Hi and welcome:

Camp, I have no idea how to respond to that question – never seen it from a newbie.

Lion – you can eat 5/600 calories of whatever foods you want. Most eat one meal late in the day.

Here are some tips for newbies: http://thefastdiet.co.uk/forums/topic/warnings-to-newbies/

Good Luck!

Sleeping is very usefull tool for all diets.
Don’t buy a lot of food for a fasting diet.
Stay away from caffeine foods as it will speed up your metabolism.
I like the water suggestion especially if you just eaten. It’ll help “feel” fuller.
Don’t expect dramatic results right away. I weigh in once a month and I’m just fine. I instead focus on making what food I do get flavorful and appealing. I can’t speak for anyone else but myself and I don’t have any medical credentials whatsoever, but a little exercise can trigger appetite. So when I first started semi fasting with 600 calories I gave myself two weeks to adjust to the low calorie days. With no grief if I went over six hundred. For me it was like quitting smoking. I craved food even when I wasn’t hungry or having hunger pangs. At the ten week mark I was enjoy my little meal days and found a lot less challenging. It was and still is difficult to pull myself away from family and friends on fasting days when they enjoying a good filling. I tend to go read or do something inactive to pass time and keep my mind distracted. Many times going to bed early. It started becoming a new routine to have ME time on fasting days, because I was being handed cookies and bacon on fasting days. I have a furious appetite for just about everything. I would get testy to my friends and family even though they were just offering to share. I love them too. It was up to me to create time and space away from temptations.

I found that when restarting, for instance after a week where I didn’t fast at all. I will review a recipe journal I keep. I have some food choices that work for me on day 1 better than others. I sometimes sit on a stability ball or exercise ball while waiting tv just to signal to everyone not to offer me anything. I would watch a single tv program then go somewhere else except to a grocery. So I’m not just sitting watching a bunch of food commercials then going to the store hungry. Instead I’ll go reorganize a closet or toolbox or go to my room, and learn something on my academic bucket list. Like memorizing all the vitamin and minerals, which vegtables are best for fasting according to nutrition. Or simply playing some fun online game to kill time.
I suspect that fasting for DNA repair conditioning and good sleep play into each other. I also researched what drinks are best for hydration. The me time on fasting days has become a journey. As I pull myself away from family, friends, and neighbors two or three times a week. I take pause to make plans on non fasting days to do more with them. Basically for me that just means Tuesday’s and Thursdays I’m socially proactive. So many of my friends have health food recipies and advice when I visit them they are happy to have me over to cook up their dishes. I get giddy inside getting my friends and family to do the cooking on non fasting days. Sometimes I spend less than $10 dollars a week on food, which is mostly fresh citrus if they’re buying my health food on non fasting days and I’m eating from the garden on fasting days in the summer. I grow 12 asparagus plants around my property. So I can easily eat 600 calories from those plants a day, but seek friends to share them with. Where my family fails to embrace my new fondness for vegtables, I find myself seeking new and old friends with vegtable gardens. I’ve wrote this to pass time in the middle of night till I’m sleepy again, tommorow is a lifting day for me. So I want to weight and eat with my lifting friends. I apologize for my poor writing skills, and again wish you luck wherever you are.
May good luck be with you.