Questions tagged [metabolism]

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19
votes
4answers
15k views

How does our body dispose of excess calories (physiologically speaking)?

My question is whether all the excess energy that is left every day always go to fat, or can it be wasted or disposed of somehow? (for example by not digesting everything to 100 percent?) Now, I am ...
17
votes
6answers
186k views

How long should I wait to exercise after eating?

How long after eating should I wait to exercise, or does it not matter? I am mainly talking about cardio, not weightlifting. I am trying to lose weight, not gain it, and in large amounts.
15
votes
3answers
848 views

Keeping my metabolism high

I am looking for some diatary ways to keep my metabolism high, especially between meals. What kinds of foods or supliments can help keep your body processing long after you've consumed them? Ideally ...
13
votes
3answers
859 views

Naturally increasing my Metabolism

I see all kinds of commercials on the TV about how to lose X amount of weight in Y amount of time, and how this old guy looks surprisingly like this younger guy, even though he's not supposed to. My ...
12
votes
6answers
16k views

Are there any advantages of being an ectomorph?

It can be on fitness, sports or just plain daily life. Everything I hear and know about ectomorphs is: They struggle to gain weight (be it fat or muscle) and they tend to lose the gains easily. They ...
12
votes
5answers
11k views

Is it true that you can eat anything you want within 15 minutes of working out without putting on weight?

A friend of mine told me that you can pretty much eat whatever you want within about 15 minutes of a big exercise session without putting on weight. I can't really understand the science behind this. ...
11
votes
4answers
12k views

How to Increase height naturally? Are those ads gimmicks?

I'm 5'6, weigh 137, male and close to be 24 soon. I am not happy with my height. I love sports, basketball, soccer, and others. Being this short have some influence on sport activities I ...
10
votes
2answers
4k views

Does exercise REALLY increase the basal metabolism rate for any significant length of time after the exercise is over?

I am new to this site, but have read several questions and answers here that are related to this question and have found different contradictory answers. Some say that the only effect is that a ...
10
votes
3answers
1k views

Can weight lost be sustained through exercise influenced metabolism changes?

Background: This question was prompted by a few comments from user:michael Reading through a recent New York Times article related to the subject prompted me to prove further into the topic of ...
9
votes
3answers
27k views

How long should I wait with eating after an exercise?

I hear sometimes that after running you should wait with eating for 30 or 40 minutes (may be the metabolism is still in fat burning mode?). What is the reason for this advice? How long exactly should ...
8
votes
4answers
15k views

What is the best way to bring one's metabolism out of starvation mode following a diet?

A friend of mine has obviously brought her metabolism into starvation mode by performing strict low-calorie diets (without any exercise) for over ten years. This has resulted in a yo-yo effect where ...
8
votes
1answer
39k views

transitioning into and out of ketosis [closed]

About eight years ago, I lost a significant amount of weight using Dr Atkins' ketogenic diet; unfortunately, I gradually let my food intake slide afterwards. I since gained some weight back, but I'm ...
8
votes
4answers
2k views

How does one train for sports when the three metabolic pathways interact?

As I understand it, there are three mechanisms by which ATP is replenished: For intense 10-12 second efforts, ADP is directly converted back to ATP using creatine phosphate For efforts up to a ...
8
votes
1answer
1k views

Metabolic Equations for Anaerobic Exercise?

I know several metabolic equations for estimating VO2 (and therefore calories burned) for steady state exercise, but how is VO2 and caloric expenditure estimated through exercises like power lifting ...
7
votes
3answers
3k views

Unexplained muscle mass loss

Recently my gym bought a fat analyzer (InBody scanner). I have used it twice now. I'm a bit perplexed and disappointed by the results. A little back story: I'm 39. I've been maintaining the same ...
6
votes
3answers
15k views

Why did I not gain weight when having 4000 calories a day?

I'm about 6ft high and weigh 175 pound, age 26. For the last few years, I have lived a fairly sedentary lifestyle, easily consuming about 4000 calories per day. What I would like to know is why if ...
6
votes
2answers
297 views

Advice for improving metabolism burn: how do we keep it in high gear?

