Is caseine protein as good and clean as the isolate, or it will have more lactose and carbs in it? What would be a better choice for the night - caseine or isolate?
not only should you choose isolate but you should choose a top quality brand. read the labels bro. you will find most of these brands are a joke, they got HFCS and hydrogenated oils.. that is a treat, not nutrition
Both a pure whey isolate and a good quality casein supplement will have no lactose per serving. They are two very different protein supplements however.
Milk protein is naturally comprised of roughly 80% casein and 20% whey. Whey protein is very fast digesting and rapidly assimilated which makes it optimal for use around workout times. Casein protein coagulates and creates a gel in the stomach. Casein protein is very slow digesting and it optimal for use around bed time.
The biggest thing though is to read the ingredients list carefully of whatever protein supplement you are planning on using. A lot of protein supplements have carbohydrate fillers and sugar added. There are a lot of good products on the market but I personally use isolation from n2bm.com as my whey protein isolate.
As long as you get a high quality protein, both the casein and isolates are very clean products and have no lactose in them. However, they are quite different in the way they work (as it has already been explained by @muskate), so you should use them for the right purposes.
I would use a pure whey isolate around training times and as needed to fill protein macro requirements and use a casein right before bed as it will digest very slowly.
Is caseine protein as good and clean as the isolate, or it will have more lactose and carbs in it? What would be a better choice for the night - caseine or isolate?