Importance of selenium

As people age, attention to health becomes even more relevant. One of the nutrients that deserves special consideration in the elderly is selenium. This essential trace element plays a fundamental role in the well-being of the elderly and understanding its importance, sources and functions becomes a crucial factor in maintaining a healthy and active life at this stage. In this session, we will explore in detail the relevance of selenium in the elderly.

Selenium: An Essential Trace Element

Selenium is an essential trace element that the human body needs in small amounts to function properly. Despite its presence in trace amounts in the body, its importance is considerable. Selenium is found in certain proteins that play a critical role in various bodily functions.

Key Functions of Selenium

Selenium serves several crucial health functions, and these become even more relevant in old age:

• Powerful Antioxidant: One of selenium's most prominent roles is its antioxidant capacity. It acts as part of the body's antioxidant enzymes, helping to neutralize free radicals and protecting cells from oxidative damage. This is essential for fighting cellular aging and reducing the risk of chronic diseases.

• Immune System Support: Selenium is essential for the optimal functioning of the immune system. It contributes to white blood cell production and the body's immune response, which is especially relevant in the elderly to prevent infection and disease.

• Thyroid Regulation: Selenium is necessary for proper thyroid function. It helps convert inactive thyroid hormone (T4) into its active form (T3), which is essential for maintaining a healthy metabolism and controlling weight.

• Reduced Risk of Chronic Disease: Adequate selenium intake has been linked to a reduction in the risk of chronic diseases, including heart disease, certain types of cancer, and neurodegenerative diseases such as Alzheimer's.

Changes in Selenium Needs with Age

Although selenium needs do not change significantly with age, it is important to keep in mind that the body's ability to absorb and utilize nutrients may decrease over time. This means that older people may require a more conscious approach to ensure they are getting enough selenium.

Sources of Selenium for Older Adults

Meeting selenium needs is critical to maintaining health in later life. Some food sources rich in selenium include:

• Nuts and seeds: especially Brazil nuts are exceptionally rich in selenium.

• Fish and seafood: tuna, salmon and shrimp are good sources.

• Beef and turkey: are rich in selenium.

• Eggs: a reliable dietary source of selenium.

• Whole grain cereals and breads: some whole grains contain selenium.

• Dairy: cheese and yogurt can provide selenium in the diet.

Strategies for a Selenium-Rich Diet

To ensure adequate selenium intake, it is important to follow a few strategies:

• Variety in Diet: a balanced and varied diet that includes a wide range of selenium-rich foods can help meet nutritional needs.

• Supplementation: In some cases, selenium supplementation may need to be considered, especially if there is a diagnosed deficiency. However, a health professional should always be consulted before beginning any supplementation.

• Medical Management: Maintaining regular medical management is critical to monitor selenium levels and address any deficiencies appropriately.

• Attention to Interactions: Selenium may interact with certain medications, so it is essential to discuss any potential interactions with a healthcare professional.