Superoxide Dismutase
Superoxide dismutase, or SOD, is an antioxidant enzyme found in nearly all living cells. It converts the superoxide radical into oxygen and hydrogen peroxide.
Also listed as SOD
What it is studied for
The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.
What does SOD do?
Superoxide dismutase is an enzyme involved in the body’s antioxidant defenses. It converts superoxide radicals into hydrogen peroxide, which other enzymes can then process. This biological role does not by itself demonstrate a benefit from swallowing extra SOD. 1
Why people take it
SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.
Questions people ask
Is the studied melon concentrate pure SOD?
No. It also contains other antioxidants, so the trial cannot isolate SOD’s contribution. 2
Is SOD-gliadin a replacement for treatment?
The reviewed literature discusses complementary use, with larger trials still needed. 3
Are all SOD delivery methods equivalent?
No. Their delivery and absorption differ, and comparative evidence remains limited. 1