If you do not eat meat, eat beans with 1 tablespoon of uncooked oil. Do not take in one dose- consume gradually through the day. The above supplements are to be taken with a normal diet containing protein, starches, and vege's. A normal Multivitamin may be taken as well for other vitamins and minerals. The above are the most important- a minimum daily intake.
Selenium is rare in most foods.
The cheapest and easiest method of supplementation is through tablets. It needs to be in the form of Selenomethionine. ZINK One of the most important trace minerals for immune function. The thymus gland needs Zinc to function. Recommended dosage is 2 medium raw carrots, twice a day.