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The quoted "1-2" pounds per week (or approximately 0.5 - 1 kilo) is based on the traditional 3500 calories burned = 1 pound of fat. Now, while the exact figure of 3500 calories is somewhat open to debate, that is the rationale. 500 calories a day = 1 pound of loss per week.
The problem with crash dieting is twofold. One, the majority of the weight lost is ...
11
The original 3500 calorie theory comes from a correspondence published in 1959, by a Dr. Max Wishnofsky, where he equates it to pounds lost in observed obese patients.
It's further perpetuated by badly applied mathematics. White adipose tissue has the responsibility for energy storage in the body. This tissue is composed of anywhere from 60% to 85% lipid (...
10
Fat cells make up adipose tissues. Most fat in our body is stored in adipose tissue.
It is true that we do not lose fat cells. Fat cells would only shrink in size.
We do respiration all the time, and we need glucose to do it. The sources of glucose include: direct intake, conversion from other sugars, conversion from lipids.
If we intake small amount of ...
9
Currently I am not aware of any scientifically based recommendations for levels of healthy body fat. There are empirical observations and actuarial tables/considerations, but there hasn't been a definitive "For a 30 year old Caucasian male, 8-15% body fat is ideal for health" studies out yet.
There was a study in 2000 that was published in the American ...
9
There has been a lot of debate over the topic of artificial sweeteners and weight loss. Some studies say that artificial sweeteners do promote weight loss, while others argue the complete opposite, that artificial sweeteners cause weight gain.
Do artificial sweeteners in diet products affect weight loss?
Most diet products use artificial sweeteners ...
8
It sounds like what you're talking about is related to water retention, a specialized case of fluid retention, which causes an effect known as edema.
Edema (and thus generalized fluid retention) can be divided into two categories: generalized edema and localized edema. The first occurs all over the body, while the second occurs in only certain parts of the ...
8
The relationship between thyroid function and body weight is bidirectional and complex.
It is known for decades, if not centuries, that cretinism (only in the end of the 19th century to be associated to hypothyroidism) may be accompanied by weight gain and that thyrotoxicosis may result in weight loss. As early as in 1835 Robert J. Graves described that ...
7
Unless you are very short, your weight indicates that you are severely underweight, see here for details. If you are indeed underweight, then you should follow the advice given there:
If you are concerned about being underweight, please seek a trained healthcare provider.
The general advice that comes second to whatever your doctor's advice is, is given ...
6
Judging from your description, you're most probably doing everything correctly.
But ok, if you wanted to be absolutely sure, you really would have to precisely measure your calorie intake vs calorie expenditure (with a tool like cronometer or sth).
And as far as gaining 100 grams in 2 days goes, that's just jumping to conclusions and easily falls within ...
6
Insulin resistance and obesity are both symptoms of type 2 diabetes, although they also occur at a prediabetic stage, before the diabetes diagnostic criteria are met. Insulin resistance is highly predictive of diabetes. In the Bruneck study, less than 10% of the insulin resistant subjects had no other metabolic disorder. But still, the exact relationship ...
6
TL; DR: No, they won't impact growth if practiced within reason, and there is no damage to growth plates from injury.
The medical community and the public in general seems to regard strength training as a general voodoo practice that will "hurt you". Fortunately, this has been getting debunked soundly for over a decade now.
Despite earlier concerns ...
5
To increase weight and be healthy eat plenty of food rich in proteins (black beans, chickpeas, broccoli, potatoes, mushrooms), carbohydrates (Whole grain bread, pasta, cereals) and fat (avocado, olive oil, almonds, walnuts); include supplements and multivitamins in your diet, lift weights (don't do running or cardio) and plan your diet according to your ...
5
It's unclear, but it's generally terrible for your survival odds.
The American Institute for Cancer Research states quite bluntly that
While underweight men and women have higher overall mortality rates than people of normal weight, this association is not seen in deaths resulting from cancer. In fact, rates of death from cancer among the underweight are ...
5
The answer at the moment seems to be a clear "maybe".
There is a Cochrane review of this very topic. Combination contraceptives: effects on weight.
A Cochrane review is a study where people collect a lot of other studies on the subject, determine whether the studies were well-designed, and, if they were, review those studies and draw a conclusion from ...
5
A low birth weight baby is one that weighs less than 2500 g at birth. As growth is a progressive process, a baby may weigh less than 2500 g at birth because it is born too soon, or because it is small for its gestational age.
