We do kind of a modified Feingold diet. The big part is taking out ALL food dyes. This is actually pretty easy once you've read every single label in the grocery store
We also do no apple juice, no milk (whole milk is fine, not 2%) because of a natural preservative in it. We do allow her a bunch of the fruits and veggies on it, as the whole versions of the foods don't seem to react with her (some fruits and veggies are a no-no on this diet).
I believe we're lucky, living in a foodie area, that we have a lot of choices in our selection of foods. When I visit my mom or sister, I have a hard time shopping for some basics. But my daughter is also a vegetarian.
Artificial food dye is banned in the UK and many European countries, and there are more and more companies that are using food to dye their foods rather than chemicals. For example, yogurt used to have very little selection, and now I can get mostly what we want. Just look at every label. You'd be surprised at what doesn't have food dye. We get a lot of lemonade, usually the Simply or Newman's brands. Yoplait yogurt. Annie's bunny snacks or Target's organic snacks so she can have the fruit chews in her lunch like the other kids. We don't eat a lot of processed junk, but there are options even for junk, like getting Kettle potato chips instead of Doritos. Chocolate candies instead of just candy, and even then, Trader Joes has some inexpensive non-chocolate candy that she can eat. We give her almond or coconut milk (this is kind of new, not sure if it's in your area, but it's the closest thing to milk I've had, it's decent tasting, and will be right with the soy/rice/almond milk). Even if you're at a fast food place, get a sprite instead of a coke or minute maid lemonade, at least there is only one evil in Sprite (HFCS).
Your questions:
1. Just read the labels, find alternatives to your favorites (or read the labels and realize it's actually grosser than you thought and will stop eating it)
2. Nope, not once you know what is safe and what isn't. Even pre-reading my daughter could pick something up and look for the numbers and know if it was okay or not.
3. There is a Feingold website, but I think they want you to buy things. You can find most info online, there was a great article in Mothering magazine maybe a 6-8 years ago.
4. Not sure, results vary by child, but it doesn't help mine with anxiety.
5. All dye, the natural preservatives I can't remember the name to, and there are some other additives that trigger some kids, I'm just bad with remembering the names of things.
6. No more totally uncontrolable freakouts (her freakouts are a lesser degree, and she communicates through them, rather than totally going off the deep end). The worst case of food dye freakout she had was 2 years ago and she accidentally got red. We were camping with friends, I left her with 7 men and 1 woman in the middle of the freakout so I could take a break, breathe, cry a little and pee. I came back to find her tied to a chair with the woman sort of sitting on her. They couldn't control her. husband gave her some gatorade a couple months ago when she was sick, and I could see her eyes bugging out like she was on speed. He felt so bad.
7. I don't know yet, no natural medications have worked so far. Fish oil helps her in school a little just for a brain boost. She needs to go on medications now, but it's not for hyperactivity.
Doing this is WAY more easier than the girlfriend/CF diet (tastes better too). But again, I'm in NorCal, total foodie heaven and liberals galore who actually care what we eat and do something about it
We have a Whole Foods, Trader Joes, Raleys/Nob Hill, Safeway, Lucky, real butchers, fish markets, cheese shop, farmers market, local foods all right here in town.