bro NAC is N-acetyl-cysteine sp? it helps elevate your glutathione level after a work out, and so does ALA.
ALA from the research i have done on it, and what people here have written on it, it's an amazing supplement that people take for granted. ALA is good for your liver, helps elevate glutathione levels, helps shuttle carbs into muscle, can be an insulin mimicker, can help spare muscle, can help you get into ketosis much faster, when dieting this is also good, i know there's a lot more to ALA than all that but i'd have to search for the info and i don't want to. I just know it's a very good supplement.
All the digestive stuff you see as a waste i see as necessary. When consuming as much protein as one would need to grow (or bulk) these digestive products come in handy. People wouldn't be taking papaya enzymes, digestive enzymes, or the new craze for ginger root because it's even better than papaya enzymes for protein digestion if it didn't work. Wouldn't you want to be able to get the most out of what you eat???
About fiber, i think it is essential to consume enough quantity of fiber. Fiber helps detoxify your body for one thing, it can slow down digestion of food so that you don't get an insulin spike when you don't want one, it helps you shit! and nobody wants to be constipated eating 200-300g of protein a day. Fiber has many purposes, more than what i listed. This to me is essential, the above supplements are just to your benefit to take them.
Now about the dextrose. I use it post workout. 80g dextrose and 40g whey. I use the dextrose for an insulin spike. You could also use honey. There is a very good post on this in diet boards you should read it. This is the most important meal on a work out day to me, and i want to use the most optimal time for growth w/ the correct stuff.
Now w/ ZMA (this is getting repetitive btw) i never said i took ZMA. i said i took zinc/magnesium pills. We all know by now what a deficiency in zinc means, and if you don't... read a ZMA article. So i don't buy ZMA persay, i buy the mineral combo that costs me 1/3 the price. And don't tell me i can eat the correct amount, because studies have shown it is more beneficial to take the damn pill w/ vitamins and minerals. And dont' tell me about Milk or Calcium because who said i was drinking milke w/ ZMA or taking Ca w/ it?
Finally BCAA's. I never said i was snacking on them. I take a few while i work out, and a few w/ my protein shake. Studies have also shown that the more BCAA's you have w/ your post workout shake the more beneficial it is to you.
Now i've provided you w/ a little insight on this stuff, if you want the studies do a search, if you want more info... do a search.