Progress Photos

Progress photos are the most honest record of appearance change, which is what many people actually care about and what the scale can hide (recomposition: losing fat while gaining muscle leaves weight flat but visibly changes the body). They are especially valuable over longer intervals (every 2–4 weeks) because change is invisible day to day.

For comparable photos, standardize:

• Lighting and location — same room, same light source; harsh overhead light dramatizes shadows, soft even light is more honest.
• Time of day — morning, fasted, same as the weigh-in (see bodyweight-tracking).
• Poses and angles — front, side, back, relaxed (and optionally flexed); same distance and camera height each time.
• Clothing — minimal and consistent.

Store with the date so the app can show before/after sliders or grids. Photos pair with girth-measurements and body-fat-estimates to triangulate composition.

A wellness caveat: for some people, frequent self-photos worsen body-image preoccupation. Where that's a risk, take them sparingly and emphasize performance and health metrics instead (see body-image).

• Best captured every 2–4 weeks; change is invisible day to day.
• Standardize lighting, location, time of day, poses/angles, distance, clothing.
• Reveal recomposition the scale hides (fat down, muscle up, weight flat).
• Store dated; support before/after comparison views.
• Use sparingly where they fuel body-image preoccupation.

• girth-measurements — numeric complement to the visual.
• body-fat-estimates — triangulate composition.
• bodyweight-tracking — photos explain a flat scale.
• body-image — psychological caution on frequency.
• body-metrics-overview — one of the four body-metric pillars.