Which factor is unlikely to improve insulin sensitivity?

Consuming a high-sugar diet is unlikely to improve insulin sensitivity because excessive sugar intake, particularly from refined and processed sources, can lead to increased insulin resistance over time. When the body regularly experiences high levels of glucose in the bloodstream, it has to produce more insulin to manage and lower those levels. This chronic high demand on the pancreas can result in the body becoming less responsive to insulin, ultimately diminishing insulin sensitivity. Conversely, regular exercise such as weightlifting, weight reduction, and maintaining a balanced diet all contribute positively to insulin sensitivity by enhancing glucose uptake by the muscles, reducing fatty liver accumulation, and promoting overall metabolic health.