3

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Different types of fat?

Answered on August 19, 2014
Created December 01, 2011 at 11:48 AM

I follow a Paleo diet to lose weight. I get the basic body function to lose weight via reducing carbs, keeping insulin levels under control and allowing fat cells to release fat. I am a little confused over the mechanism to get fat in the first place though. I believe it's to do with liver function and lipogenesis, essentially turning carbs into fat which accumulates in the body. So to my question: why do these fats accumulate, while dietary good fats abundant in paleo lifestyle don't?

32f5749fa6cf7adbeb0b0b031ba82b46

(41757)

on December 01, 2011
at 03:45 PM

I don't think Taubes is right when it comes to obesity. He's tried to blame all our ills on carbohydrate, when the problem is excess carbohydrate & excess energy.

7d64d3988de1b0e493aacf37843c5596

(2861)

on December 01, 2011
at 02:34 PM

People lose weight on Twinkie Diets and Potato Diets. Personal weight loss anecdotes often don’t really tell us much about obesity, other than losing weight can be very hard (Jimmy Moore has been low carb for years but has never been his goal weight his entire adult life.) The idea that insulin inhibits lipolysis so therefore obesity is the result of too much insulin is a very simplified and myopic view of the entire symphony of biochemical reactions that go on in the human body, not to mention the brain.

1820e2a8a435da2339593485379bb50d

(333)

on December 01, 2011
at 02:15 PM

It's true you can burn fat eating carbs - but you just wont burn as much of it as when you are eating low carb. If weight loss is your goal, then eating loads of carbs is sabotaging yourself, because you can eat more protein and fat than you would carbs and still lose weight. For me personally I wont lose weight eating carbs unless I exercise heavily (marathon training) but now Im low carb Im dropping weight every day, and yes Im exercising, but not for 4 hours at a time like I had to to drop weight eating carbs.

7d64d3988de1b0e493aacf37843c5596

(2861)

on December 01, 2011
at 02:10 PM

I believe lipogenesis is actually the creation of new fat tissue. I believe most fat gain in humans is via increasing the size of fat cells. In a general sense, fat is stored when there is a positive energy balance (more food than you burn off). The main advantage to Paleo is that people tend to eat less calories than they would eating crap-in-a-box. The higher protein and/or fat is more satiating for some people, and real food is more satiating for some people as well. The different types of dietary fats affect overall health, but it is not clear how much they impact fat gain or loss.

7dc950fc76a046048e683d2a27dced37

on December 01, 2011
at 01:52 PM

This is the $64 million question. Be careful lest you be sucked into the carb-insulin vs food reward hypotheses battle ;). People have theories like the two I just mentioned, but at the end of the day, the real question is whether the diet you choose enables you to eat in a way to keep your weight homeostatic mechanism functional. Paleo seems to do that, a Western diet not so much (for many anyways). The devil is in the details which are still being hammered out.

32f5749fa6cf7adbeb0b0b031ba82b46

(41757)

on December 01, 2011
at 12:39 PM

I disagree that you cannot burn fat stores on a high carb diet. Sure after a high carb meal your body enters a state where all fat and carb are removed from the bloodstream (that's normal, our blood isn't designed to store our energy sources). As soon as you're back to normal blood glucose, you start mobilizing fat stores for energy.

6cdc6b1e75690cfcc4804a6c9eaa910a

(2171)

on December 01, 2011
at 12:29 PM

Thanks NicoleRM. Appreciate the answer.

1820e2a8a435da2339593485379bb50d

(333)

on December 01, 2011
at 12:27 PM

I also meant to say that fat and protein do not activate insulin, so dont cause your body to stockpile fat - so eating them can keep your body in a state of ketosis, meaning your burning fat most of the time.

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2 Answers

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1820e2a8a435da2339593485379bb50d

on December 01, 2011
at 12:25 PM

Eating excessive amounts of carbs cause your insulin levels to spike, which signals your body to store as much fat as it can - including the carbs that you eat. You are therefore never really burning your fat stores when you eat a high carb diet.

High levels of carbs, especially processed ones adversely affect your body in a wide range of other ways - mostly hormonal, and all detrimental to weight loss.

If you want to understand more in depth I would highly recommend reading Gary Taubes' book 'Why we get fat' and another by Maria Emmerich called 'Secrets to a healthy metabolism' - they both cemented for me the correct way to eat for health and weight loss.

Good luck!

7d64d3988de1b0e493aacf37843c5596

(2861)

on December 01, 2011
at 02:34 PM

People lose weight on Twinkie Diets and Potato Diets. Personal weight loss anecdotes often don’t really tell us much about obesity, other than losing weight can be very hard (Jimmy Moore has been low carb for years but has never been his goal weight his entire adult life.) The idea that insulin inhibits lipolysis so therefore obesity is the result of too much insulin is a very simplified and myopic view of the entire symphony of biochemical reactions that go on in the human body, not to mention the brain.

6cdc6b1e75690cfcc4804a6c9eaa910a

(2171)

on December 01, 2011
at 12:29 PM

Thanks NicoleRM. Appreciate the answer.

32f5749fa6cf7adbeb0b0b031ba82b46

(41757)

on December 01, 2011
at 03:45 PM

I don't think Taubes is right when it comes to obesity. He's tried to blame all our ills on carbohydrate, when the problem is excess carbohydrate & excess energy.

32f5749fa6cf7adbeb0b0b031ba82b46

(41757)

on December 01, 2011
at 12:39 PM

I disagree that you cannot burn fat stores on a high carb diet. Sure after a high carb meal your body enters a state where all fat and carb are removed from the bloodstream (that's normal, our blood isn't designed to store our energy sources). As soon as you're back to normal blood glucose, you start mobilizing fat stores for energy.

1820e2a8a435da2339593485379bb50d

(333)

on December 01, 2011
at 02:15 PM

It's true you can burn fat eating carbs - but you just wont burn as much of it as when you are eating low carb. If weight loss is your goal, then eating loads of carbs is sabotaging yourself, because you can eat more protein and fat than you would carbs and still lose weight. For me personally I wont lose weight eating carbs unless I exercise heavily (marathon training) but now Im low carb Im dropping weight every day, and yes Im exercising, but not for 4 hours at a time like I had to to drop weight eating carbs.

1820e2a8a435da2339593485379bb50d

(333)

on December 01, 2011
at 12:27 PM

I also meant to say that fat and protein do not activate insulin, so dont cause your body to stockpile fat - so eating them can keep your body in a state of ketosis, meaning your burning fat most of the time.

1
559a1bf85bfe38a0fbbf56377c7278b4

on December 01, 2011
at 12:33 PM

I can describe my own experience of losing weight and keeping insulin/blood sugar under control.

If you eat more fat than you use (a) for structural purposes (e.g. building cell walls) and (b) for energy, then the excess will almost certainly be stored as fat.

Unlike carbs, the dietary good fats don't push up insulin, so they are a safer source of energy for me than carbs.

Excess protein will be converted into glucose and stored as glycogen and, when the glycogen stores are full, as fat.

So, even good dietary fats and protein will make me fat if I eat too much of them. The way I know if I am getting too much dietary fat is that I stop losing weight, even though carbs are low and protein is moderate.

I understand the question of fatty liver is quite complex and involves other things, like polyunsaturated fatty acids and fructose, as well as excess glucose.

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