Broccoli May Help Boost Aging Immune SystemBroccoli. (Credit: Image courtesy of University of California - Los Angeles)ScienceDaily (Mar. 10, 2008) — Eat your broccoli! That's the advice from UCLA researchers who have found that a chemical in broccoli and other cruciferous vegetables may hold a key to restoring the body's immunity, which declines as we age. Published in the online edition of the Journal of Allergy and Clinical Immunology, the study findings show that sulforaphane, a chemical in broccoli, switches on a set of antioxidant genes and enzymes in specific immune cells, which then combat the injurious effects of molecules...