According to Mayo Clinic about 60% - 75% of the calories burned are non-exercise related. It seems each person's metabolism adjusts to ensure proper support of the body with the focus on efficient ...
6
votes
4answers
4k views

Is a drastic calorie reduction harmful? [closed]

For a long time I was consuming 4000 calories a day. This was between soda and various "junk foods". I was surprised to find my protein, carb and fat levels were pretty close to what they should have ...
5
votes
2answers
594 views

Does working a diverse set of muscles increase metabolism?

By supplementing my running with working additional muscle groups, can I increase my metabolism? I'm thinking of doing about 30 situps 30 pushups before running and gradually building up. I might add ...
5
votes
4answers
1k views

Is long distance running harmful for women?

I was considering taking part in marathon, but recently I came across this article. To summarize, the author claims that long distance running, and actually any cardio done for hours at or above 65 ...
4
votes
2answers
258 views

Diet to loose excess fat that includes raising the metabolism in the morning and fasting until lunch (2pm)?

I have a bodybuilder friend who is also a military fitness instructor. Since I am mostly sedentary (in front of a PC) kind of person and quite overloaded with work, I have obviously gained weight. I ...
4
votes
2answers
1k views

Am I in “starvation mode”?

I am male, 48, 6'2" and 230 lbs. I workout 4 to 5 days per week, doing a wide variety of sports (running, cross training, TRX, skiing, lifting weights etc). I was assessed last year and my ...
4
votes
2answers
10k views

What does it mean to “boost your metabolism”?

I hear this term quite a lot - "if you exercise it will boost your metabolism". The implication generally being that if you do some exercise not only will the exercise burn some calories, but you will ...
4
votes
1answer
3k views

Weight training advice for ectomorph female?

I am pretty active,but nursing injuries now. I haven't started lifting heavy yet. I have come across many sites that suggest ectomorphs to train with compound moves only while a few others opine that ...
4
votes
2answers
359 views

Could cyclic eating help us to keep our metabolism up?

Insulin oscillations with period of 3 - 6 minutes are believed to be important for insulin sensitivity by preventing downregulation of insulin receptors. Reading this I was wondering, if the body ...
3
votes
2answers
203 views

How to prevent a plateau when you are in a caloric deficit?

I'm M, 21, 5'6''. Some months ago, I tried losing weight without any resistance training i.e through dieting alone (by creating a deficit of ~ 1500 calories everyday). My weight was 85Kg and I dropped ...
3
votes
3answers
3k views

Does food temperature affect absorption time and efficiency?

If I consume equal amounts of (say) mango, one in frozen chunks, the other at room temperature, will I digest them at different speeds? That is, will they have a different impact on my blood sugar ...
3
votes
1answer
772 views

Does it matter when during the day carb intake occurs?

I have heard from multiple sources that "no carbs in the evening" is supposed to be a good way of decreasing the fat buildup and facilitating weight loss. Now while I am aware that none of these ...
3
votes
3answers
1k views

Is it possible for an Ectomorphic to build bulky muscle like the Professional body builders ?

Is it possible for an Ectomorphic to build bulky muscle like the Professional body builders ? Will they be able to build body and compete in body building competitions? Should an ectomorph ...
3
votes
2answers
85 views

Effect of exercise on overall heart rate

I recently learned about Kleiber's law describing how metabolic rate is related to an animal's mass. One way this law gets (over)simplified is by saying that all animals have the same number of ...
3
votes
1answer
197 views

How much cardio is advisable for an overweight person who is new to bodybuilding?

I am 26 years old and my height is 166 centimetre. I used to weigh about 184 pounds two years ago, as a result of which I joined a gym and started working out under the supervision of a trainer. My ...
3
votes
2answers
410 views

Does aerobic exercise training change resting metabolism?

