Intermittent fasting is a tool, not a religion. Most of the result comes from the food eaten inside the window. The timer is the easy part.
Pick a window you can sustain
16:8 covers most people. 18:6 if you genuinely prefer fewer, larger meals. OMAD is for a small minority. Enerium lets you set any window and adjusts protein and hydration targets accordingly.
Photo log inside the window
Short eating windows make typing impractical. Vision AI is the right tool — open camera, shoot, eat. Calories logged in seconds, no spreadsheet at the lunch table.
Hydrate during the fast
Adaptive hydration matters more on fasting days because food is contributing zero water. Enerium silently raises the goal during fasting hours and reminds you on a pace, not a clock.
Training timing
Fasted training is fine if you can recover from it. Enerium tracks workout performance and sleep through Apple Health and warns when fasted sessions start dragging on heart-rate or recovery scores.