Selenium and Anti-Aging Effects

Maintaining adequate selenium status is an acknowledged anti-aging strategy. We need selenium to live longer and to be healthier as we age. Adequate intakes of selenium and adequate bio-synthesis of selenoproteins contribute to healthy aging and to reduced vulnerability to various disorders. Selenium and selenoproteins are important for the following biological activity [Bjorklund 2022]:

  • antioxidant protection
  • enhancement of immune system function
  • metabolic homeostasis
Crowds of people
Bjorklund et al estimate that selenium deficiency affects about one billion people in the world and may have a significant adverse effect on human health.

One characteristic of aging is oxidative stress.

Oxidative stress is defined as an imbalance between the damage caused by harmful free radicals and the protection offered by antioxidants. Inadequate selenium status can reduce the longevity and the health of senior citizens by accelerating the aging process and/or increasing vulnerability to immune system dysfunction, cardiovascular disease, and cancer [Bjorklund 2022]. read more

Blood Sugar Control and Selenium Supplementation

Blood sugar levels. Insulin sensitivity. Risk of diabetes. What, if anything, is the likely effect of selenium supplementation on glycemic control?

Blood sugar monitor
To maintain blood sugar levels within the normal range, the CDC recommends eating at regular times, not skipping meals, eating foods lower in calories, saturated fat, trans fat, sugar, and salt, drinking water instead of juice or soda, limiting alcohol intake, and exercising. Adequate intakes of selenium are also important.

Glycemic control is the maintenance of blood sugar levels within an acceptable range to prevent the adverse effects of low blood sugar and high blood sugar.

The best measure of glycemic control is the HbA1c test. This blood test HbA1C gauges the average glucose level in the blood over a period of approximately three months. It is considered a good predictor of diabetic complications.

Checking Blood Sugar

The US Center for Disease Control and Prevention suggests that logical times for testing blood sugar levels are as follows [CDC 2022]:

  • When first awake and before eating or drinking anything
  • Before a meal
  • Two hours after a meal
  • At bedtime
Target Blood Sugar Levels

The CDC suggests the following desirable blood sugar levels [CDC 2022]: read more