Although a great deal of research has been done on probiotics, much remains to be learned.

there is a growing body of evidence supporting the efficacy of some specific strains of probiotics as in the treatment of diarrhea caused by infections or antibiotics. They have also been claimed to help with symptoms of irritable bowel syndrome however benefits have not been conclusively demonstrated, and not all probiotics have the same effects.

The science underlying microbe-based treatments, however, shows that most of the health claims for probiotics are pure hype. The majority of studies to date have failed to reveal any benefits in individuals who are already healthy. The bacteria seem to help only those people suffering from a few specific intestinal disorders.

The idea that consuming probiotics can boost the ability of already well-functioning native bacteria to promote general health is dubious for a couple of reasons. Manufacturers of probiotics often select specific bacterial strains for their products because they know how to grow them in large numbers, not because they are adapted to the human gut or known to improve health. The particular strains of Bifidobacterium or Lactobacillus that are typically found in many yogurts and pills may not be the same kind that can survive the highly acidic environment of the human stomach and from there colonize the gut.

Even if some of the bacteria in a probiotic managed to survive and propagate in the intestine, there would likely be far too few of them to dramatically alter the overall composition of one’s internal ecosystem. Whereas the human gut contains tens of trillions of bacteria, there are only between 100 million and a few hundred billion bacteria in a typical serving of yogurt or a microbe-filled pill. Last year a team of scientists at the University of Copenhagen published a review of seven randomized, placebo-controlled trials (the most scientifically rigorous types of studies researchers know how to conduct) investigating whether probiotic supplements—including biscuits, milk-based drinks and capsules—change the diversity of bacteria in fecal samples. Only one study—of 34 healthy volunteers—found a statistically significant change, and there was no indication that it provided a clinical benefit. “A probiotic is still just a drop in a bucket,” says Shira Doron, an infectious disease expert at Tufts Medical Center. “The gut always has orders of magnitude more microbes.”

In the past five years, for example, several combined analyses of dozens of studies have concluded that probiotics may help prevent some common side effects of treatment with antibiotics. Whenever physicians prescribe these medications, they know they stand a good chance of annihilating entire communities of beneficial bacteria in the intestine, along with whatever problem-causing microbes they are trying to dispel. Normally the body just needs to grab a few bacteria from the environment to reestablish a healthy microbiome. But sometimes the emptied niches get filled up with harmful bacteria that secrete toxins, causing inflammation in the intestine and triggering diarrhea. Adding yogurt or other probiotics—especially the kinds that contain Lactobacillus—during and after a course of antibiotics seems to decrease the chances of subsequently developing these opportunistic infections.

Probiotics to treat a variety of symptoms:

Digestive disorders such as diarrhea caused by infections, antibiotic-associated diarrhea, irritable bowel syndrome, and inflammatory bowel disease
Allergic disorders such as atopic dermatitis (eczema) and allergic rhinitis (hay fever)
Tooth decay, periodontal disease, and other oral health problems
Colic in infants
Liver disease
The common cold
Prevention of necrotizing enterocolitis in very low birth weight infants.

The U.S. Food and Drug Administration (FDA) has not approved any probiotics for preventing or treating any health problem. Some experts have cautioned that the rapid growth in marketing and use of probiotics may have outpaced scientific research for many of their proposed uses and benefits.


Metrics to look at:

  • CFU count
  • Strains
  • Which Strains
  • Good For
  • Shelf stability
  • Delivery mechanism
  • Source [organic/ natural]

Good for:


Review sites: https://labdoor.com/review/culturelle-digestive-health-probiotic#see-more



True biotics https://www.amazon.com/dp/B00ER6POYU?th=1 502

Florastor https://www.amazon.com/dp/B00HHM4LXG?th=1 1,449

Florastor Max Strength https://www.amazon.com/dp/B01NB0G1V8 649

Align https://www.amazon.com/dp/B0031RGL66 1,516

Earths Pearl https://www.amazon.com/dp/B00N1G17GG?th=1 2,135

Garden of Life: for Men https://www.amazon.com/dp/B00Y8MP5VA 200

Garden of Life: for Women https://www.amazon.com/dp/B00Y8MP4G6 646

BioShwartz https://www.amazon.com/dp/B00SGF5N1M 1,516

RenewLife: UltimateFlora https://www.amazon.com/dp/B001LIW11Q 1,586

RenewLife: Womens Care https://www.amazon.com/dp/B004ZNDFIW 506

Nutrition Essentials https://www.amazon.com/dp/B00L3JTHME 10,324

Hyperbiotics Pro-15 https://www.amazon.com/dp/B00JEKYNZA 7,157

Dr Tobias https://www.amazon.com/dp/B00WZ4VQ52/ 3,883

Culturelle Digestive Health https://www.amazon.com/dp/B0025ASIRK/ 500