Meaning: 'Foods' refers to the different types of items that can be eaten, such as fruits, vegetables, grains, and proteins, which are essential for a balanced diet.

Wrong options:

• diets: The term 'diets' refers to specific eating plans rather than the individual items consumed, making it less suitable in this context.
• snacks: 'Snacks' implies smaller, often less nutritious food items, which does not encompass the variety needed for a balanced diet as described in the passage.
• beverages: 'Beverages' refers to drinks, which do not include solid food items and therefore do not fit the context of the sentence discussing meals.

Correct answer: water

Explanation: The word 'water' is the correct answer as it is essential for hydration and bodily functions, fitting perfectly into the context of the sentence. It is a noun that is singular and aligns with the need for sufficient intake to support health.

Meaning: 'Water' is the clear, colorless liquid that is vital for life, necessary for hydration and various bodily processes.

Wrong options:

• coffees: 'Coffees' refers to a specific type of beverage that contains caffeine and is not essential for hydration in the same way as water.
• juices: 'Juices' are drinks made from fruits or vegetables but do not serve the same fundamental role as water in hydration.
• sodas: 'Sodas' are sugary carbonated drinks that can contribute to dehydration rather than support hydration.

Correct answer: saturated fats

Explanation: The term 'saturated fats' is the correct choice as it refers to a type of fat that is often linked to negative health outcomes when consumed in excess. It fits grammatically as a plural noun and contextually aligns with the discussion of reducing unhealthy food components.

Meaning: 'Saturated fats' are types of fats found in certain foods that can raise cholesterol levels and increase the risk of heart disease when consumed in high amounts.

Wrong options:

• proteins: 'Proteins' are essential nutrients necessary for body functions and do not fit the context of items to reduce for better health outcomes.
• carbohydrates: 'Carbohydrates' are a primary energy source and are not inherently unhealthy; thus, they do not fit the context of reduction for health improvement.
• vitamins: 'Vitamins' are essential nutrients that support health and should not be reduced, making this option unsuitable.

Correct answer: metabolic rate

Explanation: The phrase 'metabolic rate' is the correct answer as it refers to the rate at which the body burns calories and uses energy, which is directly influenced by physical activity. It fits grammatically and contextually within the sentence discussing the benefits of regular exercise.

Meaning: 'Metabolic rate' is the speed at which your body converts food into energy, which can be enhanced through physical activity.

Wrong options:

• hunger levels: 'Hunger levels' refer to the sensation of needing food and do not directly relate to the benefits of physical activity as described in the passage.
• energy levels: 'Energy levels' are influenced by various factors, including diet and sleep, but do not specifically capture the metabolic aspect discussed in the context of exercise.
• sleep quality: 'Sleep quality' pertains to how well one sleeps and is not a direct outcome of physical activity in the same way as metabolic rate.