Boosting the amount of a specific protein made by the body could help slow down the Aids virus.
The micronutrient selenium helps maintain the body's metabolism. It's incorporated into proteins that reduce the stress caused by an infection.
Penn State researchers wanted to see how selenium affected the Aids virus, so they added it to cells infected with HIV.
They found selenium slowed the replication of the virus at least 10 fold compared to ones without it.
These results could eventually lead to new drugs for Aids patients.