I find that I have extreme brain fog (and brain fatigue for that matter) when I eat wheat and sugary things. I have made a great effort in the past few weeks to radically reduce my sugar intake and limit wheat consumption. I have also been eating tons and tons of cooked vegetable dishes with brown rice (Indian, Morrocan, etc. -- you can't believe how many recipes there are for vegetables!). I have also reduced my chicken and fish intake. And forget about beef after the humane society's video. NO WAY! Well, the most amazing changes I have discovered in the past week are that I have a very clear mind and sharper concentration that lasts consistently all day! My skin is also softer and my eyes are brighter.. dark circles not quite so noticeable. My husband and I just got a juicer and we have been having carrot and celery juice every few days. My current issue with juicing is that it appears to cause an acid pH quite quickly, but I might be doing the wrong concoction of ingredients. I tried cabbage and beets one day but felt nauseous for the next 12 hours!