Investigation of the Effects of a Bifidobacterium Breve Strain on Fat Loss in Healthy Adults

A Randomized, Double-blind, Placebo-controlled Study to Investigate the Effects of a Bifidobacterium Breve Strain on Fat Loss in Healthy Adults

Overweight has become a critical issue in North America and the market value of weight loss products is expected to rise as the population becomes more health-conscious and aware of the risks associated with excess body weight. This randomized, placebo-controlled, clinical trial investigates the effect of Bifidobacterium breve supplementation with exercise intervention on fat loss.

Study Overview

• Status: Completed
• Conditions: Obesity; Overweight and Obesity
• Intervention / Treatment: Dietary supplement: Placebo; Dietary supplement: B. breve strain

Detailed Description

In early adulthood, excess body weight is a risk factor associated with several health complications later on in life and probiotics have been used for decades for maintaining intestinal health, and in recent years probiotics have been proposed for weight management. This randomized, placebo-controlled, clinical trial investigates the effect of Bifidobacterium breve supplementation with exercise intervention on fat loss.

• Study Type: Interventional
• Enrollment (Actual): 95
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Canada
  • Ontario
    • London, Ontario, Canada, N6A 5RB
      • KGK Science Inc

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years to 65 years (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Male or female between 20 and 65 years of age, inclusive
• BMI from 25.0 to 29.9 kg/m2, inclusive
• Female participants are not of child-bearing potential, defined as females who have undergone a sterilization procedure (e.g. hysterectomy, bilateral oophorectomy, bilateral tubal ligation, complete endometrial ablation) or have been post-menopausal (natural or surgically) for at least 1 year prior to screening

• Or, Females of child-bearing potential must have a negative baseline urine pregnancy test and agree to use a medically approved method of birth control for the duration of the study. All hormonal birth control must have been in use for a minimum of three months. Acceptable methods of birth control include:

  1. Hormonal contraceptives including oral contraceptives, hormone birth control patch (Ortho Evra), vaginal contraceptive ring (NuvaRing), injectable contraceptives (Depo-Provera, Lunelle), or hormone implant (Norplant System)
  2. Double-barrier method
  3. Intrauterine devices
  4. Non-heterosexual lifestyle or agrees to use contraception if planning on changing to heterosexual partner(s)
  5. Vasectomy of partner at least 6 months prior to screening
• Self-reported stable body weight for the past 3 months defined as not having gained or lost more than 5 kg of body weight throughout the 3 months prior to baseline

• Participants with the following body fat percentages as determined by Bioelectrical Impedance Analysis (BIA):

  1. Female: ≥ 30%
  2. Male: ≥ 20%
• Agrees to follow the diet and exercise guidelines for the duration of the study
• Willingness to complete questionnaires, records, and diaries associated with the study, to complete all clinic visits, and provide stool samples
• Provide voluntary, written, informed consent to participate in the study
• Healthy as determined by medical history, laboratory results and physical exam as assessed by the Qualified Investigator (QI)

Exclusion Criteria

• Women who are pregnant, breastfeeding or planning to become pregnant during the trial
• Allergy, sensitivity, or intolerance to the investigational product's active or inactive ingredients
• Clinically significant abnormal laboratory results at screening as assessed by the QI
• Current or history of any significant gastrointestinal disease requiring medication (e.g. GERD, gastroenteritis)
• Irregular sleep schedule
• Chronic diarrhea or constipation
• Participants with hypertension and are on antihypertensive medication
• Type I or Type II diabetes
• Participants with hyperlipidemia and are on medication
• Self-reported sleep apnea
• Self-reported current or pre-existing thyroid condition. Treatment on a stable dose of medication for at least 3 months will be considered by the QI
• Unstable metabolic disease or chronic diseases as assessed by the QI
• History of or current diagnosis with kidney and/or liver diseases as assessed by the QI on a case-by-case basis, with the exception of history of kidney stones in participants who are symptom-free for 6 months
• Significant cardiovascular event in the past 6 months. Participants with no significant cardiovascular event on stable medication may be included after assessment by the QI on a case by case basis
• Major surgery in the past 3 months or individuals who have planned surgery during the trial period. Participants with minor surgery will be considered on a case-by-case basis by the QI
• Cancer, except skin cancers completely excised with no chemotherapy or radiation with a follow up that is negative. Volunteers with cancer in full remission for more than five years after diagnosis are acceptable
• Individuals with an autoimmune disease or are immune-compromised
• Self-reported HIV-, Hepatitis B- and/or C-positive diagnosis
• Blood/bleeding disorders as determined by laboratory results
• Self-reported mental or neuropsychological condition and/or cognitive impairment that, in the QI's opinion, could interfere with study participation
• Metal implants that may affect the DXA scan results will be assessed on a case- by-case basis by the QI.

