What is tannic acid?
Foods High in Tannic Acid
Tannic Acid Supplements
Tannic acid as oral supplements or ointments are available without prescription (over-the-counter).
Tannic Acid Health Benefits
Tannic acid supplements are POSSIBLY INEFFECTIVE in the prevention or treatment of cold sores and fever, diaper rash, prickly heat and sunburn .
There is INSUFFICIENT EVIDENCE about the effectiveness of tannic acid supplements in the prevention or treatment of cancer, ingrown toenails, sore throat, poison ivy, swollen tonsils and thinning gums .
Tannic Acid Safety: Side Effects, Toxicity
Tannic acid may be UNSAFE when applied to the skin to treat cold sores, diaper rash, prickly heat or sunburn .
Oral tannic acid supplements may cause kidney or liver damage .
Not enough is known about the safety of tannic acid supplements during pregnancy and breastfeeding, so women in these periods should avoid them. .
Tannic Acid-Drug Interactions
Tannic acid supplements can inhibit the absorption of iron from foods [2,3] and certain oral supplements and drugs and may decrease their effectiveness .