Compounds In Red Grapes, Blueberries, Seem To Give The Immune System A Boost

U.S. scientists who studied the impact of more than 400 compounds on the human immune system report that only two – one found in red grapes, one found in blueberries – had a positive effect. The compounds, known as stilbenoids, include resveratrol and pterostilbene. Working in synergy with vitamin D, the compounds raised the expression of the CAMP gene involved in immune function. The researchers acknowledged that their findings were made in Petri dish cell cultures and would not necessarily be duplicated in dietary intake.