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is fructose bad?

Answered on August 19, 2014
Created April 06, 2012 at 9:20 AM

is fructose inherently bad for health? please do not answer by saying that the amount in fruit is ok for it misses the point but is generally the only answer i seem to be able to get from google searches.

but what i wish to inquire about is the nature of fructose itself is it inherently disadvantages to human health for some reason outside of an artificially high dose found in commercial food products?

thanks

7dc950fc76a046048e683d2a27dced37

on April 08, 2012
at 07:42 PM

I didn't say beneficial. It's a sugar like glucose. Your body can use it. If you're really active and you don't constantly eat to excess, you probably don't need to worry about it. But it's not like it's an essential nutrient or has any other benefit aside from providing energy.

Cf938ac46500e200c97f6adbb3365f64

(324)

on April 08, 2012
at 07:05 PM

so is it beneficial to health before it is permitted to become "overwhelming to the liver"

685e3c967e63b4eacccf02628fd9a3ac

(1026)

on April 07, 2012
at 10:50 AM

Why do you bring pizza and cola into this? I'm drinking 2 litres of fruit juice, 3 plates of fruit and I don't gain any fat. Lustig says fructose is the cause of all evil. Easy for people to understand, but the theory doesn't work for me. If obesity was as simple as "cut out the fructose", Jimmy Moore would be lean as hell.

B0fe7b5a9a197cd293978150cbd9055f

(8938)

on April 07, 2012
at 05:31 AM

what about fruitarians, Bill?

1edb06ded9ccf098a4517ca4a7a34ebc

(14932)

on April 07, 2012
at 03:16 AM

It's good in that fruit may provide valuable antioxidants, vitamins, and minerals, but it's bad from a body composition stand point. I lean out as soon as I remove all fruit/sugar from my diet and replace those lost carbs with safe starch.

80890193d74240cab6dda920665bfb6c

(1528)

on April 07, 2012
at 02:38 AM

1/4 c. blueberries or 1/2 a mandarin orange are fine. Fructose is a problem when you're slurping down 32 oz. Super Gulps of soda every day. Yes, there are people who buy one of those and then drink them all afternoon, the whole afternoon, by themselves, every day. . . that's the problem, really.

1c67bc28f4e44bbb8770b86df0463df3

(6719)

on April 07, 2012
at 02:17 AM

@Korion, just because you are not drinking your pineapple and grape with your liver already full, after eating a 6000 calorie pizza, and 2 liters of cola, doesn't mean others do not need to educate themselves regarding fructose

1c67bc28f4e44bbb8770b86df0463df3

(6719)

on April 07, 2012
at 02:15 AM

Yuuuuuuuuuuuuuuuuuuuup.

1c67bc28f4e44bbb8770b86df0463df3

(6719)

on April 07, 2012
at 02:14 AM

Its poison, but like many poisons it takes a while for the effects to be realized.

7dc950fc76a046048e683d2a27dced37

on April 06, 2012
at 06:45 PM

Lots of folks can do great with fructose, especially active folks or athletes.

7dc950fc76a046048e683d2a27dced37

on April 06, 2012
at 06:42 PM

Ha! I'll see what I can do about that Dave :).

A968087cc1dd66d480749c02e4619ef4

(20436)

on April 06, 2012
at 05:26 PM

Beth is correct, yet again. (I tire of saying this.)

A968087cc1dd66d480749c02e4619ef4

(20436)

on April 06, 2012
at 05:24 PM

Yes. No. Yes. No. Wait... Maybe? AAAAAAARRRGGGHHHHH!!!!!

D2db41500a9385fafe0f50e178717e80

(193)

on April 06, 2012
at 04:30 PM

www.youtube.com/watch?v=dBnniua6-oM I recently watched Dr. Lustig's lecture and it cemented some thoughts on fructose for me. "Bad" is probably not the appropriate word for fructose. "Toxic" might be better.

B0fe7b5a9a197cd293978150cbd9055f

(8938)

on April 06, 2012
at 02:15 PM

how does that explain me doing great with pineapple and grape juice?

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6 Answers

8
7dc950fc76a046048e683d2a27dced37

on April 06, 2012
at 12:01 PM

You need to either watch Mat Lalonde's all day seminar by the OPT folks or watch Lustig's TED video. Basically fructose is not "inherently disadvantageous" to human health until it overwhelms the liver's capacity to metabolize it.

And thus, like so many things (including water), the dose makes the poison.

7dc950fc76a046048e683d2a27dced37

on April 06, 2012
at 06:42 PM

Ha! I'll see what I can do about that Dave :).

