Nutrients are the building blocks of all living things. They allow both survival and growth. The nutrient requirements of a dog vary with: age, stage of growth, activity, stress, genetics etc.

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There are two categories of nutrients:

• macronutrients, and

• micronutrients.

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Macronutrients are needed in large quantities. They are the sole source of energy (kiloJoules) and are the basic building blocks of nutrition.

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Macronutrients include:

• proteins

• fats

• carbohydrates.

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Micronutrients are required in smaller amounts and include:

• vitamins

• minerals

• trace or micronutrients.

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