Total Restore.
Below, we take a look at the available research regarding the claimed benefits of Bio Complete 3, customer reviews, and let you know if we think it's worth buying.
How Does it Work?
The Bio Complete 3 formula approaches gut health by supplying three key ingredients: probiotics, prebiotics, and postbiotics.
By now, most people are aware of the benefits of probiotics, but not necessarily about prebiotics and postbiotics
Gundry states that he believes that these ingredients provide the ultimate support for building healthy gut flora when taken together.
He claims the resulting benefits include:
- Easier digestion
- Help with weight management
- Increase in energy
- Gut lining support
- Minimize unhealthy food cravings
- Cognitive support
- Improvements in skin health
Bio Complete 3 includes three blends that are made up of primarily proprietary formulas of probiotics, prebiotics, and postbiotics.
1. Prebiotic Blend (450mg)
The prebiotic blend contains the following ingredients:
This patent-pending ingredient is commercially produced for supplement makers to include as a boost to probiotic products.
SunFiber® partially hydrolyzed guar gum (PHGG)
Another proprietary ingredient, this plant derived soluble fiber has a number of benefits. The company manufacturing Sunfiber states that it is clinically shown to
- regulate diarrhea and constipation 
- maintain microflora and digestive health
- increases satiety
They also believe SunFiber is superior to other fiber supplement on the market because, unlike Inulin and other soluble fibers, SunFiber ferments in the gut slowly, reducing the chances of bloating and gas.
The manufacturer's website links to a number of studies supporting their claims.
For instance, one study on athletes found that PHGG:
- improves gastrointestinal health
- results in diarrhea reduction and improves lifestyle quality
- PHGG fiber diet is critical for microbiota of subjects who exercise
- lowers abundance of harmful bacteria and increases energy recovery in athletes
2. Postbiotic Blend (300 mg)
The postbiotic blend contains the following ingredients:
This is a saturated short-chain fatty acid that “is a butyric acid precursor and has a key role in anti-inflammatory and intestinal barrier repair effects.” 
Butyrate is critical for gut health because it is an energy source for colonocytes (epithelial cells that line the colon). These cells are vital to a properly functioning gut lining.
Butyrate is also produced by bacterial fermentation of dietary fiber in the colon.  This is also why a diet high in resistant scratches is helpful to your gut.
One animal study used antibiotics to induce gut microbiota disorder in mice to see the influence of Tributyrin on this disorder.
They concluded that,
"we demonstrated the benefits of TB (Tributyrin) supplementation on gut microbiota disorder caused by antibiotics. Our results revealed that TB might restore gut microbiota to produce SCFAs, inhibit the over-activation of the NLRP3 inflammasome and attenuate intestinal injury.” 
There is even a currently ongoing study testing the effects of Tributyrin supplementation on Parkinson's disease. 
3. Probiotic Blend (22 mg)
The probiotic blend contains the following ingredients:
Bacillus Coagulans (ProDura®)
According to Gundry MD this probiotic strain was selected because it closely resembles the strains of good bacteria found in the gut, specifically in their ability to resist strong gastric acid and high temperatures. 
Another beneficial strain of probiotics found in adults and children. There is research supporting its potential benefits with one study concluding that,
"Bifidobacteria may exert protective intestinal actions through various mechanisms, and represent promising advances in the fields of prophylaxis and therapy." 
One bottle of Bio Complete 3 contains a 30-day supply, with two capsules meant to be taken daily. The dosage is the same regardless of weight or age.
Customer Reviews & Complaints
GundryMD, the company behind Bio Complete, currently has an A+ rating with the BBB.
The company has an average rating of 3.96 / 5 stars from over 4,000 customer reviews there, with 72 customer complaints filed in the last 12 months.
On Amazon, Bio Complete 3 has mixed reviews with a rating of 3.9 / 5 from over 4,000 customer ratings.
A small number of users complained that Bio Complete 3 can have some pretty extreme side effects when you first begin taking these supplements.
