Scientists treated both normal mice and mice with a mutation in the gene responsible for Werner's syndrome (WRN gene) with vitamin C in drinking water. Before treatment, the mice with a mutated WRN gene were fat, diabetic, and developing heart disease and cancer. After treatment, the mutant mice were as healthy as the normal mice and lived a normal lifespan. Vitamin C also improved how the mice stored and burned fat, decreased tissue inflammation and decreased oxidative stress in the WRN mice. The healthy mice did not appear to benefit from vitamin C.

"Vitamin C has become one of the most misunderstood substances in our medicine cabinets and food," said Gerald Weissmann, M.D., Editor-in-Chief of the FASEB Journal. "This study and others like it help explain how and why this chemical can help to defend some, but certainly not all, people from premature senescence."

Source: Federation of American Societies for Experimental Biology