My predicament is that every two weeks or so, I have to fast for the entire day(religious reasons). This means no food at all, just some fruits and water.
You are talking about Ekadashi. Fruit and water are considered food. So if you are talking strictly speaking you probably shouldnt workout on dashami or dvadashi. Also when you break your fast make sure you get some elctrolytes like Gatorade and drink a shit ton of protein. You want to avoid refeeding syndrome (which is very bad).
Also as said before, it doesnt hurt to eat a lot before and after. If you can get “magic sauce” I would use that as well to prevent muscle wasting.
Speaking from personal expierience.
Is it okay to train on the days before the fast, or will the lack of food inhibit growth/recovery?
I just answered this.[/quote]
Correct, on Ekadasi. I don’t really eat much fruit, since it is supposed to be a fast, but I will load up on the day before from now on.