If you want to keep track of what you take on what day, you could just enter each serving of whatever you're taking as a zero-calorie custom food (with appropriate vitamin %s filled in if for example a multi-vitamin), then track it like any other food.
1) eat real food - more vegetables, moderate meat, moderate fruits, less grains, less sugar, less vegetable oils.
2) exercise - moderate intensity cardio, sprinting, heavy lifting, dedicated stretching and mobility.
3) live - relax, de-stress, meditate.
Disclaimer: I'm not professionally qualified to make any formal recommendations. I've just done my homework and I'm my own guinea pig. All of my data, unless otherwise cited, comes from a sample size of n=1 (me).