I'm looking to make my own weight gainer shakes. The problem is the protein powder. I'm Muslim so I only eat Halal (pretty much just like Kosher... I can also eat Kosher) meat, and this includes sources of whey which use rennet.
Casein on the other hand, from what I understand, is purely from dairy products?
If I were to use two scoops of 100% casein protein powder for my shakes (3 a day, around 600-800 cal each), how would that be for a bulk? I wouldn't have any whey source for post-workout shakes. So what should I do for post-workout? Eat a meal instead? What should be in it?
Also, if anyone has recommendations for stores/products of Kosher/Halal Whey products and any Casein-only powders, please share!