My question is basically whether aerobic exercise training makes one more effective at utilizing a greater proportion of FFAs (free fatty acids) as opposed to glucose under resting conditions. So this ...
3
votes
1answer
137 views

Physical Activity and METS

Suppose a person performs 3 horus of cardio at 9 METS. To obtain the same metabolic changes without exercise, would this require that the person wait 27 hours? Assume that the person's daily activity ...
3
votes
1answer
156 views

Metabolic Equivalancies

From what I've read, the MET for moderate intensity activities is between 3 and 6, walking 3 mph being 3.3 for example. It seems to me that this number must vary from person to person. Is there a ...
3
votes
2answers
1k views

is the so called “afterburn workout” good for someone with overweight

I weight 242 lbs (110kg) with 5' 9" (182cm). I want to lose weight. My workout the last month was to walk an hour every other day. Right now walk doesn't make me feel tired, so I run. But I can only ...
2
votes
3answers
242 views

why do we need more rest when lifting heavy?

in relation to this question below: possible paths to increase bench press from 140kg (308 lbs) to 160 kg (352 lbs) - for 1o reps rest time which is around 48-72 hours at the level you are, or ...
2
votes
1answer
132 views

What is the name of the test I had on my first day at gym?

I had been diagnosed diabetic recently and hence decided to go to gym for the first time. The gentleman there gave me a test that I suppose is checking my fitness or metabolism and it was basically ...
2
votes
2answers
172 views

Is calories in vs. calories out 100% the same for every individual?

It's often touted that body mass is all calories in and out -- that nothing else has any play besides calories. What about things like stimulants with calorie surplus? Testosterone boosters? Different ...
2
votes
1answer
908 views

Is it true that the body gets used to diet and exercise after a while and stops responding?

I am currently reading a book called "The Body Sculpting Bible for Men" by James Villepigue and Hugo Rivera. In it the author claims that when you start dieting your body receives a shock from the ...
2
votes
1answer
200 views

The truth about calories from alcohol

For the past few weeks, I have been carefully recording my food and drink intake, together with my exercise. I would say that my net calorie intake is accurate to within 100 calories either way. I ...
2
votes
1answer
4k views

How to distinguish acetone and ammonia odor after running?

I heard that burning fat leads to acetone odor while burning muscles leads to ammonia smell. Is this true? How can I distinguish both smells as they are very similar?
2
votes
2answers
330 views

Good fitness strategies for an ectomorph

I've recently joined a local gym to try and supplement my martial arts training, and as a result I have been getting a lot more exercise recently (I'm still in the over-enthusiastic early phase where ...
2
votes
1answer
1k views

Clenbuterol dangers? [closed]

Ive recently looked into the bronchial dilator clenbuterol for fat loss and body fat reduction aid. I'm wondering what if any comments anyone here had about this, mainly the dangers of it and long ...
2
votes
0answers
59 views

According to whom breakfast is healthy? [closed]

I've certainly been taught breakfast is the most important meal of the day because while you sleep it's the longest period of time the body goes without food. Someone told me today that there is no ...
1
vote
2answers
2k views

How to maximize mitochondrial biogenesis?

The question says it all: How can I increase the mitochondrial biogenesis? (The creation of new mitochondria) All sources I found say, that it is increased if there's enough demand. So what kind of ...
1
vote
1answer
121 views

Does it become harder to lose weight as you age? [closed]

In general, the average person will experience worsening metabolism with age. What else takes place over time that makes it harder to lose weight at 40 versus say 20?
1
vote
1answer
141 views

High metabolism problems

I fluctuate in my weight very regularly. I can gain 5 lbs in 1-2 days, no problem. But if I don't workout and or eat the same amount as I did the day before, the 5 lbs magically disappears. It's ...
1
vote
1answer
558 views

Isotonic water in the morning?

I am building mass and drinking about 3-5 liters water daily. I sweat much so I lose much minerals particularly when doing any sport. If I drink tap water during sport, I start to feel very weak. ...
1
vote
2answers
122 views

Is “the truth about metabolic damage” fear mongering?

T-Nation has an article about metabolic damage on their site, shown here: http://www.t-nation.com/diet-fat-loss/truth-about-metabolic-damage In short it basically talks how your weight loss progress ...
1
vote
1answer
75 views

weight loss metabolism boost and muscle gain

It's been 2 years since I worked out I've gained a significant amount of weight, approximately 60 pounds I weight 240 I'm 19, 5'9. The last time I worked out I max benched 2 plates and a 25, now I'm ...