A968087cc1dd66d480749c02e4619ef4

(20436)

on April 06, 2012
at 05:26 PM

Beth is correct, yet again. (I tire of saying this.)

1c67bc28f4e44bbb8770b86df0463df3

(6719)

on April 07, 2012
at 02:15 AM

Yuuuuuuuuuuuuuuuuuuuup.

80890193d74240cab6dda920665bfb6c

(1528)

on April 07, 2012
at 02:38 AM

1/4 c. blueberries or 1/2 a mandarin orange are fine. Fructose is a problem when you're slurping down 32 oz. Super Gulps of soda every day. Yes, there are people who buy one of those and then drink them all afternoon, the whole afternoon, by themselves, every day. . . that's the problem, really.

7dc950fc76a046048e683d2a27dced37

on April 08, 2012
at 07:42 PM

I didn't say beneficial. It's a sugar like glucose. Your body can use it. If you're really active and you don't constantly eat to excess, you probably don't need to worry about it. But it's not like it's an essential nutrient or has any other benefit aside from providing energy.

Cf938ac46500e200c97f6adbb3365f64

(324)

on April 08, 2012
at 07:05 PM

so is it beneficial to health before it is permitted to become "overwhelming to the liver"

4
528b3db9d73974393d4ef162423b1a73

(100)

on April 06, 2012
at 12:28 PM

See Sugar: The Bitter Truth on you tube with Dr. Lustig; It explains the whole process of metabolizing fructose and the impact on the body. It's pretty bad when consumed in quantity; hence an orange is okay and fruit juice is not.

685e3c967e63b4eacccf02628fd9a3ac

(1026)

on April 07, 2012
at 10:50 AM

Why do you bring pizza and cola into this? I'm drinking 2 litres of fruit juice, 3 plates of fruit and I don't gain any fat. Lustig says fructose is the cause of all evil. Easy for people to understand, but the theory doesn't work for me. If obesity was as simple as "cut out the fructose", Jimmy Moore would be lean as hell.

D2db41500a9385fafe0f50e178717e80

(193)

on April 06, 2012
at 04:30 PM

www.youtube.com/watch?v=dBnniua6-oM I recently watched Dr. Lustig's lecture and it cemented some thoughts on fructose for me. "Bad" is probably not the appropriate word for fructose. "Toxic" might be better.

B0fe7b5a9a197cd293978150cbd9055f

(8938)

on April 06, 2012
at 02:15 PM

how does that explain me doing great with pineapple and grape juice?

7dc950fc76a046048e683d2a27dced37

on April 06, 2012
at 06:45 PM

Lots of folks can do great with fructose, especially active folks or athletes.

1c67bc28f4e44bbb8770b86df0463df3

(6719)

on April 07, 2012
at 02:17 AM

@Korion, just because you are not drinking your pineapple and grape with your liver already full, after eating a 6000 calorie pizza, and 2 liters of cola, doesn't mean others do not need to educate themselves regarding fructose

3
F20af1e0c77eff221d556e3db0fc5684

on April 06, 2012
at 08:58 PM

If you'd like to dig into the anti-Lustig side of the fructose debate, Alan Aragon critiques his anti-fructose arguments in the following articles (with responses by Lustig in the comments section):

  1. The bitter truth about fructose alarmism
  2. A retrospective of the fructose alarmism debate

0
1edb06ded9ccf098a4517ca4a7a34ebc

on April 07, 2012
at 03:07 AM

Seems odd but I thought I read somewhere that it was necessary for healthy sperm motility.

1edb06ded9ccf098a4517ca4a7a34ebc

(14932)

on April 07, 2012
at 03:16 AM

It's good in that fruit may provide valuable antioxidants, vitamins, and minerals, but it's bad from a body composition stand point. I lean out as soon as I remove all fruit/sugar from my diet and replace those lost carbs with safe starch.

0
1c67bc28f4e44bbb8770b86df0463df3

on April 07, 2012
at 02:21 AM

Id like to remind you of a study. It was conducted while visiting Any Mall USA, go ahead, sit down at the mall and observe. Guess what the extremely large humans typically have in common. Oh, you don't need to guess? They are carrying around big gulps and cinnabons you say??

Wake up human beings, you can't consume massive amounts of sugar in the USA WITHOUT consuming massive amounts of Fructose, its simply IMPOSSIBLE. At least 40% of all 'sugar' consumed in the usa is Fructose. Since 'sugar' is fructose-glucse, and HFCS is a little higher, if your eating sugar, its got fructose.

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