Because of the potential for side effects and interactions with medications, you should take dietary supplements only under the supervision of a knowledgeable health care provider.
Talk to your doctor before taking more than the recommended daily allowance of selenium. Although doses for some conditions are 200 mcg, there is some evidence that this amount could increase your risk for diabetes. Do not exceed the tolerable upper limit of 400 mcg. Over time, high doses of selenium can be toxic. Side effects include fingernail loss, skin rash, fatigue, irritability, and weight loss.
People who have an underactive thyroid (hypothyroidism) or have had, or are at risk for, skin cancer should not take selenium without talking to their doctor. High selenium intake may increase the risk of diabetes and high cholesterol.
I haven't heard of Seleno-6. But I too am looking for answers to reduce my thick neck from hypothyroidism. I did not mean to scare you, but I too have Diabetes in my family and high cholesterol myself, so I needed just to make you aware of dosage precautions. Yes, its best to run this by a physician. Sometimes people don't realize even dietary supplements have interactions. We all have enough going on without adding fuel to the fire. Let me know if the Seleno-6 is a good choice.
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