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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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The horizontal fraction bar was introduced by the Arabs.