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Spore Probiotic

Costco-priced spore probiotic with DE111 B. subtilis (clinically studied). Spore-based means near 100% stomach acid survival. Two strains is minimal but at 1/3 the price of MegaSporeBiotic, it's the budget entry point to spore probiotics.

7.0/10
VERY GOOD

Budget spore-based probiotic available at Costco. DE111 B. subtilis is a clinically studied strain. 8 billion total CFU. No refrigeration needed. Good value entry point for spore probiotics.

2 ingredientsCapsules60 servings
We'd recommend this
Evidence
7.0
Dosing
7.0
Synergy
6.0
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Whenwith meals

Bile from food activates spore germination.

Foodwith food

Spores germinate in the presence of bile salts triggered by food.

SafetyAll clear

Spore probiotics can cause die-off. Start with half dose.

ResearchLimited evidence

DE111 has clinical studies. SNZ 1969 has fewer publications.

What We Like

  • Spore-based strains survive stomach acid.
  • DE111 has published clinical studies.
  • No refrigeration needed (shelf-stable).
  • 60 servings at Costco pricing.
  • Individual strain CFU counts disclosed.

Watch Out For

  • Only 2 strains (less diversity than MegaSporeBiotic's 5).
  • Costco brand may not appeal to quality-focused buyers.
  • B. coagulans SNZ 1969 has less research than some strains.

Ingredient Breakdown

Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
IngredientDoseStatusvs. Clinical
Bacillus coagulans SNZ 1969
5 Billion CFU
5 Billion CFU
Bacillus subtilis DE1117.0
3 Billion CFU
3 Billion CFU
In our database (click to learn more) Not yet reviewed

Our Analysis

Best For

Costco shoppers wanting spore probiotics.People new to spore-based probiotics.Budget-conscious gut health seekers.

Skip This If

Those wanting maximum diversity (MegaSporeBiotic).

Time to Feel

1-3 weeks.

Value

EXCELLENT

How to take: Can use daily long-term.

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