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Biology

Core Concepts in Nutrition

Quick fact

The human body requires more than 40 different nutrients daily, yet no single food provides all of them—which is why dietary variety is a cornerstone of nutrition.

Why this is interesting

You've probably heard that 'you are what you eat,' but why does eating an apple nourish you differently than eating a candy bar? The answer lies in a few core concepts that transform food into fuel, structure, and signals for your body.