Academics
Geranylgeraniol (GG) Supplementation and Its Impact …
Geranylgeraniol(GG) Supplementation and Its Impact on Body Composition, Muscle Health, and Exercise Performance
LU IRB#: IRB-25-35
PI: Chad Kerksick, PhD
Description of Study
Participate in this study to help us learn about how Geranylceraniol (GG) can impact your body composition and exercise performance. GG is a compound found in many foods that may help improve body composition, muscle strength and exercise performance.

Location
(Fieldhouse 126)
209 S Kingshighway St
Saint Charles, MO 63301Number of Visits
4Time Commitment
Visits 1: 30-45 minutes
Visits 2-4: 60-120 minutesCompensation
$300Points of Contact
Alex Schrautemeier
[email protected]
Research Sample Needed
- 60 healthy, physically active men and women
Inclusion Criteria
- Between 30 and 60 years old.
- Body mass index values will range from >18.5 and <29.9 kg/m2
- Subject agrees to maintain their existing dietary patterns throughout the study period.
- Subject agrees to refrain from alcohol, caffeine, and strenuous exercise for 24 hours prior to each test day.
- Is physically active, defined as at least 30 min of moderate exercise on at least 4 days a week.
- Avoid consumption of pomegranate juice and avoid consumption of CoQ10, vitamin B3 and its precursors, L-carnitine, MK-4
- Subject is willing and able to comply with the study protocol.
- Subject has given voluntary, written, informed consent to participate in the study.
Exclusion Criteria
- BMI <18.5 or > 29.9 kg/m2
- Positive medical history and/or is currently being treated for some form of heart disease, cardiovascular disease, kidney disease, renal failure, or has dialysis performed on regular intervals, Type I or Type II diabetes (determined as fasting blood glucose > 126 mg/dL), thyroid disease, liver disease or some form of clinically diagnosed hepatic impairment, immune disorder (i.e., HIV/AIDS), or neurological condition or disease.
- Diagnosed with any affective disorder or other psychiatric disorder that required hospitalization in the prior year.
- History of cancer (except localized skin cancer without metastases or in situ cervical cancer within 5 years prior to screening visit).
- Participant has an abnormality or obstruction of the gastrointestinal tract precluding swallowing (e.g., dysphagia) and digestion (e.g., known intestinal malabsorption, celiac disease, inflammatory bowel disease, chronic pancreatitis, steatorrhea)
- Genetic musculoskeletal and neurologic disorder known to affect skeletal muscle metabolism
- Has donated blood in past 60 days
- Diagnosed with or being treated for any endocrinological disorder and/or taking hormone boosting supplements (e.g. herbs) or hormone replacement therapy (prescribed/doctor ordered or not)
- Had CoQ10 supplement in past 30 days.
- Had steroid medication one month before starting the study
- Currently prescribed for the first time a statin drugs (i.e., Lipitor, Livalo, Crestor, Zocor, etc.) and/or a hypertension medication (i.e., Beta-blockers, ACE Inhibitors, Alpha blockers, Vasodilators, etc.) within the past 6 months or has had their dosage or medication changed within the past 6 months
- Current smoker (average of > 1 pack per week within the past 3 months) or has quit within the past six months. This includes all forms of nicotine
- Intake of any drugs (prescribed or over the counter) or dietary supplements that are known or are purported to impact energy expenditure or weight loss (caffeine doses <300 mg/day is permissible)
- Women with a history of hormone-related conditions such as endometriosis, fibroids, polycystic ovary syndrome
- Women who are pregnant, planning to become pregnant, or lactating currently or within the past six months
- Women who are currently using oral contraceptives. Those taking short-acting contraceptives (oral contraceptive pills) must have stopped taking them more than 3 months ago while those reporting any use of longer-acting hormonal contraceptives (e.g., Norplant (Wyeth-Ayerst), Depo-Provera (Pfizer), or hormonal intrauterine device) must have stopped taking them at least 12 months prior to beginning the study.
- Have a known sensitivity or allergy to any of the study products
- History of alcohol or substance abuse in the 12 months prior to screening
- Receipt or use of an investigational product in another research study within 30 days of beginning the study protocol
- Has participated in other clinical trials focused on physical and muscle performance within the last year
- They plan major changes in lifestyle (i.e., diet, dieting, exercise level, travel, etc.) during the study
- Individuals who regularly compete as part of sanctioned athletic activities or those individuals who regularly train more than 360 minutes of exercise per week
- Recent history (<3 months) of exercise training or weight loss (> 5%)
- Any condition or abnormality that, in the opinion of the investigator, would compromise the safety of the participant or the quality of the study data
Are You Eligible?
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Information provided here reflects current IRB approval for this research. However, this information may be subject to change and updated accordingly.