Good points and I see weight loss as an added bonus. Most important for me as mentioned is brain health and high energy levels (plus better sleep). I've heard that it takes 21 days (3 weeks) for the body to make adjustments and am hoping that I'll get there without an issue (meaning that I continue to feel as good as I have been feeling without craving bad foods).
Do keep in mind that the first lbs of weight loss is water. Less carbs means less water retention. Couple that with no caffeine, and you'll see an immediate reduction of 5-15 lbs just from water loss.
Also, 3 weeks seems to be the magic time frame. It takes about 3 weeks for ketosis to kick in. It also takes about 3 weeks to replace an old habit with a new one.
Our body is smart enough to know when we're full of it. More practically, I don't think our ancestors starved much longer than 3 weeks before a feast in the form of a meaty animal or grove of fruit/nut trees crossed their paths...
I don't have much. I defer to MarksDailyApple, since he's the expert, and I'm not.
The one area I think it will be of help to me is alleviating my dry skin, especially in the winter. Our skin is moisturized from the inside out, so adding essential fats can only help, not hurt.
My discipline has been lacking. I've been doing the StrongLifts.com 5x5 program for the last 8 weeks, so I'm thinking of complementing it with a 60-day program of the quinoa/chicken/veggies meal that I mentioned previously. At the very least, I need the protein as I'm nearing the weight level where my diet will lead to plateaus if I don't change, and adopt an "eat healthy to grow muscle" plan.
Also, myproblem is my gut, which research suggests is due to insulin resistance. Which means I need get below 50g/day carbs (and eliminate all fructose) in order to get the insulin sensitivity back to where it belongs. Then I should see a serious reduction in the waist line. Especially as I blow past 200 lbs on my squat / deadlift.