An average person, at rest, will need about 60 calories per hour to stay alive (about 1,500 calories per day). A moderately active person will burn another 500 calories a day in his activities of daily living. So, on average, a person needs 2,000 calories a day.
Now, there is about 4,000 calories (1 gram of fat =9 calories, times 454 grams in a pound) to a pound of fat. For every 10 grams of fat lost, there is about a gram of water that it is lost with it. Thus, you really need to burn about 3,600 calories to lose one pound.
If you are eating only 100 calories a day, you would be losing 1,900 calories in a day, or 13,300 calories in a week, which is about 3 and 1/2 pounds of weight loss.
There is one more wrinkle to this, though. When you initially begin to lose weight, the body will first lose the stores of glycogen in the liver. The body stores about 2 pounds of glycogen. Glycogen loves water, and for every pound of glycogen, there is between 1-2 pounds (really 1/2 liter) of water with the glycogen. So, for every gram of glycogen lost, there is about 1 centiliter of water lost. Unlike fat, glycogen produces only 4 calories per gram. So, 2 pounds of glycogen produce only 3,600 calories (454 grams in 1 lb X 2 lb X 4 calories per gram). So, within 2 days, an ordinary person, having lost 3,600 calories, will lose 2 lb of glycogen, and 2 lb of water! Therefore, within the first 2 days, the person will have lost 4 lb of weight!
When you consider the above, then, on a 100 calorie a day diet, an ordinary person will lose about 6.5 lb of weight in the first week. Thereafter, he will lose about 3.5 lb per week.
Note that I have ignored other mechanisms such as the body converting metabolic systems into a starvation mode. Thus, for example, basal metabolic rate(BMR) decreases as the body enters a starvation mode, so that fewer calories are burned at rest when someone starves himself. As well, on 100 calories a day, a person will not get enough protein, forcing the body to break down muscle in order to sustain itself. Less muscle means lower BMR which again diminishes the calories lost.
Hope that helps.
It depends on your metabolism and calorie expenditure. Let's say your body naturally expands 2000 calories a day. If you eat 1000 calories a day and expend 2000 calories a day you are losing 1000 calories worth of weight a day. A pound of body fat roughly requires 3500 calories to be expended. At this rate, within a week you'd create a calorie deficit of 7000 Calories, which equates to about 2 pounds lost. Good Luck
No, physical health is more about you being healthy yourself and eating right. Physical fitness is about getting fit and actually doing sports and other physical exercises.
Yes most certainly. What we put in our body will inevitably provide good or bad results for our health and fitness. Eating food that aid your body in things it lacks is a great way to fitness fast.
Well, Fitness is really important because it affects the health. When people start exercising and eating healthily, they achieve great Fitness, and decrease the chances of getting diseases or sick when they age later on.
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What are the advantages of joining a fitness center or health club ? What are the advantages of joining a fitness center or health club ?
There are a few different magazines regarding Health & Fitness. There is the Health and Sports Fitness magazine and Women's Health and Fitness. Extensive research has not provided an actual launch date for either of these magazines. There is a "Women's Health" magazine that also includes fitness articles and this magazine was launched in 2005.
Food charts that show calories and nutrition can be found on My Fitness Pal, What's Cooking America, Choose My Plate, The Black Health Zone, and Calorie Counter Charts.
This website can provide you with the information you need and more: http://www.health.com/health/ This website talks all about health and fitness. It also talks about how fitness relates to heart health.
Skill is a particular motor pattern is one component of many in health-increasing fitness.
You can find information on health and Fitness by reading any book or magazine. You can also go online and visit WebMD to find out information on health and Fitness.
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