Research
Micronutrients & recovery
Selenium's biological activity is primarily mediated through its incorporation into selenoproteins (containing selenocysteine), which support antioxidant defense systems, thyroid hormone metabolism, and neuroprotection.
Selenium works by forming selenoproteins. Ensuring adequate intake (55 µg/day) allows your body to produce these proteins, which protect cells from oxidative stress and support thyroid and nervous system health.
GoodSupportsHIGH confidence
Se plays a substantial role in the functioning of the human organism. It is incorporated into selenoproteins, thus supporting antioxidant defense systems. Selenoproteins participate in the metabolism of thyroid hormones, control reproductive functions and exert neuroprotective effects.
Why this rating
Well-established biochemical pathway described in detail, including biosynthesis of selenocysteine.
Source
Biological Activity of Selenium and Its Impact on Human Health
Giuseppe Genchi et al. · International Journal of Molecular Sciences · 2023
DOI 10.3390/ijms24032633
narrative_reviewCited 350×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Selenium deficiency impairs immune function, increases susceptibility to infections (including HIV and COVID-19), and is linked to cardiovascular diseases such as Keshan disease and myocardial infarction.Moderate
- Excessive selenium intake (above nutritional levels) is associated with an increased risk of type 2 diabetes, insulin resistance, and dyslipidemia.Moderate
Related findings · Micronutrients & recovery
- Trans fats (industrial trans-fatty acids) are unequivocally harmful and should be completely avoided as they raise LDL-C, TGs, and Apo B while lowering HDL-C.Strong
- For menopausal women with osteoporosis, first-line pharmacologic therapies include alendronate, risedronate, zoledronic acid, and denosumab for the prevention of hip, nonvertebral, and vertebral fractures.Strong
- Folic acid fortification of flour prevents neural tube birth defects, and mandatory fortification is more effective than voluntary supplementation alone.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →