I had read about it some years ago, though they hadn't named it. It was a study of diabetics, to see if fasting one or two days a week would help glucose tolerance (it did).
I don't have any information as to which works better though ... fast-5 lowered my blood glucose from 105 to 83, which was good enough by me. Also I am very lousy at counting calories, and it's easier for me to keep a habit if it's the same thing every day. I also have had a big problem of spending all day in the kitchen ... since we don't use prepared food or eat out, I have to make all my own meals. One meal is way easier than three! Before I did Fast-5, I made breakfast, lunch, and dinner, and cleanup, and all day was in the kitchen. Now I make dinner, and everyone eats whatever they feel like for breakfast and snacks. In practice, this means everyone gets one main meal a day, and it's worked out fine.
Another similar program is The Warrior Diet, which is what I read before Fast-5. Basically it's not much different ... raw fruits and vegies are allowed during the day, which makes it way easy to start out. But after a few weeks I just forgot to eat the raw foods so it ended up being the same thing. The other people in the group I was in had the same experience.
The main tweaks that made it work for me though, are the ones I've mentioned: avoiding fructose/sucrose, using MCT instead of other fats, eating plenty of eggs and fish, adding lemon juice and vinegar.
Now, the 5:2 book emphasizes "healthy foods" like fruits and vegies, and you'll notice I don't mention them much. I've found it interesting that they don't seem to make much difference in weight loss. If anything, "smoothies" may be what torpedoed my weight loss some time ago. So I've been going through the book "What I Eat" ... which shows a typical meal for 80 people around the world. It really is super-interesting.
Near as I can tell, the really healthy-looking people have a huge range of caloric intakes, but very few have much in the way of fresh fruits and vegies. The idea of a "salad" is mostly in the American group, and most of that group are also living off diet soda and stuff like packaged crackers. The healthiest older people in the group all seem to be Asian, and living mostly off rice, pork and eggs, and soups (which include greens and vegies). Very little fruit or raw vegies. This kind of makes sense, since raw vegies are a huge source of contamination (as is now becoming a more well-known problem here too).
All of which is mainly to say: EXPERIMENT! People who write books are giving their opinions, but their opinions tend to mirror the current meme, which may or may not work for you.
On Wed, Aug 21, 2013 at 6:56 PM, tfoley926 <travis.foley@gmail.com> wrote:
Has anyone tried the 5:2 fast diet? I just ran across it today...
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