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Theralac & TruFlora for Yeast Infections & Other Digestive Illness

Updated 1/27/2020

Medically Reviewed by Dr. Atmika Paudel, PhD - Written by Dan Jackowiak Nc, HHP

Dr. Atmika Paudel, PhD says... The facts about the probiotic bacteria in Theralac as well as its prebiotic components in the article below are medically correct.

Theralac probiotic is very beneficial for yeast infections because of its patented delivery system that allows the bacteria to survive the stomach acids intact. This delivery system is made from seaweed and grape skins and is unique and exclusive to the manufacturer, no other company has it.

Theralac is a well balanced probiotic with acidophilus species and bifidobacteria. That is what you need because bifidobacteria are the largest bacterial species in the intestine. Studies have shown that some yeast can live right alongside acidophilus without any problems but not bifidobacteria.

Five Probiotic Species Are:

  • Lactobacillus acidophilus – 10 billion CFU (Strain LA-1)
  • Lactobacillus paracasei – 5 billion CFU (Strain F-19)
  • Lactobacillus rhamnosus – 2 billion CFU (Strain LR-44)
  • Bifidobacterium lactis – 10 billion CFU (Strain BL-34)
  • Bifidobacterium lactis – 3 billion CFU (Strain Bi-07)


Formulated at 40 Billion Colony Forming Units - Guaranteed at 20 Billion Colony Forming Units (CFU) through expiration.

Two prebiotics that stimulate probiotics - LactoStim® (patent pending) and Lactoferrin.

Natural acid-proof gel formulation utilizing sodium alginate and grape skin extract protected by US patents 7,122,370 and 7,229,818.

It also contains a patented prebiotic called LactoStim™ that feeds the bacteria without the sugar like most prebiotics. Lactostim is made from Lecithin and Oleic acid, both are fatty acids and sugar free so they won't feed the yeast.

It is made at a dose of 40 billion per capsule and guaranteed to be 20 billion upon expiration. It is heat stable so it will not spoil and grow molds. They suggest one capsule a day for two weeks then 2 capsules a week there after as maintenance. This dose will vary per individual depending upon your own bacterial levels and level of infection so you may have to take more.

One of the prebiotics in this probiotic is lactoferrin. Lactoferrin is an iron binding protein found in every body fluid and a proven immune system stimulator, more information on lactoferrin here.

Bad bacteria and yeast use excess iron to reproduce and multiply and cause infections, it's food for them. By binding it it is not accessible to these bad pathogens but it is to good bacteria who require much less iron.

Theralac Studies Are Impressive

Theralac was recommended in Prevention magazine for irritable bowel syndrome and to strengthen the immune system. The immune system is very important when fighting yeast infections because they are so hard to ge rid of.

Theralac's Clinically Proven Probiotic Strains

*Lactobacillus acidophilus LA-1 (also called NCFM) ----> 10 billion CFU/capsule

Reduces diarrhea in children: Pediatr. Res. 1996; 39 (Part 2): p104

Reduces traveler’s diarrhea: Travel Medicine 1989; Vol1: p333

Reduces lactose intolerance: J. Dairy Sci. 1995; 78: P1657

Reduces symptoms of bowel infections: J. Am. Soc. Nephrol. 1998; 9: p146

*Lactobacillus paracasei F-19 ----> 5 billion CFU/capsule

Effect on C. Diff. colonization in elderly persons: Anaerobe 2001; 7: p 67

Effect on H. pylori infections in children and elderly: in Microbial Ecology in Health and Disease 2002; 14 (Suppl. 3), p17

Survival and safety in human G.I. tract: in Microbial Ecology in Health and Disease 2002; 14 (Suppl. 3), p22

*Bifidobacterium lactis BL-34 (also called Bl-04) ----> 10 billion CFU/capsule

Restores beneficial microflora after antibiotic treatment: J. Medical Microbiology 2009; 58, p663 (randomized, double blind, controlled study).

