Selenium is a trace mineral that is incorporated into proteins to make selenoproteins, a powerful antioxidant enzyme. Antioxidant nutrients such as selenium help protect cells from oxidative stress, thus potentially slowing progression of the disease. When one becomes selenium deficient immune cell counts decrease and the disease progresses at a faster pace. This may be due to oxidative stress and the damage it does to immune cells.
Adults and children with advanced AIDS display both highly depleted selenium plasma stores and reduced CD4 Cell counts. In a small study of 24 children with HIV, observed over five years, those with low selenium levels died at a younger age, which may indicate faster disease progression.
It is important for HIV-positive individuals to consume enough selenium in their diet and supplement if this is not possible. Selenium is found primarily in Brazil nuts, tuna, salmon, cod, egg, turkey, garlic, mushrooms and barley. For a healthy person a daily intake of 50-200mg of selenium is sufficient, but for those with compromised immunity an increase of 100% may be required to improve selenium levels. Selenium also works best in the presence of vitamin E, which is found in nuts, seeds, eggs and avocado.