Basic Nutrition and Hydration Flashcards

A client consumes a meal containing 30 grams of protein, 50 grams of carbohydrates, and 20 grams of fat. What is the total number of calories in this meal?

Answer: 440 kcal

The total calories are calculated by multiplying the grams of each macronutrient by its caloric value and then summing the results. Protein has 4 kcal/gram, carbohydrates have 4 kcal/gram, and fat has 9 kcal/gram. The calculation is: (30g P x 4 kcal/g) + (50g C x 4 kcal/g) + (20g F x 9 kcal/g) = 120 + 200 + 180 = 500 kcal.

According to the Acceptable Macronutrient Distribution Ranges (AMDR), what percentage of an adult's total daily caloric intake should come from fat?

Answer: 20-35%

The Acceptable Macronutrient Distribution Range (AMDR) for fat for adults is 20-35% of total daily calories. This range ensures adequate intake of essential fatty acids and fat-soluble vitamins while reducing the risk of chronic diseases.

A client is preparing for a 90-minute cycling session in a warm environment. To prevent dehydration and performance decline, which beverage is most appropriate to consume DURING the activity?

Answer: A sports drink with carbohydrates and electrolytes

For exercise lasting longer than 60 minutes, especially in warm conditions, a sports drink containing carbohydrates (typically 6-8%) and electrolytes (like sodium) is recommended. This helps to replenish energy stores, replace electrolytes lost in sweat, and enhance fluid absorption, which is more effective than plain water alone in preventing performance decline.

Which of the following is a primary role of the B-complex vitamins in the body, making them particularly relevant for active individuals?

Answer: They act as coenzymes in energy metabolism.

The primary function of B-complex vitamins (like thiamin, riboflavin, and niacin) is to act as coenzymes in the metabolic processes that convert carbohydrates, fats, and proteins into usable energy (ATP). They do not provide energy directly but are essential for the body's energy production pathways.

A client wants to achieve a sustainable weight loss of approximately 1 pound per week through dietary changes alone. What is the generally recommended average daily caloric deficit to reach this goal?

Answer: 500 calories

One pound of body fat is approximately equivalent to 3,500 calories. To lose one pound in a week, a total deficit of 3,500 calories is required. When distributed over seven days, this amounts to a recommended daily caloric deficit of 500 calories (3500 calories / 7 days = 500 calories/day).

Which of the following food sources is considered a complete protein, meaning it contains all nine essential amino acids in adequate amounts?

Answer: Quinoa

A complete protein contains all nine essential amino acids. While most complete proteins are from animal sources, quinoa is a well-known plant-based exception. Lentils, almonds, and brown rice are considered incomplete proteins because they are low in one or more of the essential amino acids.