Bragg apple cider vinegar to reduce post-meal blood sugar in healthy adults

A Randomized, Single-blind, Controlled, Cross-over Clinical Trial to Investigate the Efficacy of Bragg Apple Cider Vinegar on Blood Glucose Control in a Healthy Adult Population

This test will see if taking 750 mg of Bragg Apple Cider Vinegar before a carbohydrate drink lowers post-meal blood sugar in healthy adults aged 20–50.

Quick facts

• Phase: Not applicable
• Study type: Interventional
• Enrollment: 24 (estimated)
• Ages: 20 Years to 50 Years
• Sex: All
• Sponsor: Bragg Live Food Products (Industry-sponsored)
• Drugs / interventions: chemotherapy, radiation
• Locations: 1 site (London, Ontario)
• Trial ID: NCT07043478 on ClinicalTrials.gov

What this trial studies

This interventional study compares Bragg Apple Cider Vinegar liquid to a placebo following a standardized acute carbohydrate load to measure postprandial glucose response. Participants will consume 750 mg of ACV or a placebo and undergo venous blood draws over 120 minutes to determine the incremental area under the curve (iAUC) for glucose, with insulin and other markers collected for future analysis. The primary outcome is venous glucose iAUC from 0–120 minutes after administration, with secondary measures including insulin and exploratory biomarkers. The study is conducted at KGK Science Inc. in London, Ontario.

Who should consider this trial

Good fit: Ideal candidates are healthy adults aged 20–50 who are not pregnant, or who agree to use approved contraception if of childbearing potential.

Not a fit: People with diabetes, impaired glucose tolerance, pregnant women, or those outside the 20–50 age range are unlikely to gain useful treatment information from this study.

Why it matters

Potential benefit: If successful, this could provide a simple dietary supplement to modestly reduce post-meal blood sugar spikes in healthy adults.

How similar studies have performed: Previous small studies of vinegar or acetic acid have shown modest reductions in postprandial glucose, but results have been variable and evidence is limited.

Eligibility criteria

Inclusion Criteria:

Males and females 20 - 50 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 screening 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 (see Section 9.1) 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 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 over-the-counter (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 30 days prior to baseline, during the study, or a planned donation within 30 days of the last study visit
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

Where this trial is running

London, Ontario

• KGK Science Inc. — London, Ontario, Canada (Recruiting)

Study contacts

• Principal investigator: David Crowley, MD — KGK Science Inc.
• Study coordinator: Marc Moulin, PhD

Conditions Healthy; Blood Glucose; Blood glucose control; Bragg Apple Cider Vinegar; Apple Cider Vinegar