>>hey I wanna get into fasting. I read that most health problems are caused by eating too much our bodies are getting too much protein so it starts to create things with all the excess protein IE tumors etc..
Not at all clear that "most health problems" are caused by "getting too much protein," and that's a pretty 1970s idea. But I don't want to get into that debate right now.
I'd encourage everyone who doesn't have major contraindications to try fasting, but here are a few points.
1) The first two days are the hardest. This is because the body is doing major readjustments--the biggest one is switching to relying on fat as the main fuel source. (People on low-carb diets are always using fat as their main fuel source, so people who eat low-carb can usually move into a fast without much adaptation. If you are a high-carb, low-fat person, these two days will likely make your brain sluggish, and you may get the 'low-carb flu.')
2) Hunger usually falls sharply by the third day. 72 hours is the magic time for fasting. Autophagy gets rolling, eliminating sick cells. The immune system resets. I don't bother fasting for less than 72 hours. The first 48 are the hard part, so why do the hard part and then stop?
3) Past 72 hours, fasting is a breeze...unless you get ravenously hungry. Getting really really hungry on Day 4 or 7 or whatever is a good signal to break your fast. As Andey said in the post above, "listen to your body." But also be aware your body will lie to you for the first 48 hours!
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A few tips:
If you routinely drink alcohol, taper down before you start a fast.
If you are addicted to caffeine, consider continuing to drink caffeine during the fast. I'm not caffeine-addicted, but I've fasted with people who are, and withdrawal makes things really unpleasant. And, despite all the research they've done trying to show that caffeine is The Devil, it actually seems to be beneficial or, at worst, neutral.
If you usually eat a high-carb diet, the fast will be easier if you eat low-carb for a few days first. The metabolic state--and all the relevant enzyme supplies--in fasting are very similar to low-carb dieting. The discomfort some people get from fasting is from switching from glucose/sugar as the main fuel to fat/ketones.
As Andey mentions, electrolytes are very important. Good to keep some potassium & magnesium supplements on hand.
This ain't rocket science. People have been fasting for thousands of years. And I have fasted occasionally since I was 12 (I'm now 64).
Oh, and make sure you have a lot to do. If you aren't eating food, procuring food, preparing food, and cleaning up after food, there are a whole lot more hours in the day!
