Grape Consumption May Improve Skin's UV Defense in Some Individuals
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A clinical trial has found that eating grapes can improve skin resistance to UV radiation in some people. The study, funded by the California Table Grape Commission, showed grape consumption altered gene expression and reduced oxidative stress markers after UV exposure.
Facts First
- Eating grapes improved skin UV resistance in 30% to 50% of clinical trial participants.
- Grape consumption altered skin gene expression in all subjects, pointing toward a strengthened protective barrier.
- Oxidative stress markers were lower after UV exposure in participants who consumed grapes.
- Volunteers ate three servings of grapes daily for two weeks during the study.
- Research was published in ACS Nutrition Science by scientists from Western New England University and Oregon State University.
What Happened
A new study published in ACS Nutrition Science has shown that consuming grapes may improve skin health. In the clinical trial, volunteers ate the equivalent of three servings of whole grapes daily for two weeks. Researchers from Western New England University and Oregon State University then analyzed gene expression in the participants' skin before and after grape consumption, both with and without exposure to low doses of UV radiation.
Why this Matters to You
If you are concerned about sun damage, incorporating grapes into your diet could potentially offer an additional layer of protection for your skin. The research suggests that this dietary change might strengthen the skin's natural barrier and reduce oxidative stress caused by UV exposure. This could mean less cellular damage from everyday sun exposure, which may contribute to long-term skin health.
What's Next
The findings, which showed consistent gene expression changes in all participants, point toward a complex biological response. Further research is likely needed to understand why the benefit was observed in only 30% to 50% of people and to confirm the long-term effects. The study's lead researcher, John Pezzuto, Ph.D., and his collaborators may continue to explore how specific dietary components influence skin resilience.