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Biology LibreTexts

5.1: Introduction

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  • Humans are omnivores in that they consume a variety of food types from several different ecosystem levels. The biomolecules we consume - carbohydrates, lipids, and proteins - provide us with energy and building blocks for our bodies to function. Vitamins and minerals are important dietary components required in small amounts. Water is not a nutrient or a source of calories but is critical to life.