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re: Low Fat Diet Is Allegedly Wrong According to Report

Posted on 5/23/16 at 3:12 pm to
Posted by guedeaux
Member since Jan 2008
13647 posts
Posted on 5/23/16 at 3:12 pm to
quote:

simply put in the terms of weight loss and weight gain, we are referring to the first law of thermo. Simply if we consume an energy source it cant be destroyed only stored or used and that to lose weight you must burn more energy than you consume.


So, no, you can not explain it in reference to metabolism and digestion.

A calorie is a terrible measure of energy in a biological setting. The amount of "energy" in a food source does not equate to the amount of energy that the body will utilize from that source. The body digests foods differently (and each person's body will digest food differently based on your previous eating habits and exercise level, but that is too complex for this discussion).

For instance, insoluble fiber "has" calories but your body will not use any of those calories. Thus, "calories in" has 0 effect on energy use by the body. Similarly, equal "calories" of simple carbs and complex carbs will have different energy effects: simple carbs will use almost no energy to become usable energy while complex carbs require digestion (which uses energy) to become usable energy.

Also, the effects of what you eat will change the physiology of our bodies. Some foods at 100 calories will trigger your body to produce fat while an equivalent amount of calories of a different food source can instruct your body to burn fat.

These are just simple examples which convey the point that calories are not equal and the "laws of metabolic thermodynamics" are a lot more complex than the first law of thermodynamics.
This post was edited on 5/23/16 at 3:19 pm
Posted by lsu777
Lake Charles
Member since Jan 2004
32553 posts
Posted on 5/23/16 at 3:34 pm to
quote:

So, no, you can not explain it in reference to metabolism and digestion.



No i fricking can but it is useless in the terms of this discussion.

quote:

A calorie is a terrible measure of energy in a biological setting. The amount of "energy" in a food source does not equate to the amount of energy that the body will utilize from that source. The body digests foods differently (and each person's body will digest food differently based on your previous eating habits and exercise level, but that is too complex for this discussion).


Well you don't fricking say? wow what a shock. Think maybe thats why i mentioned finding ones TDEE? You won't be able to know it exactly right off the bat but you can get close enough using online formulas that you can adjust things until you find your maintenance.

quote:

For instance, insoluble fiber "has" calories but your body will not use any of those calories. Thus, "calories in" has 0 effect on energy use by the body. Similarly, equal "calories" of simple carbs and complex carbs will have different energy effects: simple carbs will use almost no energy to become usable energy while complex carbs require digestion (which uses energy) to become usable energy.



Again no shite, i touched on this when i said some types of calories take more energy to digest.

quote:

Also, the effects of what you eat will change the physiology of our bodies. Some foods at 100 calories will trigger your body to produce fat while an equivalent amount of calories of a different food source can instruct your body to burn fat.


and this is wrong. no food triggers fat storage period. its why people can lose massive amounts of weight eating twinkies and other junk. Your premise is wrong in the grand scheme of things. Now certain foods tend to trend more toward the muscle building side of things(protein) but even too much of that can and will cause fat gain. there is no magic food that causes one to gain weight or lose weight.

quote:

These are just simple examples which convey the point that calories are not equal and the "laws of metabolic thermodynamics" are a lot more complex than the first law of thermodynamics.


only if you are breaking it down into the efficiency of certain foods. in the grand scheme of calories in vs calories out the first law is all that applies.


let me guess though, you are a know it all nutritionist that sits at about 20-25% body fat that pretends to know it all when it comes to losing weight.
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