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Side Effects and Risks The first available combination birth control pills contained 50 micrograms of estrogen.—Wendy Wisner, Health, 23 Feb. 2025 One ounce of Brazil nuts (about six nuts) contains 544 micrograms (mcg) of selenium.3 Limit your intake of Brazil nuts to avoid having too much selenium in your body.—Carrie Madormo, Rn, Mph, Verywell Health, 1 Feb. 2025 Roman children likely had an extra 2.4 micrograms of lead per deciliter of blood from the empire’s air pollution.—Sarah Kuta, Smithsonian Magazine, 7 Jan. 2025 In 2020, the prior Trump administration raised the safety threshold even higher — to 15 micrograms per liter.—Rachel Frazin, The Hill, 6 Dec. 2024 See All Example Sentences for microgram
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