Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.