An 18-year-old girl was taken to the hospital with high blood pressure and headaches. Doctors noticed that she looked very thin and discovered she had a heart problem. After talking with her, the doctor discovered that her symptoms were caused by dieting. Which type of diet would most likely cause these types of difficulties?

Diet pills, especially stimulant-based pills, can raise blood pressure and cause headaches. They can also strain the heart, which fits the symptoms described. Fasting and low-carbohydrate diets may cause other problems, but they are less directly associated with this combination of high blood pressure and heart difficulties.

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