• Current use of prescribed medications listed in Section Prescribed Medications as follows:

  1. Beta-blockers and thiazide diuretics (within 4 weeks of baseline)
  2. Weight loss medication (within 4 weeks of baseline)
  3. Lipid-lowering medications (within 4 weeks of baseline)
  4. Anticoagulants and coagulants (within 4 weeks of baseline)
  5. Sleep medication
  6. Selective serotonin reuptake inhibitors (SSRI)
  7. Antibiotics
  8. Non-steroidal anti-inflammatory drugs (NSAIDs)
  9. Proton pump inhibitors (PPIs)
  10. Metformin (unless on a stable dose for the last 6 months)

• Current use of over-the-counter medications, supplements, foods and/or drinks as follows:

  1. OTC NSAIDs (PRN use is acceptable)
  2. OTC blood pressure medication or supplements (within 4 weeks of
  3. baseline)
  4. Lipid metabolising supplements (within 4 weeks of baseline)
  5. Fish oil and omega-3 supplements
  6. Red yeast rice
  7. Plant sterols and stanols
  8. OTC medication or supplements marketed for weight loss (within 4 weeks
  9. of baseline)
  10. Vitamin E supplements (within 4 weeks of baseline)
  11. Coagulant/anticoagulant supplements (within 4 weeks of baseline)
  12. PPIs
• Use of cannabinoid products within 60 days of baseline. History of cannabis used will be assessed on a case by case basis by the QI
• Use of tobacco products within 60 days of baseline
• Self-reported alcohol or drug abuse within the last 12 months
• High alcohol intake (average of > 2 standard drinks per day or > 10 per week)
• Current employment that calls for shift work or have worked shift work in the last 3 weeks
• Participation in other clinical research trials 30 days prior to screening
• Blood donation 30 days prior to screening, during the study, or a planned donation within 30-days of the last study visit
• Individuals who are unable to give informed consent
• Any other condition, that, in the opinion of the QI, may adversely affect the participant's ability to complete the study or its measures, or which may pose a significant risk to the participant

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Quadruple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Placebo Comparator: Placebo; Placebo delivered in capsule format. Participants will be instructed to take 2 capsules of placebo for 4 weeks during the run-in period. On day 1 participants will be instructed to take 2 capsules of placebo in the morning before breakfast for 12 weeks.	Dietary supplement: Placebo; Placebo capsule. Participants will be instructed to take 2 capsules of placebo for 4 weeks during the run-in period. On day 1 participants will be instructed to take 2 capsules of placebo in the morning before breakfast for 12 weeks.
Experimental: B. breve; Capsule containing B breve strain. Participants will be instructed to take 2 capsules of placebo for 4 weeks during the run-in period. On day 1 participants will be instructed to take 2 capsules of B. breve strain in the morning before breakfast for 12 weeks.	Dietary supplement: B. breve strain; Probiotic capsule. Participants will be instructed to take 2 capsules of placebo for 4 weeks during the run-in period. On day 1 participants will be instructed to take 2 capsules of B. breve strain in the morning before breakfast for 12 weeks.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in Fat Loss (g)	The difference in change in fat loss from baseline (g), as assessed by Dual-Energy X-Ray Absorptiometry (DXA), between B. breve and placebo after 12 weeks of supplementation. Body tissue density will be measured by a form of X-ray radiation and converted into body fat and muscle mass percentage for assessment	12 weeks from baseline
Change in Fat Loss (Percentage of Body Weight)	The difference in change in fat loss from baseline (percentage of body weight), as assessed by Dual-Energy X-Ray Absorptiometry (DXA), between B. breve and placebo after 12 weeks of supplementation. Body tissue density will be measured by a form of X-ray radiation and converted into body fat and muscle mass percentage for assessment	12 weeks from baseline

