The worms unable to depend on glucose increased energy power sources in certain cells for fuel. That activity produced more free radicals, which in turn generated enzymes that strengthened long-time protection against the harmful molecules, Ristow said.
However, anti-oxidants and vitamins given to some worms erased these benefits by neutralizing free radicals and preventing the body from generating the defenses, Ristow said. “These latter findings tentatively suggest that the widespread use of antioxidants as human food supplements may exert undesirable effects,” the researchers wrote.
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