The Claim
Selenium intake exhibits a U-shaped relationship with health outcomes, such that both low and high levels of intake are associated with adverse metabolic effects, including insulin resistance and an increased risk of type 2 diabetes.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Both too little and too much selenium in the diet are linked to worse metabolic health, including higher rates of insulin resistance and type 2 diabetes.
See the scientific wording
Selenium intake follows a U-shaped relationship with health outcomes, where both deficiency and excess are associated with adverse metabolic effects, including insulin resistance and increased risk of type 2 diabetes.
Too little selenium stops the body from making key antioxidants, which lets harmful molecules build up and damage insulin receptors. Too much selenium overloads the system with selenium-containing enzymes that produce harmful byproducts, which also blocks insulin signals and stops cells from taking in sugar properly.
What the research says
1 studyStudy: Dietary Reference Intakes of Selenium for Chinese Residents.
Too little selenium can be bad for your health, and so can too much — this study says eating more than 255 micrograms a day may raise your risk of diabetes, but 50–60 micrograms is just right for most people.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.