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Plants and Society, 3/e
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Human Nutrition

Concept Quizzes


Humans have a dietary requirement for proteins, although they are needed in smaller quantities than carbohydrates and fats.

Based on your caloric intake, determine your protein requirement.

Vitamins are classified according to their solubility. The water-soluble vitamins include C and the B complex. A,D,E and K are the fat-soluble vitamins.

Many people subscribe to the notion of vitamin megadosing to ensure better health and consume many times the RDI for particular vitamins. What are the practical effects of vitamin solubility on this practice?

The macronutrients (carbohydrates, proteins, and fats) are required in relatively large amounts for proper nutrition, whereas the micronutrients, the vitamins and minerals, are needed in smaller quantities.

Since micronutrients are required in much smaller amounts than macronutrients, are they any less important to the human diet? Explain.