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In fish and other wildlife, low levels of selenium cause deficiency while high levels cause toxicity. For example, in salmon, the optimal concentration of selenium in the fish tissue (whole body) is about 1 microgram selenium per gram of tissue (dry weight).
High selenium levels in waterways were found to cause congenital disorders in oviparous species, including wetland birds [104] and fish. [105] Elevated dietary methylmercury levels can amplify the harm of selenium toxicity in oviparous species. [106] [107]
Metal toxicity or metal poisoning is the ... Selenium poisoning has been observed even though Se is an essential trace element. The Tolerable Upper Intake Level is ...
In addition, the reported levels were based on dried tuna, instead of raw tuna flesh, resulting in a distortion with a minimum factor of 3.5. ... They added that selenium neutralised the potential ...
Selenium is a naturally occurring element in the environment, and is an essential dietary nutrient. However, in high concentrations, selenium bioaccumulates to toxic levels in tissues and can cause reproductive failure and birth defects, or deposit in sediments. [15]
U.S. congressional investigators found "dangerous levels of toxic heavy metals" in certain baby foods that could cause neurological damage, a House Oversight subcommittee said in a report released ...
Selenium is toxic in high concentrations. As sodium selenite, the chronic toxic dose for human beings was described as about 2.4 to 3 milligrams of selenium per day. [7] In 2000, the US Institute of Medicine set the adult Tolerable upper intake levels (UL) for selenium from all sources - food, drinking water and dietary supplements - at 400 μg/day. [8]
Petro said to consider other factors like self-screening, getting annual skin checks with a dermatologist, and increasing antioxidants, such as vitamins C, E, and A, zinc, selenium, beta carotene ...