can someone explain the 16hr no eat-8 hrs eat method please

I don't think that any extreme "diet" plan is a good idea. BUT...I just bought Bob Harper's "The Skinny Rules" and it is very good - certainly worth reading.

Just fyi fasting for 16 hours a day isn't good for your metabolism. It should be the other way around.
You want to eat every 3-4 hours to keep your blood sugar from spiking and to keep your metabolism stable.

This is complete misinformation...it does not matter if you eat all of your calories in one sitting - there is no scientific proof to back this metabolism nonsense up. The only danger with IF is if you binge easily - say you don't eat all day, come home from work starving, you could easily lose control.

It works for some people though and you can get great results especially if you're not a breakfast person. I eat all my calories from 1.30-9pm ish and works great.

You should eat all of your calories in that 8 hours. I think it's called the "Eat Stop Eat" method if you want to Google that. Or search it on here. There's also another fasting method I think. The difference is just the hours of fasting vs eating or something. And it's something you should only do once or twice a week, not every day.

You should eat all of your calories in that 8 hours. I think it's called the "Eat Stop Eat" method if you want to Google that. Or search it on here. There's also another fasting method I think. The difference is just the hours of fasting vs eating or something. And it's something you should only do once or twice a week, not every day.

Eat stop eat is a different form of Intermittent Fasting. With ESE, you eat normally say...Monday, stop eating after dinner, then you don't eat again until dinner the next day (24hrs). Then the next day you eat normally....don't eat after dinner, and then don't eat until dinner the next day. The rest of the week you're supposed to eat normally (at your MAINTENANCE level, not your deficit level).

The 16/8 eating method is meant to be maintained 7 days a week. You eat all of your deficit calories in that 8hr window (many people will do 19/5, and eat their calories in a 5hr window).

I personally have recently gone back doing both. I fast for 24hrs 3 days a week (meaning dinner to dinner), and eat on the 16/8 window the rest of the week, slightly over maintenance.

I don't think that any extreme "diet" plan is a good idea. BUT...I just bought Bob Harper's "The Skinny Rules" and it is very good - certainly worth reading.

This is not an extreme diet plan - you eat all your food in one day - its just the timing within that day.

I never said it increases it, I said it keeps it stable.
Even disregarding the metabolism statement I made, it is true that if you constantly spike your blood sugar by engaging in intermittent fasting you will store much more fat than if you eat balanced meals/snacks on a regular schedule.
Fasting can elevate cortisol levels. Cortisol raises blood sugar. Eating every 3-4 hours helps to keep a stable blood sugar during the day and prevents cortisol and various other stress hormones such as, epinephrine and norepinephrine from taking over your system.

Obviously, different things work for different people. I'm just offering the knowledge that I learned in school. You can take it and think about it, or discredit it, its up to you. And another obvious: as long as you eat at a deficit you will lose weight, although a lot of it will be lean muscle mass as opposed to fat (if you aren't eating right, if you're eating right you'll lose more fat).

I am pretty sure the claim in the first paragraph has not been shown to be true, but would love to see any articles/studies indicating it is.

What are the benefits etc? Would i have to eat 1200 cals in the eight hours? x

I started this 2 weeks ago. My last meal is at 9p.m and I break my fast at 1p.m the next day. I drink loads of water in-between. The only meal I miss out on is breakfast.

Benefits?? My high blood pressure has regulated

I never said it increases it, I said it keeps it stable.
Even disregarding the metabolism statement I made, it is true that if you constantly spike your blood sugar by engaging in intermittent fasting you will store much more fat than if you eat balanced meals/snacks on a regular schedule.
Fasting can elevate cortisol levels. Cortisol raises blood sugar. Eating every 3-4 hours helps to keep a stable blood sugar during the day and prevents cortisol and various other stress hormones such as, epinephrine and norepinephrine from taking over your system.

Obviously, different things work for different people. I'm just offering the knowledge that I learned in school. You can take it and think about it, or discredit it, its up to you. And another obvious: as long as you eat at a deficit you will lose weight, although a lot of it will be lean muscle mass as opposed to fat (if you aren't eating right, if you're eating right you'll lose more fat).

If your metabolism doesn't lower for 72hrs of NOT eating, what is there to stabilize?

So, we're completely disregarding your first argument. Check. Now we'll move onto your new argument.

Even disregarding the metabolism statement I made, it is true that if you constantly spike your blood sugar by engaging in intermittent fasting you will store much more fat than if you eat balanced meals/snacks on a regular schedule.
Fasting can elevate cortisol levels. Cortisol raises blood sugar. Eating every 3-4 hours helps to keep a stable blood sugar during the day and prevents cortisol and various other stress hormones such as, epinephrine and norepinephrine from taking over your system.

We'll do this again:

Many popular diets, such as The Zone and The South Beach diet, are based around the idea of controlling your insulin levels. These diets apparently accomplish this by eating small frequent meals that have a low effect on your blood sugar levels. While eating frequent small meals, or meals with a low ‘glycemic index’ (a measure of the meal’s effect on blood sugar) may help you ‘control’ or ‘even out’ your insulin levels, fasting for as little as 24 hours has been shown to drastically reduce your insulin levels.

