Which of the following is likely to have the greatest impact on improving physical fitness?

• A. Taking your dog for a short walk to your mailbox once a week.
• B. Eating junk food but taking a multivitamin supplement every day to meet micronutrient needs.
• C. Reaching the random step goal on your smart watch each day, which isn't tailored to your personal needs.
• D. Consistently eating a balanced, nutrient-dense diet to support training, recovery, & overall health.

Answer: (D)

Verified step by step guidance

1. Understand the concept of physical fitness, which involves a combination of cardiovascular endurance, muscular strength, flexibility, and overall health.
2. Evaluate the options provided in the problem and assess their impact on physical fitness. For example, taking a short walk once a week is unlikely to significantly improve fitness due to its infrequency and low intensity.
3. Analyze the role of nutrition in physical fitness. Eating junk food, even with a multivitamin supplement, does not provide the necessary macronutrients (carbohydrates, proteins, and fats) and overall balanced nutrition required for optimal physical performance and recovery.
4. Consider the importance of personalized fitness goals. Reaching a random step goal on a smart watch may not align with an individual's specific fitness needs or provide sufficient intensity or variety to improve physical fitness.
5. Conclude that consistently eating a balanced, nutrient-dense diet supports training, recovery, and overall health, which is essential for improving physical fitness. This approach provides the body with the necessary nutrients to perform and recover effectively.