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Asthma cases in Americans are about 75% higher today than they were in 1980.
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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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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
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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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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.