noun
the regulation of the diet for the promotion of health
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The study of dietetics involves understanding the science behind nutrition and its effects on the human body.
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She decided to pursue a career in dietetics after seeing the positive impact of healthy eating on her own health.
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I'm trying to stick to this new dietetics plan, but I keep craving junk food.
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In a way, dietetics is like a roadmap for maintaining good health through proper nutrition.