The body does not use proteins for absorbing certain vitamins, as this process mainly involves other mechanisms. In contrast, repairing muscles, producing hormones, and making hemoglobin are all tasks that require proteins. Therefore, the correct answer is D. ;
The body does not utilize proteins for the absorption of certain vitamins, making option D the correct choice. Instead, proteins are essential for repairing muscles, producing hormones, and making hemoglobin. Absorption of vitamins primarily involves other processes rather than protein usage.
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