The studies weren't perfect — some didn't report enough details, and one didn't match the workout volume, which could affect how we interpret the results.

The studies weren’t perfect, but they were decent quality overall — so the results aren’t likely wrong just because of bad methods, even if they didn’t track who stuck to the workouts.

Many of the studies used in this review had weaknesses, like not fully accounting for factors like weight or family history of diabetes, which means we should be cautious about trusting the results too much.