From here: http://www.who.int/nutrition/publications/fetomaternal/9241594004/en/
LBW infants are classified as very low birth ...
5
The short answer is no, your metabolism isn't really driven by your heart rate.
The basic definition of metabolism is that it is the process by which your body converts the food and liquid that you consume into energy to fuel the body. This can be generally divided into two components, catabolism, which is the breaking down of ingested items into energy, ...
5
Basal metabolic rate is essentially energy expenditure at rest, whereas metabolism is a general term for net anabolism and catabolism - however, often metabolism is used to refer to basal metabolism + activity energy expenditure.
There are lots of unsubstantiated product claims (i.e. scams) for weight loss. I have not found evidence for herbal teas raising ...
4
The common thought here is to lose weight you need to have more calories going out than coming in (basically, just eat less).
Your TDEE (number of calories you should eat per day to stop any weight change is around the 1600 mark
Lets look at your diet, your exercise is not worth accounting for.
It looks a little like this:
A quick analysis says that if ...
4
I want to add an answer focusing on the second part of your question
in what way is losing weight faster than this unhealthy
There's a few unhealthy things that can happen to people who lose a lot of weight quickly. It's of course subjective what rapid is. The most severe effects can be seen in people on very low calorie diets (VLCD).
Gallstones ...
4
Consider this ideal weight calculator for example. For a 25 yo male with a height of 9'6'' (289 cm), the optimal weight should be around 342 - 462 pounds (155kg - 210kg).
By the way, the tallest man ever was only 8'11'' (272cm) tall (see here).
You might want to read about BMI
4
BMI is absolutely NOT a good indicator of health. At least not on its own.
It is made up of two measurements only: height and weight. Height is a stable property, and a person cannot do anything about it (nothing physiological and permanent, at any rate). Body weight, however, is comprised of different types of tissues in the body, most notably fat and ...
3
People tend to gain weight around the abdomen and hips because we generally have many more millions out fat cells in those areas and very few in the hands. It is possible to gain weight in your hands, but it is not possible to target weight gain in only your hands. Weight gain and weight loss happens systemically; that is, that your entire body gains and ...
3
It is, at least, overly simplified.
The average amount of water in adipose tissue is 13%. In addition to that, it also contains approx. 3% protein. The remainder is fat.
Lard, which should have a similar calorific value as human fat, provides ~8980 calories per kg.
To simplify this calculation we assume that 1 kg of protein provides 4000 calories and 1 kg ...
3
Body Mass Index, or BMI, is not really a reliable indicator. It was based on statistics developed almost 200 years ago, and ignores such things as high muscle content (Muscle weighs more than fat), strong bones and also where and what type the body stores fat as.
Visceral fat is much more dangerous health wise than subcutaneous fat, and BMI makes no ...
3
Assuming that you are a person in normal good health who wants to lose weight, the best approach for you is to either decrease your intake, exercise to offset some of your intake, or both.
You say you noticed the weight gain when all your sports ended. That does tell you something. Eating to maintain energy and strength during sports is physiological. ...
3
There hasn't been any conclusive clinical studies that have found that vibrating belts, or any vibration exercise for that matter, can definitely help promote weight loss. Sadly, most studies have been done on full body vibration training, so some of the references I point to may not be specifically about vibration belts, but the mechanisms of each method ...
3
BMI is calculated from this formula, only looking at the height and weight of a person.
However, muscle is bulkier than fat, so two people could have the same BMI but be at different health levels (for example, if people A and B are the same height and weight then they will have the same BMI. However, person A could be mostly muscle and in good shape they ...
3
You lose weight when you consume less calories than you burn. You burn calories even when you do not exercise, because your body needs calories to maintain vital functions of the heart, kidneys, brain, to digest food, produce heat, etc.
So, even if you lie in bed all day and consume less calories than you burn, you will lose weight.
If you, as a sedentary ...
3
If you build this up gradually, then you're more likely to succeed, although it may still be above the limit that your body can tolerate in the long term. In general, exercise stresses the body, but the body then responds to that by making itself stronger not just to meet the extra demand but to actually exceed this (provided the exercise routine isn't too ...
3
The majority of people who are overweight have difficulty losing weight. If they didn't there wouldn't be an obesity crisis in the western world.
OBESITY CRISIS: TWO BILLION PEOPLE NOW OVERWEIGHT AND U.S. IS ONE OF THE FATTEST NATIONS ON EARTH source
Doing blood tests on 2 billion people who can't lose weight is almost a complete waste of money and ...
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