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A recent study suggests that grapes might offer more than just a sweet snack, they could also enhance your skin's defense against sun damage. Conducted by researchers from Western New England University and Oregon State University, the study found that consuming grapes can alter gene expression in the skin, strengthening its natural defenses.
Participants in the study consumed three servings of grapes daily for two weeks. Researchers analyzed gene activity in their skin before and after grape consumption, both with and without exposure to UV radiation. The study, published in ACS Nutrition Science, revealed that grape consumption consistently altered gene expression, enhancing processes like keratinization and cornification, which form the skin's protective barrier.
Additionally, grapes reduced levels of malondialdehyde, a marker of oxidative stress, suggesting less cellular damage from UV exposure. John Pezzuto, Ph.D., Professor and Dean at Western New England University, emphasized that grapes act as a "superfood," potentially affecting gene expression in other body tissues, such as the liver and brain.
Despite the promising results, the study's small sample size, involving only four female participants, means the findings may not apply universally. Researchers also caution that grapes should not replace traditional sun protection methods.
In addition, the study used a concentrated grape powder rather than fresh grapes, suggesting further research is needed to understand the full implications of grape consumption on skin health.