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
BMI	The difference in change from baseline between B. breve and placebo in BMI after 12 weeks of supplementation	12 weeks from baseline
HDL-cholesterol	The difference in change from baseline between B. breve and placebo in HDL-cholesterol after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
LDL-cholesterol	The difference in change from baseline between B. breve and placebo in LDL-cholesterol after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Triglycerides	The difference in change from baseline between B. breve and placebo in triglycerides after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
HbA1c	The difference in change from baseline between B. breve and placebo in HbA1c after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Body Weight	The difference in change from baseline between B. breve and placebo in body weight after 12 weeks of supplementation	12 weeks from baseline
Android/Gynoid Fat Ratio	The difference in change from baseline between B. breve and placebo in android/gynoid fat ratio as assessed by DXA after 12 weeks of supplementation. Android-gynoid percent fat ratio is a pattern of body fat distribution that is associated with an increased risk for metabolic syndrome in healthy adults. The measurement of android/gynoid fat ratio is defined as the ratio of the percentage of android fat to the percentage of gynoid fat.	12 weeks from baseline
Muscle Mass (g)	The difference in change from baseline between B. breve and placebo in muscle mass (g) as assessed by DXA after 12 weeks of supplementation.	12 weeks from baseline
Muscle Mass (Percentage of Body Weight)	The difference in change from baseline between B. breve and placebo in muscle mass (percentage of body weight) as assessed by DXA after 12 weeks of supplementation.	12 weeks from baseline
Waist Circumference	The difference in change from baseline between B. breve and placebo in Waist circumference after 6 and 12 weeks of supplementation.	Baseline, 6 weeks and 12 weeks
Hip Circumference	The difference in change from baseline between B. breve and placebo in hip circumference after 6 and 12 weeks of supplementation.	Baseline, 6 weeks and 12 weeks
Waist/Hip Circumference Ratio	The difference in change from baseline between B. breve and placebo in waist/hip circumference ratio after 6 and 12 weeks of supplementation. The waist/hip circumference ratio is defined as the percentage of waist circumference to hip circumference. The change in waist/hip circumference ratio from baseline to week 12 was calculated.	Baseline, 6 weeks and 12 weeks
Microbiota Analysis: Shannon Index	Alpha diversity at baseline and after 12-week intake were calculated by R. Alpha diversity index is usually unitless since it is a numerical value calculated by a mathematical formula, not a physical quantity. The Shannon Index (or Shannon-Wiener/Shannon-Weaver index) is a widely used metric in ecology to quantify alpha diversity, which measures both species richness and evenness. The value of the Shannon Index ranges from a minimum of zero, when there is only one species present (no diversity), to a maximum of ln(S), the natural logarithm of the total number of species (richness) to the base of Euler's number (e), which means all species are equally abundant. High values indicate a diverse, balanced community.	12 weeks from baseline
Microbiota Analysis: Chao1 Index	Alpha diversity at baseline and after 12-week intake were calculated by R. Alpha diversity index is usually unitless since it is a numerical value calculated by a mathematical formula, not a physical quantity. The Chao1 Index estimates total species richness, including rare/undetected species. The value of the Chao1 Index ranges from a minimum, close to zero (suggesting reduced richness, often observed in dysbiosis) to a theoretically unbounded maximum, as it depends on rare species. Higher values indicate greater estimated species richness, generally associated with a healthier gut microbiome, linked to resilience, metabolic versatility, and protection against pathogens.	12 weeks from baseline
Microbiota Analysis: Evenness Index	Alpha diversity at baseline and after 12-week intake were calculated by R. Alpha diversity index is usually unitless since it is a numerical value calculated by a mathematical formula, not a physical quantity. The Evenness Index measures how evenly individuals are distributed among species in a community, such as the gut microbiome. It complements species richness (the number of species) to describe diversity, ranging from 0 (only a single species, meaning there is no evenness.) to 1, where 1 indicates perfect evenness, meaning all species are equally abundant. Higher Evenness Index value (closer to 1) is generally considered better, as it suggests a more balanced and stable ecosystem. Conversely, lower value (closer to 0) is generally considered worse, as it suggests that a few species dominate the community, which can be associated with dysbiosis or an unhealthy gut microbiome.	12 weeks from baseline
