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Current Studies

An online form is available to contact study coordinators.

AIX Long-Term Study

UC Davis Nutrition Researchers are conducting a study that examines how the daily intake of cocoa flavanols modulates arterial stiffness.

To qualify for this study volunteers need to be:

  • 30 to 55 years of age
  • Healthy
  • Not on medications or supplements (multi-vitamin OK)

Participants will be asked to:

  • Participate in two 1 ½-2-hour visits and two 30 minute visits in a period of 4 weeks
  • Consume a cocoa flavanol or control product daily for 4 weeks
  • Undergo non-invasive arterial stiffness determinations by collecting pulse signals at your neck, wrist and leg
  • Wear an automatic blood pressure cuff on two days for 24 hours
  • Possibly undergo non-invasive measurements of blood flow on your fingers and arm
  • Provide blood samples

Participants will receive:

  • $485-515 in compensation and copies of laboratory results

For more information call (530) 219-8199 or use the online form to contact study coordinator.

 

Resveratrol Study - Postmenopausal Women Needed for a Research Study

Scientists at UC Davis’ Department of Nutrition are conducting a study that looks at the effects of resveratrol supplements on cardiovascular health.

To qualify for this study you must be:

  • A postmenopausal woman
  • 50-70 years of age
  • Willing to come in for 3 study visits each lasting approximately 4 hours
  • Willing to consume a supplement ResA, native resveratrol, or placebo during study visits
  • Not taking medication for anxiety, depression, high blood pressure, cholesterol

You will receive at no cost:

  • Copies of standard laboratory results
  • Compensation for your visits

For more information, please call (530) 752-2915 or use our online form to contact study coordinator.

 

The Effects of Naturally Occurring and Sugar-Sweetened Beverages Study

Welcome to the UC Davis Nutrition Department Sugar and Stress Study site. Information about the Effects of Naturally Occurring and Sugar-Sweetened Beverage Study is given below.

People Are Consuming More Sugar

Scientists at the University of California, Davis and the University of California, San Francisco are conducting a research study to determine what the effects of drinking 3 sugar-sweetened beverages versus naturally-sweetened beverages each day has on a person´s metabolism.

We need healthy women, ages 25-40, BMI range 26-35, who:

  • Are willing to drink 3 sweetened beverages each day for approximately 15 days
  • Are non-smokers and not taking thyroid, lipid-lowering, diabetes, depression or blood pressure medications
  • Have extra time to devote to helping us answer this important question

Participation in this study requires a significant time commitment:

  • The entire study lasts approximately 31 days, with experimental testing days lasting
    approximately 17 days and follow-up questionnaires to be done at home 2 weeks after.
  • For portions of the study you will need to live (at no expense with all food provided) at the Western Human Nutrition Center located at UC Davis.
    • For 1 ½ days at the beginning of the study
    • For 1 ½ days at the end of the study
  • You will be compensated approximately $815 for completing the study.

Forms

For more information: call (916) 296-2100 or use the online form to contact study coordinator.

 

 

Lychee Study - Participants Needed for a Research Study

UC Davis nutrition scientists are conducting a study that looks at the effects of lychee fruit extract supplements on cardiovascular health.

To qualify for the study you must be:

  • A postmenopausal woman, 50-70 years of age or a man, 40-65 years of age
  • Have a blood pressure that is higher than normal (120 over 80) but not currently treated for high blood pressure
  • Not taking medications for anxiety, depression, high blood pressure, cholesterol
  • Willing to consume a lychee fruit extract (LFE) supplement or a placebo during the study period.

You will receive at no cost:

  • Copies of standard laboratory results
  • Compensation for your visits

For more information: call (530) 752-2915 or use the online form to contact study coordinator.

Grape Seed Extract and Inflammation Research Study - Men and Women Needed

Welcome to the UC Davis Nutrition Department Grape Seed Extract and Inflammation Research Study site.

Learn about the effects of Grape Seed Extract on Acute Inflammation

UC Davis Researchers are looking for overweight men and women to participate in a research study.

  • Participants must be 20 years or older and not have any medical problems or be taking any medication.
  • Participation includes keeping food records and four overnight study visits at Mather VA Medical Center in Rancho Cordova, Ca.
  • Compensation will be provided.

For more information: call (530) 754-5994 prompt #2 or use the online form to contact study coordinator.

 

Volunteers Needed for Whole Grape Powder Study

Researchers at UC Davis / Nutrition Department are interested in studying the effects of whole grapes on markers of health.

Volunteers Needed

  • Individuals: overweight & with a BMI ≥ 30
  • Ages 18 and older
  • In good health
  • Not taking anti-inflammatory medications
  • Nonsmokers
  • Not pregnant or lactating

What Will Volunteers Do?

  • Come to the UC Davis/ Ragle Nutrition center 5 times during 10 week study, 2 visits will be approximately 5 hrs
  • You will be required to arrive fasted for blood draws and provide urine samples
  • You will be asked to consume a breakfast meal (provided by the researchers) on 2 study days
  • You will be asked not to eat grapes or products containing grapes (wine, juice, raisons, etc) as well as other high polyphenol foods during the study
  • You will be asked to consume a grape product beverage (provided by the researchers) every day during the study

Volunteers will receive up to $100 for participation

For more information, please call (530) 754-5994 prompt #1 or use our online form to contact study coordinator.