Moderate

Which of the following ergogenic aids have been supported by scientific evidence:___________________________?

Correct answer: D. A and B.

  • A. Water.
  • B. High carbohydrate diet.
  • C. High protein diet.
  • D. A and B.

Explanation

Water supports hydration, while a high-carbohydrate diet can improve endurance by maintaining muscle glycogen stores; both have scientific support as performance aids. A high-protein diet is useful for recovery and muscle growth but is not generally an ergogenic aid for everyone.

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