This is particularly true if you take more than the recommended dosage, as the capsules are specially formulated and consuming too many can have a heavy impact on your digestive tract.
Symptoms such as bloating and gassiness are not uncommon when you begin to take fiber and probiotics, so bear this in mind.
While these symptoms are not usually serious, they can be unpleasant to deal with.
In general, across different review sites users mentioned the following:
Positive customer reviews commonly mentioned:
- Increased energy levels
- More regular and smoother bowel movements
- Losing belly fat
- Less bloating
Negative customer reviews commonly mentioned:
- Seeing no changes from taking Bio Complete 3
- More frequent trips to the bathroom
- Too expensive for what it is
If you need to contact customer service at Bio Complete 3, you can call the customer support lie at (800) 852-0477.
GundryMD lists their contact information as:
Telephone: (800) 852-0477
Email: [email protected]
GundryMD.com states that all supplements bought through the Gundry MD website are backed by a 90-day money-back guarantee.
If you aren’t happy with your purchase, you can call the customer support phone line to start your refund process.
Cost & Price Plans
On GundryMD.com you can buy one bottle of Bio Complete 3 for $69.95, including shipping.
You can also get a discount if you make a larger order ( 3 bottles for $188.85 or 6 bottles for $353.70), or sign up for a “My Health Account” and subscription plan.
When you do this, you will receive an automatic monthly shipment of Bio Complete 3 in addition to unique discounts that lower the price to $41.95 per bottle (or more, if you buy in packages of three or six).
You can buy Bio Complete 3 directly from GundryMD.com, as well as on Amazon.
Competitors and Alternatives
Below are some other brands you may have come across while researching gut health.
Align is one of the most popular brands of probiotics.
If you feel that you don’t need the additional prebiotic support, this is a straightforward option that features one strain of probiotics.
The company claims its formula helps soothe occasional abdominal discomfort, gas, and bloating. It contains 5 billion CFU of live bacteria.
It is currently an Amazon Choice selection and has great reviews averaging a 4.7/5 from almost 5k ratings.
SuperGut - (Detailed Review)
We feel this is a really good option for a gut health supplement. Their Prebiotic Fiber Mix focuses on increasing your intake of resistant starch.
This type of prebiotic fiber is designed to feed the good bacteria in your gut along with other benefits like supporting a healthy weight, blood sugar control, improved digestion, and reduced inflammation.
Supergut is one of few supplements that has clinical research support for the supplement itself (not just for the individual ingredients).
It is also "Monash University Low FODMAP Certified". One packet provides 8g prebiotic fiber, 1g of net carbs, 0g sugar, and only 15 calories.
Emma Digestive Relief
The key difference to Bio Complete 3 is that Emma contains no pro/post/pre biotics.
Instead their formula relies on a combination of herbs featured in traditional medicines such as Berberine and Deglycyrrhizinated Licorice.
It also makes use of Quercetin, Resveratrol and other common vitamins and minerals.
Overall, we do not recommend Emma. This is due to the limited scientific support for their ingredients and the significant number of negative reviews the product has received on Reviewopedia.
The Bottom Line
Bio Complete 3 combines three proprietary ingredients that have manufacturer backed research supporting their benefits.
Although the research is promising, it appears that, based on dosage, the highlight of this formula is Tributyrin.
While the SunFiber has the most research supporting its use there is only 450mg of it found in Bio Complete 3.
SunFiber actually makes their own SunFiber GI supplement that includes 6 grams of guar fiber and 8 billion CFUs of bifidobacterium lactic strain of probiotic.
It’s an "Amazon Choice" product with good reviews from customers.
Given that the National Food Consumption Survey estimates that only 5% of people are meeting their fiber intake requirements, focusing on fiber could be a good starting point in addressing gut issues.
Bio Complete 3 is regarded as generally safe, but it's a good idea to consult with your doctor before taking any new supplements, especially if you are on other medications.
If you have any experience with Gundry MD Bio Complete 3, please leave your reviews below.
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