Current Studies

An online form is available to contact the coordinators of each study listed below.

 

Women and Sucrose-sweetened Beverages Study

Information about the Effects of Sucrose-Sweetened Beverage in African-American and Caucasian Women Study is given below.

People Are Consuming More Sugar

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

We need healthy non-hispanic White and African-American women, ages 18-45, BMI range 25-35, 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 17 days, with experimental testing days lasting  approximately 16 days.
  • For portions of the study you will need to visit at Clinical and Translational Science Center (CTSC) Clinical Research Center (CCRC) located at UC Davis Medical Center.
  • Two 4-hour visits at the beginning of the study
  • Two 4-hour visits at the end of the study
  • You will be compensated approximately $305 for completing the study. 

 Forms

For more information: call (530) 752-5379, text (530) 794-8244 and provide your contact information, or use the online form to contact a study coordinator.

Mango and Skin Study

Women aged between 50 – 70 needed for a Skin Research Study

Scientists at UC Davis Department of Dermatology and Department of Nutrition are conducting a study that examines the effects of mango intake on facial skin wrinkles and redness in postmenopausal women aged between 50–70.

To participate in this research study, you must be willing to come in for 5 study visits over a period of 16 weeks; and be willing to consume mango four times a week for 16 continuous weeks and provide facial photographs and blood, skin, and stool samples.

To qualify for this study, you must be:

  • Female, 50–70 years of age
  • Postmenopausal
  • Having Fitzpatrick Skin Type I, II, or III
  • In good health
  • Not taking any medication
  • BMI 18.5 - 35.0 kg/m2
  • Willing to stop using skincare (except for moisturizer and sunscreen) throughout the study period

Participants will receive:

  • Participants will receive $240 for completion of all study visits

Study Location:

  • Ragle Human Nutrition Research Center, Academic Surge, UC Davis

For more information: call 530-760-5968 or use the online form to contact a study coordinator.

 

Orange Juice and Sugar Intervention (OASIS) Study

Scientists at the University of California, Davis are conducting a research study to learn more about the health effects of drinking sugar-sweetened beverages compared with naturally-sweetened beverages.

Who can participate?

We are looking for healthy men and women who are between the ages 18-50 years old, with a BMI between the range of 20-35 kg/m2 and are non-smokers who:

  • Are willing to consume our study diet (breakfast, lunch, dinner and snack) each day for approximately 7 weeks
  • Are willing to drink 3 sweetened beverages per day for approximately 5 weeks
  • Are willing to spend two sessions (6 hours each) at the Ragle Research Facility at the UC Davis campus, and two sessions (1 1/2 days) at the Touro University Translational Clinic (TUTC) in Vallejo, CA (transportation from Davis provided by staff) for experimental procedures

You will be compensated approximately $900 for completing the study. There will be no compensation for participation in screening or consenting procedures.

Study Location:

  • Davis, California (University of California, Davis)

Forms

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

 

Strawberry Study - Postmenopausal Women needed for a Research Study

We are looking for interested participants to volunteer to participate in a 14 week research study that will examine the effects of daily strawberry powder intake on markers of gut and cardiovascular health.

To qualify for this study you must be:
  • Postmenopausal Woman
  • 40-65 years of age
  • Overweight or Obese
  • Be willing to come in for 7 study visits, lasting about 2 hours each
  • Be willing to provide blood, urine and stool samples
  • Not taking any medications, and are willing to stop all supplement use prior to and throughout the study period.

Participants will receive:

  • Participants will receive $545 for completion of all study visits

Study Location:

  • Ragle Human Nutrition Research Center, Academic Surge, UC Davis

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

Metabolic Effects of Sugar/Aspartame Study (MESA Study)

People are consuming a lot of sugar

Scientists at the University of California, Davis are conducting a research study to determine the effects that drinking sweetened beverages with provided study meals each day has on a person's metabolism.

We need healthy men and women, ages 18-40, who:

  • Are willing to consume the breakfast, lunch, and dinner provided by the study staff each day for approximately 42 days.
  • Are willing to drink 3 sweetened beverages per day for approximately 56 days along with the provided study meals.
  • Are non-smokers and not taking thyroid, lipid-lowering, diabetes, depression or blood pressure medications.
  • Are willing to spend two sessions (6 hours each) at the Ragle Research Facility at the UC Davis days or 30 hours each) at the Touro University Translational Clinic campus, and two sessions (1 1/4 days in Vallejo, CA (transportation provided by staff)
  • 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 70 days.
  • You will need to spend time at our research facilities:
    • Ragle Research Facility at the UC Davis campus located in Davis, CA.
      • For 6 hours at the beginning of the study
      • For 6 hours at the middle of the study
    • Touro University Translational Clinic (TUTC) in Vallejo, CA (transport provided by staff).
      • For 1 1/4 days (30 hours) during the 6th week of the study
      • For 1 1/4 days (30 hours) during the 2nd week of the study
  • You will be compensated approximately $1,170 for completing the study. There will be no compensation for participation in screening or consenting procedures.
 

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