Red grapes and blueberries may be superfoods for your immune system, a new study suggests.
Researchers from Oregon State University analyzed 446 different compounds, to find that only two of them had abilities to boost the immune system: resveratrol, found in red grapes, and pterostilbene, found in blueberries.
The two compounds promote health because they work with vitamin D to increase expression of the CAMP gene, known to play a role in the functioning of the body's immune system.
Because the study, published in the journal Molecular Nutrition and Food Research, was only conducted in a lab setting and not in humans, more research is needed before saying that consuming the compounds from fruits in diet would have immune-boosting effects. But still, the idea that certain foods could potentially improve the immune system is intriguing, researchers said.