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Question 1:

Which of the following is a commonly used sports supplement for enhancing muscular strength and power?

A) Creatine
B) Vitamin C
C) Iron
D) Calcium

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Explanation: The correct answer is A) Creatine. Creatine is a widely used sports supplement that has been shown to enhance muscular strength and power. It is naturally found in small amounts in foods like meat and fish and can be supplemented to increase the body's creatine stores.

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Question 2:

Which of the following sports supplements may help improve endurance performance by increasing the oxygen-carrying capacity of the blood?

A) Beta-alanine
B) Caffeine
C) Iron
D) Echinacea

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Explanation: The correct answer is C) Iron. Iron is an essential mineral involved in the production of red blood cells and the transportation of oxygen. Adequate iron levels in the body can help improve endurance performance by increasing the oxygen-carrying capacity of the blood.

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Question 3:

Which of the following statements about protein supplements is true?

A) Protein supplements are necessary for all athletes.
B) Protein supplements are superior to whole food protein sources.
C) Protein supplements should only be consumed immediatelyafter exercise.
D) Protein supplements can be a convenient way to meet protein needs, but whole food sources are also important.

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Explanation: The correct answer is D) Protein supplements can be a convenient way to meet protein needs, but whole food sources are also important. While protein supplements can be a convenient option for athletes to meet their protein requirements, whole food sources like lean meats, poultry, fish, dairy, and legumes should still form the foundation of a well-rounded sports nutrition plan.

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Question 4:

Which of the following is an example of a banned substance in sports due to its potential performance-enhancing effects?

A) Vitamin D
B) Magnesium
C) Caffeine
D) Omega-3 fatty acids

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Explanation: The correct answer is C) Caffeine. Caffeine is a stimulant that can enhance alertness, focus, and performance. However, it is considered a banned substance in certain sports due to its potential performance-enhancing effects and is regulated by anti-doping organizations.

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Question 5:

Which of the following sports supplements is commonly used to promote muscle recovery and reduce exercise-induced muscle damage?

A) Omega-3 fatty acids
B) Glucosamine
C) Branched-chain amino acids (BCAAs)
D) Zinc

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Explanation: The correct answer is C) Branched-chain amino acids (BCAAs). BCAAs, including leucine, isoleucine, and valine, are commonly used sports supplements to promote muscle recovery and reduce exercise-induced muscle damage. They are believed to enhance muscle protein synthesis and decrease muscle protein breakdown.