Microbiota Analysis: Observed ASV Index	Alpha diversity at baseline and after 12-week intake were calculated by R. Alpha diversity index is usually unitless since it is a numerical value calculated by a mathematical formula, not a physical quantity. Observed ASV (Amplicon Sequence Variants) Index refers to the number of distinct Amplicon Sequence Variants (ASVs) detected in a sample. ASVs are highly resolved sequences used to identify and differentiate microbial taxa, providing finer resolution than traditional Operational Taxonomic Units (OTUs). The range of Observed ASV Index in gut microbiome samples can range from a few hundred to several thousand, depending on several factors, including sample source, health status of the host, diet and lifestyle, as well as sequencing depth and methodology. Typically, higher Observed ASV Index indicates a more diverse microbial community, which can contribute to improved gut function and overall health.	12 weeks from baseline
Microbiota Analysis: Faith's PD Index	Alpha diversity at baseline and after 12-week intake were calculated by R. Alpha diversity index is usually unitless since it is a numerical value calculated by a mathematical formula, not a physical quantity. Faith's Phylogenetic Diversity (PD) is a measure used in ecology to quantify the biodiversity of a sample based on the phylogenetic tree. In the context of the gut microbiome, it specifically measures the diversity of microbial species by considering both the number of species present (richness) and the phylogenetic differences between them. In practice, the values can range from very low (close to zero, indicating low microbial diversity linked to various health issues) to very high (indicates greater evolutionary diversity, which may enhance ecosystem resilience and is generally considered better in the context of gut microbiome health.).	12 weeks from baseline
Change in Weight in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in weight in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Body Mass Index in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in body mass index in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Total Body Fat (g) in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in total body fat (g) in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Total Body Fat (% of Body Weight) in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in total body fat (%) in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Muscle Mass (g) in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in muscle mass (g) in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Muscle Mass (% of Body Weight) in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in muscle mass (%) in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Android Fat (g) in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in android fat (g) in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Android Fat (% of Android Tissue) in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in android fat (%) in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Gynoid Fat (g) in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in gynoid fat (g) in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Gynoid Fat (% of Gynoid Tissue) in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in gynoid fat (%) in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Android:Gynoid Fat Ratio in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in android:gynoid fat ratio in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Waist Circumference in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in waist circumference in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Hip Circumference in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in hip circumference, in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Change in Waist:Hip Circumference Ratio in Participant Groups Classified by Microbiota Composition at Week 0	The change from baseline between B. breve and placebo in waist:hip circumference ratio in participant groups classified by microbiota composition at week 0, after 12 weeks of supplementation. These individual outcomes comprise relevant aspects of body composition. Each outcome will be analyzed separately and interpreted separately as well as collectively to inform relevant changes to body composition as a whole during the study.	12 weeks from baseline
Total Cholesterol	The difference in change from baseline between B. breve and placebo in total cholesterol after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Fasting Blood Glucose	The difference in change from baseline between B. breve and placebo in fasting blood glucose after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Fasting Insulin	The difference in change from baseline between B. breve and placebo in fasting insulin after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Alkaline Phosphatase (ALP)	The difference in change from baseline between B. breve and placebo in ALP after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Gamma-glutamyl Transferase (GGT)	The difference in change from baseline between B. breve and placebo in GGT after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Alanine Aminotransferase (ALT)	The difference in change from baseline between B. breve and placebo in ALT after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Aspartate Transaminase (AST)	The difference in change from baseline between B. breve and placebo in AST after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Frequency of Bowel Movements	The difference in change from baseline between B. breve and placebo in Frequency of bowel movements after 6 and 12 weeks of supplementation.	Baseline, 6 and 12 weeks of supplementation

