A Clinical Trial to Investigate the Acute Effect of Bragg Apple Cider Vinegar Supplement on Blood Glucose Control in a Healthy Adult Population

NCT ID: NCT07100977

Last Updated: 2026-01-09

Basic Information

• Recruitment Status: NOT_YET_RECRUITING
• Clinical Phase: NA
• Total Enrollment: 24 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2026-01-31
• Study Completion Date: 2026-02-28

Brief Summary

The goal of this clinical trial is to evaluate the efficacy of a Bragg ACV supplement on postprandial glucose excursion compared to a placebo following a standardized acute carbohydrate load.

Participants will be asked to consume an apple cider vinegar supplement 10 minutes prior to a standardized meal.

Conditions

Postprandial Glucose; Blood Glucose Concentration

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: TREATMENT
• Blinding Strategy: TRIPLE

Study Groups

Bragg ACV Supplement

Bragg Apple Cider Vinegar (ACV) Supplement contains apple cider vinegar (standardized to 750 mg of acetic acid), zinc, and vitamin D.

Group Type: EXPERIMENTAL

Bragg ACV Supplement

Intervention Type: DIETARY_SUPPLEMENT

Participants will be instructed to consume 1 capsule of either Bragg ACV Supplement or placebo 10 minutes prior to consumption of a standardized meal.

Placebo

Placebo supplement contains microcrystalline cellulose.

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: OTHER

Participants will be instructed to consume 1 capsule of either Bragg ACV Supplement or placebo 10 minutes prior to consumption of a standardized meal.

Interventions

Bragg ACV Supplement

Participants will be instructed to consume 1 capsule of either Bragg ACV Supplement or placebo 10 minutes prior to consumption of a standardized meal.

Intervention Type: DIETARY_SUPPLEMENT

Placebo

Participants will be instructed to consume 1 capsule of either Bragg ACV Supplement or placebo 10 minutes prior to consumption of a standardized meal.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

1. Males and females 20 - 65 years of age, inclusive

2. Females not of child-bearing potential, defined as those who have undergone a sterilization procedure (e.g. hysterectomy, bilateral oophorectomy, bilateral tubal ligation, complete endometrial ablation) or have been post-menopausal for at least 1 year prior to screening

Or,

Individuals 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:

• 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)
• Double-barrier method
• Intrauterine devices
• Non-heterosexual lifestyle and agrees to use contraception if planning on changing to heterosexual partner(s)
• Vasectomy of partner at least 6 months prior to screening
• Abstinence and agrees to use contraception if planning on becoming sexually active during the study

3. Subjects with elevated fasting glucose > 5.6 mmol/L (> 100 mg/dL) and < 7.0 mmol/L (< 126 mg/dL) and/or elevated HbA1c (6.0-6.4%) and two or more of the other following markers associated with metabolic syndrome at screening:

1. Abdominal obesity: waist circumference > 102 cm (40 inches) in men and > 88 cm (35 inches) in women

2. Hypertension: systolic blood pressure > 130 mmHg or diastolic blood pressure > 85 mmHg

3. Elevated TG: > 150 mg/dL (1.7 mmol/L)

4. Low HDL-C: < 40 mg/dL (1.03 mmol/L) in men and < 50 mg/dL (1.29 mmol/L) in women

4. Stable body weight defined as a <5% change in body weight in the three months prior to baseline, as assessed by the Qualified Investigator (QI)

5. Agrees to maintain current lifestyle habits (diet, physical activity, medications, supplements, and sleep) as much as possible throughout the study

6. Agrees to comply with dietary guidelines and study requirements prior to in-clinic visits

7. Provided voluntary, written, informed consent to participate in the study

8. Otherwise healthy as determined by medical history and laboratory results as assessed by the Qualified Investigator (QI).

Exclusion Criteria

1. Individuals who are pregnant, breast feeding, or planning to become pregnant during the study

2. Allergy, sensitivity or intolerance, preventing consumption of investigational product, placebo, or standardized meal

3. Poor venous access as assessed by the QI

4. Current use of prescribed and/or OTC medications, supplements, and/or consumption of food/drinks that may impact the glucose metabolism or efficacy of the investigational product (Sections 7.3.1 and 7.3.2)

5. Unstable metabolic disease or chronic diseases as assessed by the QI

6. Current or history of any significant diseases of the gastrointestinal tract as assessed by the QI

7. Unstable hypertension. Treatment on a stable dose of medication for at least 3 months will be considered by the QI

8. Type I or Type II diabetes

9. 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

10. 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

11. Self-reported confirmation of current or pre-existing thyroid condition. Treatment on a stable dose of medication for at least 3 months will be considered by the QI

12. Major surgery in the past 3 months or individuals who have planned surgery during the course of the study. Participants with minor surgery will be considered on a case-by-case basis by the QI

13. Cancer, except skin basal cell carcinoma 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

14. Individuals with an autoimmune disease or are immune compromised as assessed by the QI

15. Self-reported confirmation of a HIV-, Hepatitis B- and/or C-positive diagnosis as assessed by the QI

16. Self-reported confirmation of blood/bleeding disorders as assessed by the QI

17. Chronic inhalation or edible use of cannabinoid products (>1 time/month). Occasional users must agree to abstain from use while participating in the study

18. Regular use of tobacco or nicotine products in the past six months, as assessed by the QI. Occasional users will be required to washout and abstain for the duration of the study period

19. Alcohol intake average of >2 standard drinks per day as assessed by the QI

20. Alcohol or drug abuse within the last 12 months

21. Clinically significant abnormal laboratory results at screening as assessed by the QI

22. Blood donation or blood loss between 101 mL to 449 mL within 30 days prior to screening; blood donation of more than 450 mL within 90 days prior to screening; blood donation during the study or a planned donation within 3 months of the last study visit; or plasma donation (e.g., plasmapheresis) within 15 days prior to screening

23. Participation in other clinical research studies 30 days prior to baseline as assessed by the QI

24. Individuals who are unable to give informed consent

25. Any other condition or lifestyle factor, that, in the opinion of the QI, may adversely affect the participant's ability to complete the study or its measures or pose significant risk to the participant

• Minimum Eligible Age: 20 Years
• Maximum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

KGK Science Inc.

INDUSTRY

Sponsor Role: collaborator

Bragg Live Food Products

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

David Crowley, MD

Role: PRINCIPAL_INVESTIGATOR

KGK Science Inc.

Locations

KGK Science Inc.

London, Ontario, Canada

Countries

Canada

Central Contacts

Marc Moulin, PhD

Role: CONTACT

mmoulin@kgkscience.com

2267819094

Facility Contacts

Marc Moulin, PhD

Role: primary

mmoulin@kgkscience.com

2267819094

Other Identifiers

25BGCFA02

Identifier Type: -

Identifier Source: org_study_id