Which of the following nutrients is primarily associated with strength gain?

Proteins are vital for strength gain due to their integral role in muscle repair and growth. When you engage in strength training, tiny tears occur in muscle fibers. Proteins, composed of amino acids, are needed to repair these tears, leading to muscle hypertrophy, which is the increase in muscle size and strength.

Additionally, proteins are essential in the synthesis of enzymes and hormones that regulate various processes in the body, including those associated with muscle function and metabolism. Consuming an adequate amount of protein in conjunction with resistance training has been shown to enhance strength gains and improve overall physical performance.

While fats and carbohydrates also play significant roles in providing energy and supporting overall health, they do not directly influence muscle repair and growth to the same extent that proteins do. Vitamins are crucial for various biochemical reactions in the body, but they do not provide the structural components needed for muscle building. Thus, proteins are the primary nutrient associated with strength gains.