The kidneys are most immediately at risk from a low-carb diet due to increased protein intake, which can place extra strain on them. A drastic reduction in carbohydrates leads to ketosis, producing byproducts that the kidneys need to filter. Therefore, among the choices provided, the kidneys (Option D) are the correct answer. ;
The kidneys are in the most immediate danger from a low-carbohydrate diet due to the increased strain from higher protein intake and the need to filter byproducts from protein metabolism. Therefore, the correct answer is Option D, the kidneys.
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