Demonstrates synergy with prebiotic soluble fiber: Clinical Infectious Diseases 2005; 40: p28

Modulates immune system in human subjects: World J. Gastroenterology 2007; 13 (2): p236 and FEMS Immunology and Medical Microbiology 2003; 38: p165

*Bifidobacterium lactis Bi-07 ----> 3 billion CFU/capsule

Modulates immune system in human subjects: World J. Gastroenterology 2007; 13 (2): p236 and FEMS Immunology and Medical Microbiology 2003; 38: p236

Reduces diarrhea in children: Pediatr. Res. 1996; 39 (Part 2): p104

Restores beneficial microflora after antibiotic treatment: J. Medical Microbiology 2009; 58, p663 (randomized, double blind, controlled study).

A Word About TruFlora

One of the most effective ways to take probiotics is to rotate between different probiotic products. Often though you have an overlap of species or they are not always compatible. The manufacturer has solved this problem by introducing TruFlora™.

TruFlora™ contains three probiotics called Bacillus coagulans, Lactobacillus plantarum, and L. salivarius plus two betaglucan digesting enzymes, Betaglucanase at 400 BGU and Hemicellulase at 10,000 HCU that work together within the contents of the G.I. tract in a bio-cleansing action.


What's interesting is Hemicellulase is a Candida yeast eating enzyme found in products like Candex and Candida Yeast Management. Betaglucanase is also an effective enzyme for yeast infections. Because of this, Theralac with Truflora would also be a very good probiotic to take for maintenance and the prevention of yeast.

The directions for the rotation are simple:

Take Theralac the first day and Truflora the next day, then Theralac the next and Truflora the next and so on. Once you get back to normal you can space it out every 3 days for maintenance.

What you will be doing with this rotation is providing necessary bacteria for immune system defense and the next day you are doing a cleansing action. The company calls it Biotherapy and Bio-cleansing. They also guarantee both constipation and diarrhea will be corrected, digestion and absorption of critical nutrients will improve, and energy levels increase.

Medical Review by Dr. Atmika Paudel, PhD

I am not endorsing any of the products, I would just like to comment on the contents that the products claim to contain. 

Lactobacillus paracasei is a probiotic lactic acid bacteria that has several health benefits. L. paracasei strain 8700:2 has shown effects against pathogens such as Salmonella enterica and Helicobacter pylori. (1)

Bacillus coagulans is another probiotic bacteria that has been long used in veterinary medicine. It has also been found to improve symptoms of gastrointestinal diseases in humans such as abdominal pain and bloating in patients with irritable bowel syndrome.(2)

A paper reviews the safety assessment of B. coagulans here. (3)

A strain of B. coagulans GBI-30, 6086 was found to increase immune response against viral challenge. (4)

I have given my comments in other probiotic strains. For Lactobacillus acidophilus, L. plantarum and L. rhamnosus, please check the this webpage and this one. For Bifidobacterium lactis and additional comments on L. plantarum please take a look at this page and for L. salivarius, please check this webpage.

I have also given my comments in prebiotics and other components mentioned in the above article such as lactoferrin and hemicellulose here and here.

1. Hütt, P., Shchepetova, J., Lõivukene, K., Kullisaar, T. and Mikelsaar, M. (2006), Antagonistic activity of probiotic lactobacilli and bifidobacteria against entero‐ and uropathogens. Journal of Applied Microbiology, 100: 1324-1332. doi:10.1111/j.1365-2672.2006.02857.x
2.  Larysa Hun (2009) Original Research: Bacillus coagulans Significantly Improved Abdominal Pain and Bloating in Patients with IBS, Postgraduate Medicine, 121:2, 119-124, DOI: 10.3810/pgm.2009.03.1984 
3. Safety assessment of a proprietary preparation of a novel Probiotic, Bacillus coagulans, as a food ingredient. Food and Chemical Toxicology. Volume 47, Issue 6, June 2009, Pages 1231-1238
4.  Mira Baron (2009) Original Research: A Patented Strain of Bacillus coagulans Increased Immune Response to Viral Challenge, Postgraduate Medicine, 121:2, 114-118, DOI: 10.3810/pgm.2009.03.1971

You can get both Theralac and Truflora at Amazon

Probiotics for Yeast Home

Any questions about Theralac or Truflora or yeast infections in general? Feel free to contact us through the contact page on this website or see your doctor.

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