If pregnant or lactating, consult your physician before taking this product. Selenium is generally well tolerated, however large amounts can cause selenium toxicity. Symptoms of toxicity include nausea, vomiting, abdominal pain, nail changes, fatigue, irritability, hair loss, muscle pain and/or weight loss. Consult your physician for more information.
Selenium may be contra-indicated with blood thinning medications. There is evidence that selenium could reduce the effectiveness of HMG-CoA reductase inhibitors. Consult your physician for more information.