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highplainsdem

(49,041 posts)
Mon Apr 2, 2012, 12:01 AM Apr 2012

What Eating Too Much Sugar Does to Your Brain

http://www.forbes.com/sites/daviddisalvo/2012/04/01/what-eating-too-much-sugar-does-to-your-brain/

The key word in all of the stats is “added.” While a healthy diet would contain a significant amount of naturally occurring sugar (in fruits and grains, for example), the problem is that we’re chronically consuming much more added sugar in processed foods. That’s an important clarification because our brains need sugar every day to function. Brain cells require two times the energy needed by all the other cells in the body; roughly 10% of our total daily energy requirements. This energy is derived from glucose (blood sugar), the gasoline of our brains. Sugar is not the brain’s enemy — added sugar is.

Research indicates that a diet high in added sugar reduces the production of a brain chemical known as brain-derived neurotrophic factor (BDNF). Without BDNF, our brains can’t form new memories and we can’t learn (or remember) much of anything. Levels of BDNF are particularly low in people with an impaired glucose metabolism–diabetics and pre-diabetics–and as the amount of BDNF decreases, sugar metabolism worsens.

In other words, chronically eating added sugar reduces BDNF, and then the lowered levels of the brain chemical begin contributing to insulin resistance, which leads to type 2 diabetes, which eventually leads to a host of other health problems. Once that happens, your brain and body are in a destructive cycle that’s difficult if not impossible to reverse.

Research has also linked low BDNF levels to depression and dementia. It’s possible that low BDNF may turn out to be the smoking gun in these and other diseases, like Alzheimer’s, that tend to appear in clusters in epidemiological studies. More research is being conducted on this subject, but what seems clear in any case is that a reduced level of BDNF is bad news for our brains, and chronic sugar consumption is one of the worst inhibitory culprits.

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41 replies = new reply since forum marked as read
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What Eating Too Much Sugar Does to Your Brain (Original Post) highplainsdem Apr 2012 OP
K&R !!! n/t RKP5637 Apr 2012 #1
K&R burrowowl Apr 2012 #2
60 Minutes did a piece on this tonight. Marie Marie Apr 2012 #3
excellent handmade34 Apr 2012 #4
Define "too much." aquart Apr 2012 #5
The researchers interviewed on 60 Minutes defined "too much" as Fuddnik Apr 2012 #6
How come women get stiffed???? aquart Apr 2012 #21
So that's about 8 teaspoons max for women mainer Apr 2012 #36
Explains a lot cyglet Apr 2012 #7
This is important. freshwest Apr 2012 #8
The target audience won't remember reading this. TahitiNut Apr 2012 #9
I should be dead then. Archae Apr 2012 #10
same here, Archae Skittles Apr 2012 #11
Sugar has been murder on my teeth, that is a fact. Archae Apr 2012 #12
Sugar is a toxin MattBaggins Apr 2012 #17
No, it's a necessity. That's why we have tastebuds for sweet. aquart Apr 2012 #22
It's still a toxin MattBaggins Apr 2012 #25
So is water. Archae Apr 2012 #28
You will be. geckosfeet Apr 2012 #14
To clarify: Brain requires glucose, not necessarily dietary glucose. BadgerKid Apr 2012 #13
+1000 for low carb diets. No carb is extreme and extremely difficult. geckosfeet Apr 2012 #15
I cut out sugar and white flour Marrah_G Apr 2012 #19
"Added" sugar is a bogus concept mathematic Apr 2012 #16
Wonder whether the increase in autism is correlated with the increase in sugar consumption FarCenter Apr 2012 #18
When did this happen? YellowRubberDuckie Apr 2012 #31
Some references FarCenter Apr 2012 #33
Thank you for the info, but for future reference... YellowRubberDuckie Apr 2012 #38
It depends on the topic -- In this case it has 124 references, mostl to peer reviewed journal papers FarCenter Apr 2012 #41
Mmmm Donuts, what were you saying? nt Javaman Apr 2012 #20
I guess I am doing something right. RebelOne Apr 2012 #23
The sugar substitute is worse for you than sugar. YellowRubberDuckie Apr 2012 #32
I gave up sugar in June, 2011 and lost 63 lbs. n/t Holly_Hobby Apr 2012 #24
Great, loosing 63 lbs. That is a whole bunch. Do you feel better? Tripod Apr 2012 #30
Does this mean Easter candy is out this year? Shankapotomus Apr 2012 #26
Everything in moderation. HappyMe Apr 2012 #27
This makes sense to me. Tripod Apr 2012 #29
Oh well. I've been cutting back on fast and processed food, red meat, etc.-- TwilightGardener Apr 2012 #34
Exercise has been shown to increase BDNF... drokhole Apr 2012 #35
Starch is depolymerized to glucose in the small intestine, so it is like eating corn syrup FarCenter Apr 2012 #37
What eating too much sugar does to your butt snooper2 Apr 2012 #39
When people ate at home, and ate scratch-made foods, added sugar was not much of a problem SoCalDem Apr 2012 #40

