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I got my first DEXA scan this week. I've been using INBody scans for a while to track my progress, but the dexa is way more accurate, heres what to expect from both.
- InBody consistently underestimates fat percentage (by ~8-10%).
- Use InBody for Trends, Not Absolute Values
While absolute fat and muscle numbers may be off, InBody is still useful for tracking trends over time (e.g., whether body fat % is going up or down).
- Pay Attention to Hydration Levels
InBody’s accuracy is affected by hydration.
If you're dehydrated, InBody will overestimate body fat.
If you're highly hydrated (e.g., post-workout), InBody will underestimate fat and overestimate lean mass.
To get consistent results, always scan at the same time of day, ideally in a fasted state before workouts.
- Use DEXA Every 3-6 Months for Precision 1 reply
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