How starvation mode work?

Question

I have a question about going into starvation mode. Hypnotically if I were to eat 4000 calories a day but spent 10,000 would my metabolism slow or shut down.

Basically I want to know if it is your calorie deficit that cause starvation mode or is it going under a calories intake for the day that causes it? I have heard a man will not generally go into starvation if they stay about 1500 calories a day

Answer 1

Has to do with your basal metabolic rate. Basically if you intake less than 60% of that number you body will believe it is starving and start to shutdown AND when you feed it it will store most of those calories as fat because it assumes it will need them later. To find your BMR goto

http://health.discovery.com/tools/calculators/basal/basal.html

Answer 2

1500 calories a day is a low amount for a man to consume in one day. i consume about 1800 to 2000 a day. a woman would need to consume 1500 a day to lose weight. at that rate the body will go into starvation mode because of the lack of food. causing your body to store all the food you consume and therefore causing you to gain weight.

Answer 3

If you don't eat enough, your body shuts down - lowers your metabolism, and you actually end up retaining more weight.

The only proven, sure-fire way of losing weight is to ditch the sugary drinks, snacks, and junk food. Eat lots of fresh fruits and vegetables, and work out on a regular basis.

Almost every diet scheme, or 'get thin quick' scam is exactly that - a scam.

If it sounds too good to be true, it almost always is.

Answer 4

You cant burn off 10000 calories its impossible after a while once you surpass what you have eaten you will get tired and hungry and have to stop burning calories. It wouldn't happen unless you were climbing mountains for a week with no food or water.