To Participate

Do you enjoy eating protein rich, nutritious meals?

Participate in our research study and we can help you learn more about the impact of dietary protein source on your health. We want to find out whether the protein sources, including red meat (i.e., beef, pork), white meat (i.e. chicken, turkey) and non-meat foods (i.e. nuts, beans, soy) you eat in your diet can affect your risk for developing cardiovascular disease.


  • Free study foods
  • Information about your risk for cardiovascular disease

In order to participate in our APPROACH Study, you must:

  • Be a male or female between 21 and 65 years old
  • Have a body mass index (B.M.I.) of at least 20 but no greater than 35. Click here to calculate your BMI. 
  • Be willing to abstain from alcohol and dietary supplements
  • Be a non-smoker
  • Be willing to follow specific diets for a total of 18 weeks

The diets must be followed EVERY DAY with NO CHEATING for each 4-week period, and EVERYTHING on the menus must be eaten – no food or beverage substitutions allowed. Click here for more information about the diets.

The study is 18 weeks long, during which time you must also be able to:

  • Come to the Cholesterol Research Center (CRC) in Berkeley every week to be weighed and to pick up entrees (Click HERE for CRC location)
  • Come to 8 visits for blood draws (~1 or 2 hours each)
  • Maintain a body weight within a range that is no more than 3% above or below your initial screening weight (For example, a 200 pound man may not gain or lose more than 6 pounds)
  • Wear a small activity monitor daily to measure your physical activity.

You will be compensated $1200 for full participation in the study.

If you’d like to apply to participate in the study, fill out your name and e-mail address below to request an online survey.  If you do not receive the link within a few minutes, please check your spam or junk mailbox. 

If you’d like to participate in this study, please fill out the information below.


Please note, however, that people with certain health issues, which would compromise either, the study results, or their own health, cannot be in the study. This includes those who have heart disease, diabetes, or cancer, or those taking lipid lowering medications, diabetes medications, hormones, certain blood pressure medications, blood thinning agents, and some other drugs.

For more information, or to be placed on a list to be contacted about our other research studies, either now or in the future, please Contact Us. For more information about the Principal Investigator for this study, Ronald Krauss, MD, click HERE. This study is sponsored by the National Institutes of Health (NIH).