muscle weighs more than fat true or fales

Fales.

Have you attempted to verify whether you've gained muscle by using a tape measure, a device that estimates body fat percentage, or an online calculator?

Pound of muscle burns 32 cals per day. Pound of fat burns 2 per day. Pick the one you would rather have.

It's more like 6 Cals muscle and 2 Cals fat per lb. Muscle definately better, but losing 10lbs of fat and adding 10lbs of muscle nets you 40 Cals extra metabolism a day.

Plenty of other benefits though!

No it does not weigh more, it weighs exactly the same but is denser and takes up less space!

Agree

I know your opinion on that subject and just need to poke the bear :P

Looking at those 40 cals a day is a bit short-sighted, don't you think? We humans, if lucky, have a lifespan longer than an average mayfly... 40 cals/day * 365 days * 10 years = 146.000 calories (yeah I did not factor in leap years :P). There are approx 3500 cals in 1 pound, so that means if your calories intake is (only) 40 calories a day over your expenditure in 10 years you would gain approx 42 pounds (which is the case with most humans it would seem; gaining with age, that is, not gaining exactly 42 pounds)... Drop by drop as they say...

Ooh a debate - excellent :-)

I do love the math and it's impossible to argue with your sums but in practical application there are several problems with it:

1) 40 cals is c. 1.5% to 2% of a sedentary persons intake. Nutritional labels are allowed up to 20% deviation from those published on the packet to account for variability is source material. Attaining an exact figure for intake therefore is nigh on impossible and we have to rely on those averages to balance out. 40Cals is insignificant here.

2) It's easier to eat half a cookie less per day to hit your target than spend 4 hours a week lifting to enable you to eat that target(but again, I am a lifting advocate, many other benefits, I'm just arguing your point)

3) Caloric intake relation to fat storage isn't precisely binary. There isn't a summing up that is done at the end of the day when you are sleeping, it's going on every minute in the form of the balance of insulin and glucagon in your blood stream, and so the timing of the intake would have an effect. If the extra 40 cals were eaten alone, some hours after the previous meal you likely wouldn't have enough glucose to cause an insulin release from the pancreas and thus your body isn't in storage mode and you wouldn't gain a thing (of course if you ate it on top of a big meal it would be stored, but lets ignore that inconvenient fact).

4) You body is hugely adaptive and your metabolism doesn't just adapt downwards when starved. Small uplifts occur also so perhaps your 40 extra will be adapted to.

This is fun. Over to you!

I find it difficult to believe that anyone thinks a pound of anything weighs more than a pound of anything else. When discussing weight, the "by volume" is implied. Otherwise, everything weighs the same, doesn't it?

The short answer is yes. I have never seen anyone dispute whether or not concrete is heavier than feathers, because, as mentioned, the "by volume" is obvious. People seem to get all caught up in semantics with muscle vs. fat.

LOL this. Come on people, not that hard of a concept to grasp.

A POUND OF FAT WEIGHS THE SAME AS A POUND OF MUSCLE. This is obvious and people who point it out are being snarky and pedantic.

A gallon of muscle weighs much much more than a gallon of fat.

This is what people are concerned with. If my leg is X inches around, and I lose 1 inch of fat and gain 1 inch of muscle, will I weigh more? YES.

That said, this is a pointless concern. You can, with effort, lose 50+ pounds of fat a year even at a healthy loss rate.

However, if you are not a male still in the tail end of puberty (say 23+ years old) then you will almost never be able to put on more than 5 or, if you are on the high end of the bell curve, possibly 10 pounds of muscle in a year, even if you train ridiculously hard, unless you are on some sort of hormone supplement (read: steroids).

For everyone who's worried about putting on weight because they're working out, rest assured, if you have fat to lose, the rate you will lose that will outstrip the gains you will make from muscle.

What normally makes people think "oh no, I'm working out and putting on muscle faster than I'm losing fat!" is the fact that, when you start a new exercise routine, more strenuous than you're used to, the body will hoard water in and around your muscle cells. This is to aid rebuilding of the muscle tissue, and is totally normal. The water weight may stay with you for a while, but eventually, as your body becomes accustomed to the new workout routine, it will dissipate.

Pretty sure y'all learned what mass is during grade school.
But, for the slow kids:

http://hyperphysics.phy-astr.gsu.edu/hbase/mass.html

*marks spot on desk with X*

*slams head repeatedly*

Fales.

I agree. A complete Faleshud.