Kinesiology is the study of human movement, not diet and nutrition.
Not only movements, it's the whole shebang. Kinesiology is the study of physiological, mechanical, and psychological mechanisms. How the body uses food is a large part of it. It's basically a opening to being in the fitness industry, because that's where the majority of majors end up.
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"A Jedi must have the deepest commitment, the most serious mind," Yoda.