akork

"So, what your saying, is if people eat a 0 fat diet, and go THOUSANDS over their daily caloric requirement, their body will store 0 fat, and they won't gain any body fat? Unlikely" No if someone ate a zero fat diet the body could undergo lipogenesis which is an alternate metabolic pathway in order to produce fat however…

I am going to try to restate this clearly. You tell me where you think I am wrong. First, macronutrients go to required body functions and maintenance of tissues then they go to thermal processes and energy Energy in this case is the creation and utilization of ATP. Carbohydrates in excess are stored as polysaccharide…

Oops. You are correct about catabolism, I misspoke there and have removed that comment as it is incorrect. From your picture you are much more muscular than I am. Does that mean you are correct? I am confused by that logic. Simple question. Show me biochemically how you go from protein, to glucose, to glycogen to FAT. You…

Wait a second...are you calling glycogen stored in tissue "fat"? If so I think I see where the confusion lies. Glycogen is a polysaccharide (carbohydrate) while fat is a long-chain hydrocarbon stored as triglycerides branching off of glycerol in the form of lipids.

No, fat is ingested and retained in cases where the energy requirements are met or exceeded by your caloric intake. The other macronutrients are not "turned" into fat.

catabolic is the breaking down and anabolic is the building up Jdine was correct I was mistaken

Lol if you want to get technical about it, I did mention that I was a biochemist right? Everything you say here is correct, however I would like to point out none of it traces a path from protein to fat. If you want something else to flip out over how about this one. Carbohydrates don't "turn" into fat either.

Protein converted to glucose. Yeah. Protein converted to glycogen. Yeah. I never contested that. Glycogen converted to fat? Glucose converted to fat? Show me those pathways.

Heh no worries man. I realize that this is just the easier way of saying things...you eat to much protein it "turns" into fat. I actually have no problem with that. Really for 99% of people this is just a nitpicky semantics game. The issue I have is with people thinking it actually means that it literally TURNS into fat is…

No seriously, zero of it will be "broken down and turned into fat" because your body just doesn't do that catabolic process. Your body will utilize carbs and protein above fat for energy and if you eat to many calories your body will end up with excess fat and store that fat, but it doesnt convert protein to fat. Now I…

No...it wouldnt As a biochemist I can tell you that this is incorrect. The body has limited catabolic and metabolic pathways which are limiting for the way in which macronutrients such as aminoacids, carbohydrates and lipids can be used either for maintenance of bodily function of breakdown for the production of ATP for…

I should ammend my comment. You can actually trace a biochemical pathway within the various metabolic and catabolic systems of the human body to go from protein to fat but it would be so energetically unfavorable that you wouldn't end up getting any benefit out of doing so (ie it would cost more energy to do the conversion…

Protein can be used as an energetic source via pyruvate metabolism in the citric acid cycle so that you will burn that and retain fat from fat that you have eaten but biochemically there is no way for the human body to convert amino acids to fatty acid chains. In otherwords if you eat to much protein and are above your…

"Excess protein will be converted to fat." No it wont

"if you eat to much protein, you could actually gain weight" If you eat to much of anything you can gain weight. Protein is about 4 calories per gram, carbs 4 calories per gram, fat 9 calories per gram. Aim for some sort of breakdown of Carb-Fat-Protein like 50-30-20 but don't sweat it if you don't hit the mark. If your…

The bloating and stomach irritation sound like it might be Celiac which is a gluten intolerance. You could either try to get tested for this or alternatively try eating gluten free for a while and see if the symptoms go away.

<shrug> They test on rodents because they can't test directly on humans for ethical and cost reasons, the best you can hope for really is an epidemiology study which relies on statistics and large sample sizes to look for coorelations between behaviors of large populations of humans and health-risk factors. That said I'd…

"CARBONATED BEVERAGES ARE POISON " Thats a huuuuge overstatement.

"Any dehydrating effects of caffeine are more than countered by the liquid it's in." It isn't dehydrating because the amount of caffeine requires more water than is provided in the soda it is dehydrating because when you drink a cup of soda you will tend to NOT drink a cup of water. As someone who spent a good chunk of…

"do you think the government isn't biased." No I do not believe the scientific community is biased. The .gov link I provided is pubmed, the free online collection of scientific journals. The goverment via the National Institute of Health provides the capital to host the articles but all the articles on that site are from…

I wonder if they make ones with margarine for the calorie conscious.

I really don't understand how posting an article on the internet makes the person posting it somehow more believable. I've gone through about 10 of these soy-milk is bad for you articles and absolutely none of them have quoted a single study on soy milk in humans. They are all opinion pieces. Now those people are certainly…

None of those are epidemioligical studies carried out in a scientific manner PeachyKeene...don't beleive everything you read on the internet. I mean look at your sources, all of them are .coms About.com..number of scientific studies quoted: zero Snopes.com, a site dedicated to rumors Optimum choices: yet another .com There…

Honestly I don't see any coorelatives in epidemiological journals between "casein" and cancer either other than one discredited study by a guy named Cambell, where did you get that statistic? Actually there are more articles suggesting that the opposite is true and that casein protein is antimutagenic, however I would…

There is no connection between soy milk and breast cancer, don't worry about that.

Not sure what you mean by "to much protein." If you have a daily caloric intake goal and you are meeting that goal then there is no problem. If you are exceeding that and think you are getting more than enough protein by all means cut back. Any protein past what your body needs for maintenance will just be metabolized for…

You definately won't gain weight doing P90x lean and eating 1800 calories a day. Will you lose weight as fast as if you ate 1200 calories a day? Well no, you wouldn't...however consider that at 1200 calories a day trying to exercise as hard as that you will probably end up burning yourself out become lethargic and quit the…

My only issue with things like Snickers Bars is that chocolate doesn't tend to stay particularlly solid on warm days. We usually take some Luna bars or other similar energy bars that don't melt.

Its a 13 day trip and we are going about 170 miles. We usually start our mornings with 1 cup of granola each mixed with dehydrated milk and protein powder. For snacks we do dried fruit, almonds, jerky and hard candies which we find help with steep hills (sucking on something sweet just seems to make the elevation seem…

Yeah dried fruit nuts and jerky are definately on my list. I've found that nothing quite beats almonds for ease of carrying, taste and calories to weight. Beef Jerky may not have that many calories but it is super satisfying during a hike and the extra protein is a good thing. Dried fruit is decent calories and the sugar…