How effective is not eating for losing weight?

Not eating is one of the worst things you can do if trying to lose weight. First, is it fair to assume that when you say you want to “lose weight” what you really mean is that you want to lose body fat? The number you see when you step onto a scale is not necessarily the best indicator of your body’s overall composition. It's the amount of fat your body has + the amount of muscle + water + waste + your bones & organs and so on, and so on. What you want is to target JUST losing body fat. So think of it as a simple math problem. There are 3,500 calories in each pound of fat on your body. So thin
What if this is not the case?
What if skipping breakfast daily is one of the most effective ways you can lose weight and keep it off long term?
When you delay your first meal for a few hours after waking you practice the Lean gains way of fasting or the 16:8 protocol.
This style of fasting was popularized by fitness guru at [url]WWW.Healthfitnessnobs.com[/url]
Long term weight and body fat loss. Increased energy and focus (after an adjustment period)
More efficient cellular repair and that's just the start.
The 16:8 protocol allows you to take in fewer calories over time without starving yourself. The best way to begin fasting is to start eating around 12 or 1 pm each day. Stop eating at 8 or 9 pm every evening. This gives you an 8-hour eating window and a 16 hour fasting period. If you are just starting to fast work your way up gradually to 16 hours especially if things get tough
The key is to practice fasting long term.
Embrace a marathon mentality you will be able to fast effectively for years to come.
Consider time-restricted eating (TRE) If skipping breakfast is not an option for you TRE is a great alternative. TRE allows you to have a narrow eating window and you’ll experience many of the same benefits as IF. Keep your blood sugar in check- Grazing all day spikes your blood sugar.
Reduce inflammation- TRE helps keep your gut healthy with good bacteria. Improve your relationship with food- You’ll begin to look at food as an energy source rather than pleasure. The best way to practice TRE is to have an eating window between 6–12 hours (the more narrow your eating window is the better)

An example would be:

Breakfast at 10 am
A small meal at 3 pm (if necessary)
Dinner at 8 pm
A whole foods diet is crucial to see the biggest benefits from IF and TRE.
If you eat a diet filled with heavily processed foods like the Standard American Diet (SAD) your efforts in fasting will be wasted.

Consume whole foods like:

Grass-fed Beef, Bison, Organic Chicken, Salmon, Wild Shrimp, Monkfish, Mussels, and Wild Catfish Wild Rice, Quinoa, Black Bean Pasta, and Sweet Potato Kale, Arugula, Spinach, and Watercress Garlic, Mushrooms, and Onion Organic dark chocolate, honey, and maple syrup
Your excess weight will fall off and stay off. Embrace sporadic eating
The best thing about TRE and IF is that you don’t have to practice it every day.

Summary

You may lose weight, but not the kind you want. When you deprive your body of nutrients your body goes into starvation mode and literally clings on to your fat because that is like it’s ¨survival mode¨. So no, it’s not effective. You will lose muscle which will make you look like you have more fat than you actually have. You might seem leaner at first because you are not bloated by food, but if you keep this up you will not look better and you will most definitely not feel better.
So what I suggest you do instead of starving yourself is eat healthy, look up some good recipes (eating healthy doesn't have to be boring) and start lifting weights and doing some cardio.