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Yes, Selenium's long term usage can cause type 2 diabetes as it affects the blood sugar level and may cause obesity. It is an anti-oxidant and its good for health if used in proper amount and not as a regular consumption. Too much of anything is not good :))
No undesirable side effects have been reported.
You can increase your selenium intake by consuming foods rich in selenium such as brazil nuts, seafood, organ meats, and sunflower seeds. Alternatively, you can take selenium supplements but make sure to consult with a healthcare provider before doing so to avoid any potential side effects from excessive selenium intake.
Ledum taken in the standard homeopathic dilutions has not been reported to cause side effects.
There are no established side effects of wheat grass.
Side effects vary by the type of essential oil used.
There are no side effects, but individual aggravations may occur.
The only side effects are individual aggravations that may occur.
There are no known side effects of Breema therapy in healthy people.
The drug Novolog can cause a variety of side effects. Some common side effects include swelling of hands or feet. Other side effects include confusion, uneven heart rate, extreme thirst and muscle weakness.
Ophiopogon does not appear to produce serious side effects when used as directed.
There are no known side effects to properly administered biofeedback or neurofeedback sessions.