So this is your chance! Youâre in recovery now and you have the opportunity to build the life youâve always wanted! 1  To get started, look in your heart and soul and find that thing that makes life worth living â and then build a long-term goal around it.  Once youâve got this, the rest is simply mechanics and sweat.
This will provide both fast-acting and sustainable energy to your body. Try to eat a snack within two hours of exercising, but wait a minimum of 15 minutes after exercising before you eat. Bring a snack along to the gym with you, so you can eat as soon as your workout is over.
No relation with lunch , as such because lunch you will be having in afternoon and gym in evening. But if you are eating again before workout like carbs / pre workout stuffs etc it would be good to have 30 - 45 mins gap after eating. Reason is some people feel nauseous because the metabolic activity plus physical activity and high heart rate. To be on safer side have some thing before gym but a 30 mins gap will be good enough.