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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.