Reference:
Halberg N, et al. Effect of intermittent fasting and refeeding on insulin action in healthy men. Journal of Applied Physiology 2005; 99:2128-2136

In research conducted on people who fasted for 72 hours, plasma insulin dropped dramatically, reaching a level that was less than half of the their initial levels. What’s even more impressive is that 70% of this reduction happened during the first 24 hours of fasting.

Reference:
Klein S, et al. Progressive Alterations in lipid and glucose metabolism during short-term fasting in young adult men. American Journal of Physiology 1993; 265 (Endocrinology and metabolism 28):E801-E806

Now I will address some of the other things you've mentioned, such as your reference to cortisol, epinephrine (adrenalin) and norepinephrine (noradrenalin). But first, you need to learn about a hormone called 'glucagon'.

If we consider fed and fasted to be the yin and yang of metabolism, then the hormonal equivalent to fed and fasted could be thought of as insulin and glucagon. Insulin is the dominant hormone in the fed state, which causes you to store food calories in the form of fat and glycogen. Glucagon is one of the dominant hormones in the fasted state that causes fat burning.

Quick review:
Insulin = Fat storage
Glucagon = Fat burning

The primary role of glucagon is to maintain your blood sugar levels while you fast. It does this by shifting the body into ‘burning’ mode.

Glucagon has some amazing effects on our body, including maintaining our blood sugar levels, increasing fat burning, decreasing the production of cholesterol, and increasing the release of extra fluids from the body.
Because of the typical way we eat, we spend almost all of our time in an ‘insulin dominant’ metabolism (remember Insulin = Fat storage). By adding fasting into your lifestyle, you allow your body to revert back to a natural balance between an ‘insulin dominant’ metabolism and a ‘glucagon dominant’ metabolism.

I'm sorry, but I'm not seeing anything showing that not eating for even 72hrs, much less 24, or even 16...causes your body to store fat.

Lets move on to epinephrine and norepinephrine. 'Stress' hormones as you called them:

Epinephrine and norepinephrine are both fight or flight hormones, often called adrenalin and noradrenalin. When they are released into the blood stream, they trigger the release of glucose from energy stores, and increase fat burning. They also make you feel awake and alert. Fasting increases the amounts of both of these hormones in your blood. This is your body’s way of maintaining your blood sugar levels and increasing your fuel supply by helping to release fatty acids from your fat stores.

Again...I see nothing referencing storage of fat in a fasted state, but lets move on, to growth hormone:

Growth hormone is getting a lot of press these days. Rumor mills are buzzing that many top-level Hollywood celebrities are taking growth hormone because it helps burn fat, build muscle, and supposedly has ‘anti-aging’ effects. Many supplement companies are scurrying around trying to find anything that will allow them to say their products can increase growth hormone.
The ironic thing I learned from all this research is that if you want large increases in the amount of growth hormone released in your body, all you have to do is fast. Research has shown that short-term fasting can increase growth hormone levels by nearly six fold.

References:
Sarri KO, et al. Greek orthodox fasting rituals: a hidden characteristic of the Mediterranean diet of Crete. British Journal of Nutrition (2004), 92, 277-284

Hartman ML, et al. Augmented growth hormone (GH) secretory burst frequency and amplitude mediate enhanced CH secretion during a two-day fast in normal men. Journal of Clinical Endocrinology and Metabolism 1992; 74(4):757-765

Now...cortisol. I've found no information that fasting increases cortisol...as a matter of fact, with all of the hormones released that promote lean mass retention, I'd find it highly unlikely that our bodies would sabotage their own efforts by pumping cortisol into our systems. Regardless though, incorporating strength training into your exercise routine will eliminate this as an issue. Which brings me to another point. The MOST influential thing on what kind of weight you will lose when under a caloric restriction, isn't how, or when you eat. It's how you exercise. If you are performing no exercise whatsoever, intermittent fasting will be more effective at retaining lean mass than eating multiple times a day, simply through lack of insulin, and beneficial hormonal response. If you are going to eat multiple times a day, strength training will have the single greatest impact on what kind of weight you lose. For me, it's strength training and intermittent fasting. Incredibly simple, incredibly effective, and extremely liberating as my life is no longer fixated around how many times a day I have to eat.

Now, I want to make something clear. I understand you were sharing things you learned in school...but science has proven these things to be false. I've listed, in two posts...close to what...ten studies that draw 100% opposing conclusions to yours? What's even more sad, is that many of the studies that 'supposedly' support the '5+ meals a day' method of eating, have been purposely misinterpreted and pumped out as propaganda by the food industry. The same happened with cholesterol, and dietary fats. Read the studies for yourself, draw your own conclusions.

I'm just offering the knowledge that I learned in school.

You're in art school.

There is simply no real science on this one way or the other.

It is a hot topic.

Note that it entirely relates to your CARBOHYDRATE intake. It makes utterly no difference when you put protein / fat in your stomach.

if you are interested in this, you should buy and read "The carbohydrate addict's diet" by the doctors Heller and Heller.

They sort of originated this idea, and there is a vast amount of info in it on their books.

Frankly all you'll find on the internet is babble :-)

Don't undertake any extreme, ridiculous ideas, without a LOT of GOOD information -- read the book!

This post, along with all the other virtually identical posts you've made, is so inaccurate as to be laughable.

Look above, and check out all the 'real science' that I referenced.