Just wanted to add my experience with intermittent fasting. I'm 38 yrs old now. I started in May 2016. My rules are:

1) from 8pm until noon next day - eat nothing, drink lots of water and 1 cup of coffee when I get up. On training days BCAA during the training and whey shake afterwards.

2) from noon until 4pm - eat 2 meals of proteins, fresh veggies and fats. Important here is no carbs!

3) from 4pm until 8pm - eat everything, and lots of it :)

Results are great! I am close to max strength now, my concentration is better than ever, sugar cravings are next to none. I lost 5kg of mostly fats. Subjectively I look better than ever.

To conclude, the best is to try - maybe it'll fit you, maybe it won't. You have nothing to lose :)

EDIT: formatting