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Avocado a day keeps inflammation away? new study investigates
NCT ID NCT07566325
First seen Jun 27, 2026 · Last updated Aug 28, 2026 · Updated 2 times
Summary
This study looks at whether replacing sugary or refined-carb foods with one avocado each day can reduce inflammation and improve how the body handles insulin. It involves 38 overweight or obese adults with high inflammation markers. Participants will eat an avocado daily for four weeks, then switch to a control diet, with blood tests to measure changes.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 38 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2026
- Expected to finish
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Feb 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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21 to 74 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Male or female 21 - 74 years of age, inclusive; 2. Baseline hs-CRP ≥2 to \<10 mg/L; 3. Central adiposity (waist circumference ≥35 inches in women and ≥40 inches in men); 4. Body mass index 25.0 to 39.9 kg/m2; 5. Normally active and judged by the Investigator to be in generally good health, based on medical history and screening measurements; 6. Willing to consume daily study foods during each diet condition; 7. Willing to maintain his/her regular physical activity pattern throughout the study period; 8. Willing to follow test day instructions (refrain from consumption of alcoholic beverages and participation in vigorous physical activity for 24 hours and tobacco and caffeine for 1 hour prior to each test visit); 9. No plans to change smoking, vaping, or other nicotine use habits during the study period; and 10. Premenopausal women that are not using hormonal contraceptives must have a history of regular menstrual cycles (21-35 days per cycle) for at least 3 months prior to visit 1; 11. Understands the study procedures and signs forms documenting informed consent to participate in the study and authorization for release of relevant protected health information to the study Investigator and is willing to complete study procedures. Exclusion Criteria: 1. Calculated energy needs of \<1800 kcal/d per the Mifflin-St. Jeor Equation, with an adjustment for energy expended in physical activity; 2. Known metabolic disease (e.g., type 1 or type 2 diabetes, metabolic dysfunction-associated steatohepatitis, etc.); 3. Laboratory test result(s) of clinical significance based on the judgment of the Principal Investigator or qualified designee, including fasting glucose ≥126 mg/dL; 4. Positive urine test for illicit drugs at visit 1; 5. Clinical atherosclerotic disease; 6. History or presence of clinically significant gastrointestinal, endocrine, renal, hepatic, hematologic, immunologic, dermatologic, pulmonary, pancreatic, neurologic, psychiatric, inflammatory or biliary disorder that, in the opinion of the Investigator, could interfere with the interpretation of the study results; 7. History of cancer in the prior 2 years, except for non- melanoma skin cancer or carcinoma in situ of the cervix; 8. Uncontrolled hypertension (systolic blood pressure ≥160 mm Hg and/or diastolic blood pressure ≥100 mm Hg) at screening; 9. Unstable use (defined as initiation or change in dose) of anti-hypertensive medication within 4 weeks of visit 1; 10. Unstable use (defined as initiation or change in dose) of thyroid hormone replacement medication within 12 weeks of visit 1; 11. Use of beta-adrenergic blockers and/or high-dose (\>25 mg/d) thiazide diuretics within 4 weeks of visit 1; 12. Use of diabetes medications including glucagon-like peptide-1 (GLP-1) receptor agonists, GLP-1/glucose-dependent insulinotropic polypeptide (GIP) receptor agonists, alpha-glucosidase inhibitors, biguanides and biguanide combinations, thiazolidinediones, dipeptidyl peptidase-4 (DPP-4) inhibitors, meglitinides and sulfonylureas and combination sulfonylureas within 4 weeks of visit 1; 13. Unstable use (defined as initiation or change in dose, agent, or regimen) of statins within 4 weeks of visit 1; 14. Use of lipid-altering drugs other than statins including, but not limited to bile acid sequestrants, cholesterol absorption inhibitors, or fibrates within 4 weeks of visit 1; 15. Use of any prescription medication with known effects on inflammation (e.g., colchicine, systemic corticosteroids) within 4 weeks of visit 1; 16. Frequent use (≥4 doses/week) of non-steroidal anti-inflammatory drugs (NSAID) within 2 weeks of visit 2; 17. Use of weight-loss drugs (including over-the-counter medications and/or supplements) or participation in a structured weight loss program within 4 weeks prior to visit 1; 18. Unstable use (initiation or change in dose) within 4 weeks of visit 1 of sex hormones. Multiphasic hormonal contraceptives in which the amount of sex hormone in the active pill varies by week (i.e., biphasic, triphasic, quadriphasic) are considered unstable doses of sex hormones and are exclusionary; 19. History of bariatric surgery or plans to have any surgery during the study; 20. History of any major trauma or major surgical event within 2 months of visit 1; 21. Use of herbs or dietary supplements that may affect lipid metabolism, including but not limited to omega-3 fatty acid supplements with \>500 mg of eicosapentaenoic acid (EPA) and/or docosahexaenoic acid (DHA), niacin (or its analogs) at doses \>200 mg/d, sterol/stanol products, dietary fiber supplements, red rice yeast supplements, garlic supplements, and soy isoflavone supplements within 2 weeks of visit 2; 22. Use of herbs and dietary supplements that may affect carbohydrate metabolism, including chromium picolinate, ginseng, cinnamon (as a supplement) and starch blockers within 2 weeks of visit 2; 23. Recent weight change of ±4.5 kg (\~10 lbs.) within 3 months prior to visit 1; 24. Has signs and symptoms of an active infection of clinical significance or has taken antibiotics within 5 days prior to any visit (washout is permitted by re-scheduling of the clinic visit); 25. Extreme dietary habits (e.g., vegan, very low carbohydrate); 26. History of an eating disorder (e.g., anorexia, bulimia nervosa, or binge eating) either diagnosed by a health professional or self-reported; 27. Female who is pregnant, planning to be pregnant during the study period, lactating, or is of childbearing potential and is unwilling to commit to the use of a medically approved form of contraception throughout the study period; 28. Known allergy, sensitivity, or intolerance to any components of the study foods; 29. Exposed to any non-registered drug product within 4 weeks of visit 1; 30. Currently participating in another research study; 31. Use of hemp/marijuana products within 12 months of visit 1. Occasional use (e.g., once or twice a month) within 12 months of visit 1 is allowed but requires at least a 14-day washout prior to visit 2 and the participant must be willing to refrain from use during the study; 32. Current or recent history (past 12 months of screening) or strong potential for illicit drug or alcohol abuse. Alcohol abuse will be defined as \>14 drinks per week (1 drink = 12 oz beer, 5 oz wine, or 1.5 oz hard liquor); and 33. Condition the Investigator believes would interfere with his or her ability to provide informed consent or comply with the study protocol, or which might confound the interpretation of the study results or put the person at undue risk.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Illinois Institute of Technology
RECRUITINGChicago, Illinois, 60616, United States
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University of Nevada, Las Vegas
NOT_YET_RECRUITINGLas Vegas, Nevada, 89154, United States
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