← All supplements

Lactobacillus acidophilus

Supplement probiotic gut
Aka: L. acidophilus, acidophilus
Brands seen in Singapore: California Gold Nutrition, 21st Century, Garden of Life, NOW Foods, Lemme
Third-party tested: Garden of Life, Lemme certify other products with NSF Certified for Sport, but nothing for lactobacillus acidophilus.Certification is granted per product, so check the tub you actually own. Not being listed is not the same as failing.
Not medical advice. Check with your doctor or pharmacist before you start, stop or change the timing of anything you take.
How to use
What it’s for
Bloating and IBS pain — small, strain-specific trials
Take with
Capsules twice a day in the bloating trial
Studied for
Symptom scores moved over 6–8 weeks in these trials
Pros & cons
Pros
  • Bloating improved vs placebo at 4 and 8 weeks
  • Dds-1 beat placebo on IBS pain scores (n=330)
  • Stool consistency normalised vs placebo in IBS
Cons
  • Limited human evidence for the species on its own
  • Most trials pair it with other strains
  • The bloating trial was small — 60 patients
Sources
  1. NIH NCCIH — Probiotics: Usefulness and Safety · read 2026-08-27
    what it says
    “Different types of probiotics may have different effects. For example, if a specific kind of Lactobacillus helps prevent an illness, that doesn't necessarily mean that another kind of Lactobacillus … would do the same thing.”
  2. NIH NCCIH — Probiotics: Usefulness and Safety, "Can probiotics be harmful?" · read 2026-08-27
    what it says
    “The risk of harmful effects from probiotics is greater in people with severe illnesses or compromised immune systems … Cases of severe or fatal infections have been reported in premature infants who were given probiotics”
  3. Probiotic bacteria Lactobacillus acidophilus NCFM and Bifidobacterium lactis Bi-07 versus placebo for the symptoms of bloating in functional bowel disorders (Ringel-Kulka et al., J Clin Gastroenterol 2011) · read 2026-08-27
    what it says
    “a double-blind, placebo-control clinical trial of the probiotic bacterias L-NCFM and B-LBi07 twice a day (2×10(11) CFU/d) versus placebo over 8 weeks … Sixty patients … Abdominal bloating improved in the probiotics compared with the placebo group”
  4. Lactobacillus acidophilus DDS-1 and Bifidobacterium lactis UABla-12 improve abdominal pain severity and symptomology in IBS (Martoni et al., Nutrients 2020) · read 2026-08-27
    what it says
    “Three hundred and thirty adults … with IBS … L. acidophilus DDS-1 (1 × 10^10 CFU/day) … APS-NRS was significantly improved in both probiotic groups vs. placebo … normalization … in stool consistency in both probiotic groups”
  5. iHerb Singapore — Probiotics category page (default best-selling order) · read 2026-08-27
    what it says
    “California Gold Nutrition, LactoBif® 30 Probiotics, 60 Veggie Capsules”
  6. HSA — Guidelines on prohibited and restricted ingredients in HS and TM (Oct 2025), Annex A/B · read 2026-08-27
    what it says
    “The objective of this guideline is to highlight the substances of concern when used in HS and TM and is not meant to be an exhaustive list.”
  7. HSA — Health Supplements Guidelines (Jan 2026), working definition and Tables 4–5 · read 2026-08-27
    what it says
    “Vitamins, minerals, amino acids, fatty acids, enzymes, probiotics and other bioactive substances … Table 4: Vitamins Limits … Table 5: Minerals Limits”
Report a correction View as JSON

Updated 2026-08-30. Every line above traces to a numbered source. Kozen-X is not a medical device and does not give medical advice. It lists what published sources have written down — nothing more. A pair not listed is unrecorded, not cleared. Before you start, stop or re-time anything, talk to your doctor or pharmacist.