Broccoli is rich in indoles, chemicals that kept mice fit as they get older. Previously, this team of scientists led by Professor Kalman of Emory University in Atlanta, USA, identified that indoles helped worms and mice resist infection and disease.
For the study, the researchers treated mice with antibiotics to eliminate existing flora. After that, they colonized mice with either normal E. coli or bacteria that cannot produce it. In mice aged 28 months, indole helped animals maintain their weight, mobility, and activity levels.
Professor Kalman says: “It’s like the Picture of Dorian Gray in terms of the genes involved. Indoles make old animals look more like the young ones.”