2.2.1. Multi-Nutrient Supplements
Participants received either multi-nutrient supplements or placebo, administered in 2 capsules per day, taken daily for 1 year. Multi-nutrient supplements were specifically prepared for the study and consisted of one pill containing omega-3 fatty acids, 1412 mg of eicosapentaenoic acid and docosahexaenoic acid, and a pill containing selenium, folic acid, and vitamin D3 coupled with calcium. The placebo was identical in shape, color, and packaging to the multi-nutrient supplement but contained sunflower oil (pill 1) and filler materials (pill 2).