A randomized, placebo-controlled trial of 617 nursing home residents aged 65 and older found that daily supplementation with 200 IU of synthetic alpha-tocopherol (90 mg of RRR-alpha-tocopherol) for one year significantly lowered the risk of contracting upper respiratory tract infections, such as the common cold, but had no effect on lower respiratory tract (lung) infections.

Authors

• Person: Not available Organization: Linus Pauling Institute
  Immunity In Depth | Linus Pauling Institute

Sources

• Immunity In Depth | Linus Pauling Institute lpi.oregonstate.edu Linus Pauling Institute via serper

Referenced by nodes (2)

• common cold concept
• respiratory tract infections concept