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Urinalysis: microscopy	The difference in change from baseline between B. breve and placebo in microbial composition in urine after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Urinalysis: glucose level	The difference in change from baseline between B. breve and placebo in glucose levels in the urine after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Urinalysis: ketones	The difference in change from baseline between B. breve and placebo in urine ketone levels after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Urinalysis: specific gravity	The difference in change from baseline between B. breve and placebo in urine specific gravity after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Urinalysis: blood content	The difference in change from baseline between B. breve and placebo in blood content in urine after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Urinalysis: protein level	The difference in change from baseline between B. breve and placebo in protein levels in urine after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Urinalysis: nitrite level	The difference in change from baseline between B. breve and placebo in nitrite levels in urine after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Urinalysis: leukocyte count	The difference in change from baseline between B. breve and placebo in leukocyte count in urine after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Urinalysis: Urine color	Visual analysis of the difference in change from baseline between B. breve and placebo in urine color after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Urinalysis: Urine appearance	Visual analysis of the difference in change from baseline between B. breve and placebo in urine appearance after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Urinalysis: bilirubin levels	The difference in change from baseline between B. breve and placebo in urine levels of bilirubin after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Urinalysis: urobilinogen levels	The difference in change from baseline between B. breve and placebo in urine levels of urobilinogen after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Urinalysis: urine pH	The difference in change from baseline between B. breve and placebo in urine pH after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Mean platelet volume (MPV)	The difference in change from baseline between B. breve and placebo in MPV after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Red cell distribution width (RDW)	The difference in change from baseline between B. breve and placebo in RDW after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Mean corpuscular hemoglobin concentration (MCHC)	The difference in change from baseline between B. breve and placebo in MCHC after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Mean corpuscular hemoglobin (MCH)	The difference in change from baseline between B. breve and placebo in MCH after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Mean corpuscular volume (MCV)	The difference in change from baseline between B. breve and placebo in MCV after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Platelet count	The difference in change from baseline between B. breve and placebo in platelet count after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Hematocrit	The difference in change from baseline between B. breve and placebo in hematocrit after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Hemoglobin	The difference in change from baseline between B. breve and placebo in hemoglobin after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Red blood cell (RBC) count	The difference in change from baseline between B. breve and placebo in RBC after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Basophil count	The difference in change from baseline between B. breve and placebo in basophil count after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Eosinophil count	The difference in change from baseline between B. breve and placebo in eosinophil count after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Monocyte count	The difference in change from baseline between B. breve and placebo in monocyte count after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Lymphocyte count	The difference in change from baseline between B. breve and placebo in lymphocyte count after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Neutrophil count	The difference in change from baseline between B. breve and placebo in neutrophil count after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
White blood cell (WBC)	The difference in change from baseline between B. breve and placebo in WBC after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Estimated glomerular filtration rate (eGFR)	The difference in change from baseline between B. breve and placebo in GFR after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Phosphate ion	The difference in change from baseline between B. breve and placebo in phosphate ion after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Magnesium ion concentration	The difference in change from baseline between B. breve and placebo in magnesium ion concentration after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Ferrous ion concentration	The difference in change from baseline between B. breve and placebo in ferrous ion concentration after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Calcium ion concentration	The difference in change from baseline between B. breve and placebo in calcium ion concentration after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Chloride ion concentration	The difference in change from baseline between B. breve and placebo in chloride ion concentration after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Potassium ion concentration	The difference in change from baseline between B. breve and placebo in potassium ion after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Sodium ion concentration	The difference in change from baseline between B. breve and placebo in sodium ion concentration after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
blood urea nitrogen (BUN)	The difference in change from baseline between B. breve and placebo in BUN after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Creatinine concentration	The difference in change from baseline between B. breve and placebo in creatinine level after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Total bilirubin	The difference in change from baseline between B. breve and placebo in body temperature after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Body temperature	The difference in change from baseline between B. breve and placebo in body temperature after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Respiratory rate	The difference in change from baseline between B. breve and placebo in respiratory rate after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Heart rate (HR)	The difference in change from baseline between B. breve and placebo in heart rate after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation
Blood pressure (BP)	The difference in change from baseline between B. breve and placebo in both systolic and diastolic blood pressure after 12 weeks of supplementation.	Baseline and 12 weeks of supplementation

Collaborators and Investigators

• Sponsor: Morinaga Milk Industry Co., LTD
• Collaborators: KGK Science Inc.
• Investigators: Principal Investigator: David Crowley, MD, KGK Science Inc.

Study record dates

Study Major Dates

• Study Start (Actual): August 20, 2020
• Primary Completion (Actual): January 5, 2024
• Study Completion (Actual): January 5, 2024

Study Registration Dates

• First Submitted: August 18, 2020
• First Submitted That Met QC Criteria: December 15, 2020
• First Posted (Actual): December 21, 2020

Study Record Updates

• Last Update Posted (Actual): October 20, 2025
• Last Update Submitted That Met QC Criteria: October 1, 2025
• Last Verified: October 1, 2023

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Nutrition Disorders; Overnutrition; Body Weight; Pathological Conditions, Signs and Symptoms; Nutritional and Metabolic Diseases; Signs and Symptoms; Overweight; Obesity
• Other Study ID Numbers: 20BWHM

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No