Final answer:
The statement is true; selenium's antioxidant properties can help protect against chronic diseases by neutralizing damaging free radicals and contributing to the body's defense system against oxidative stress.
Step-by-step explanation:
The statement that limited research suggests that the antioxidant action of selenium may protect against certain chronic diseases is True. Antioxidants like selenium play a crucial role in protecting the body against oxidative damage. They do this by neutralizing free radicals, which are highly reactive and can damage DNA through oxidation. Selenium, along with Vitamins A, C, E, and beta-carotene, serves as an antioxidant nutrient. While some antioxidants have a local effect, such as Vitamin E in the colon, selenium works more globally within the body. Additionally, selenium is involved in the biosynthesis of coenzyme Q and acts as an antioxidant, offering protection against peroxidation in tissues and membranes.
Research indicates that oxidative damage contributes to the aging process and that reducing this damage can prolong lifespan in certain organisms. The efficacy of antioxidants in preventing chronic diseases is still being investigated, and selenium's role as part of this defense system is important in health maintenance and disease prevention.