Hi Alex! Great question. I think it’s best to work out first thing, and I’ve seen great results when morning workouts are done in conjunction with intermittent fasting. On strength training days, begin your feeding window right after your workout (for that post-workout protein). I.F. doesn't have to be done every day (although it’s great if you can), try it 2-3 days per week, and plan it around your workouts.