Primal Defense Ultra Probiotic Formula is manufactured by Garden of Life which is a top-notch probiotic brand. A wide range of potent probiotic strains are used in this product that may help to ease digestive ailments and boost overall health.

So does this product really work? Let’s find out.


This is a probiotic product containing thirteen bacterial strains. It is a vegan friendly brand and the added ingredients in it are gluten free. It also contains traces of iron.

Price (4/5):

The cost of Garden of Life Primal Defense Ultra is $32.80 with 90 capsules in one container. Each capsule costs $0.36 and the recommended dosage is one capsule/ day but you can gradually increase the intake to 2-3 capsules per day if needed.

Average rating (4.5/5):

Based on 1,508 customers reviews on Amazon, this supplement has a rating of 4.5 stars out of which 75% are 5 star reviews.

On i-Herb, this product has a 4.4 star rating based on 43 customer reviews. Out of which 70% are 5 star reviews.

Side effects (3.5/5):

Some customers complained of stomach cramps and abdominal pain after taking this supplement. It is best to take one capsule a day and then gradually increase the dosage to avoid such an occurrence.

CFU (5/5):

This dietary supplement contains 15 billion CFU or colony forming units. According to experts, for a probiotic to be effective, the CFU range in it should be between 1 billion CFU up to 20 billion CFU. Garden of Life Primal Defense Ultra contains 15 billion colony forming units, which is well within the recommended range.

Strains (4.5/5):

Garden Life Primal Defense Ultra contains 13 strains of probiotic bacteria. A variety of bacterial strains ensures excellent efficacy of the product because if the user’s body doesn’t respond to one strain it will respond to another.

Here is what researchers say about the bacterial strains included in this product:

Bacterial Strain               Role Research
1. Lactobacillus Plantarum Treats IBS, Crohn’s disease and helps heal colitis Niedzielin, Krzysztof, 2001.
2. Bacillus Subtilis Relieves constipation and diarrhea, treats IBS BR Belitsky – ‎1998
3. Lactobacillus Paracasei Boosts immunity, increases energy levels S Yonekura – ‎2009
4. Bifidobacterium Longum It facilitates digestive processes, boosts immunity, helpful against diarrhea and cancer O’ Callaghan, van Sinderen, 2016.
5. Lactobacillus Brevis Relieves mouth ulcers related to Behcet’s syndrome, helps treat vaginits, urinary tract infections. J Food Prot. 2011
6. Bifidobacterium Bifidum Boosts immunity, improves digestive health and prevents diarrhea and infections O’ Callaghan, van Sinderen, 2016.
7. Bifidobacterium Breve Stimulates immune system, inhibits E.coli Y Li – ‎2004
8. Bifidobacterium Lactis Produces lactic acid, gets rid of harmful pathogens and improves immunity İ

şlek A, 2014.

9. Lactobacillus Acidophilus Prevents diarrhea, relieves bloating, constipation and treats ulcerative colitis, IBS and urinary tract infections. T Ringel-Kulka – ‎2011
10. Lactobacillus Casei Useful against diarrhea, colitis, infections and pancreatic necrosis CM Galdeano – ‎2006
11. Lactobacillus Rhamnosus Helpful for allergies and bouts of diarrhea. Also useful against skin disorders and respiratory problems Szajewska H, 2015.
12. Lactobacillus Salivarius Fights pathogens and relieves symptoms caused by irritable bowel syndrome. Drago L, 2011.
13. Saccharomyces Boulardii Helps with diarrhea, IBS, ulcerative colitis and lactose intolerance T Kelesidis – ‎2012

Overall rating (4.3/5):

Garden Life Primal Defense Ultra is a potent probiotic supplement for regulating digestion and solving stomach problems.