Health
Research Grants
Twenty-five years ago, California’s table grape growers established a health research grant program to uncover the health benefits associated with table grapes. This ongoing research aims to further understand how table grapes support multiple areas of human health, including the heart, brain, gastrointestinal, skin, immune, joint, eyes, and certain cancers. To view a list of the funded health research studies to date, click here.
Funded research projects use a freeze-dried powder form of California table grapes to maintain consistent and replicable research methods. The use of this powder encourages uniformity across focus areas and allows the work to continue outside of California’s harvest season, which runs May into December. Researchers may also access a grape powder placebo.
Each year, Letters of Intent are requested from the research community. Selected finalists are invited to submit full proposals, which are then rigorously reviewed by an advisory panel of distinguished scientists.
Researchers interested in receiving notification for the 2026 Call for Letters of Intent may email the commission at [email protected] to be added to the mailing list.
Research Grant Resources
Funded Health Research Studies 2000-2024
DOWNLOAD >Grape and Brain Health Studies Summary
DOWNLOAD >Grape and Eye Health Studies Summary
DOWNLOAD >Grape and GI Health Studies Summary
DOWNLOAD >Grape and Immune Health Studies Summary
DOWNLOAD >Grape and Skin Health Studies Summary
DOWNLOAD >Freeze-Dried Table Grape Powder Overview
DOWNLOAD >Guidelines for Use of California Table Grape Powder in Health Research Studies
DOWNLOAD >Published studies and final reports on table grapes and health research are available for viewing, if desired, to help inform new research proposals in a given area. To access this section, click here.
ABOUT California TABLE GRAPES
Californians have been cultivating grapes for more than two centuries. Today, 99 percent of U.S. table grapes are produced in California's warm, dry climate that is ideal for grape growing. With 89 grape varieties grown, California grapes come in three colors—green, red, and black—and are in season from May through January.
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