handmade34

(22,758 posts)
4. excellent
Mon Apr 2, 2012, 12:19 AM
Apr 2012

I suffered severe cravings for my entire life... gave up all added sugars last December and the cravings are gone!! It is very difficult but wonderful when done...

Fuddnik

(8,846 posts)
6. The researchers interviewed on 60 Minutes defined "too much" as
Mon Apr 2, 2012, 12:38 AM
Apr 2012

More than 200 calories per day, from added sugar, for men, and 100 per day for women.

Archae

(46,347 posts)
12. Sugar has been murder on my teeth, that is a fact.
Mon Apr 2, 2012, 01:47 AM
Apr 2012

But to call sugar a "toxin?"

And the 60 Minutes clown lumped in honey and anything else that's sweet as well.

If I overdo it, I'll feel it. It'll start with a gutache.

But 200 calories limit a day? I'd like to see some peer review on this "research."

aquart

(69,014 posts)
22. No, it's a necessity. That's why we have tastebuds for sweet.
Mon Apr 2, 2012, 03:37 PM
Apr 2012

That's why we have mechanisms to process it. BECAUSE WE NEED IT.

BadgerKid

(4,555 posts)
13. To clarify: Brain requires glucose, not necessarily dietary glucose.
Mon Apr 2, 2012, 07:47 AM
Apr 2012

But dietary glucose can surely help to reduce "brain fog," which typically will go away after a few days eating a no-carb or low-carb diet. The body is supposed to be able to synthesize glucose from food (or from the body itself if you're undereating calories).

geckosfeet

(9,644 posts)
15. +1000 for low carb diets. No carb is extreme and extremely difficult.
Mon Apr 2, 2012, 08:08 AM
Apr 2012

Almost all foods have some carbs in them. Even if they are non-digestable.

Marrah_G

(28,581 posts)
19. I cut out sugar and white flour
Mon Apr 2, 2012, 09:31 AM
Apr 2012

I've lost 35 pounds and started feeling great. I fell off the wagon and stopped paying as much attention and although I haven't gained anything back, I do notice a marked difference in mood, fatigue and mental sharpness when I don't watch what I eat.

mathematic

(1,440 posts)
16. "Added" sugar is a bogus concept
Mon Apr 2, 2012, 09:06 AM
Apr 2012

The author asserts that "added" is the important part of the increased sugar consumption that results in harm yet provides no evidence for that claim.

He links to two research studies that mention sugar. Neither addresses the idea that added sugar is worse than naturally occurring sugar. Both studies are on rats fed high sucrose diets. The first study feeds rats a high sugar & high saturated fat diet (to simulate typical western diets) using a low fat "healthy"-type diet as a control. The second study feeds rats a diet of 50%(!!) sugar using a high cornstarch diet as a control.

The linked article is typical science-writing quackery where a couple of pretty narrow studies are misinterpreted and erroneously generalized to make some sort of unjustified or incorrect conclusion.

 

FarCenter

(19,429 posts)
18. Wonder whether the increase in autism is correlated with the increase in sugar consumption
Mon Apr 2, 2012, 09:30 AM
Apr 2012

Diabetes is a known prenatal risk factor for autism.

The feeding of juice to infants and preschoolers is a bad practice. They are getting fructose instead of lactose.

YellowRubberDuckie

(19,736 posts)
31. When did this happen?
Tue Apr 3, 2012, 07:32 AM
Apr 2012

I have heard of nothing regarding a risk factor for Autism. Last I checked there is no factual evidence for what causes autism or what autism even is to do anything about it.
And as many people I know who have kids with autism and Asperger's I'm certain I would have heard SOMETHING about this.

 

FarCenter

(19,429 posts)
33. Some references
Tue Apr 3, 2012, 10:21 AM
Apr 2012
http://en.wikipedia.org/wiki/Causes_of_autism

Diabetes in the mother during pregnancy is a significant risk factor for autism; a 2009 meta-analysis found that gestational diabetes was associated with a twofold increased risk. Although diabetes causes metabolic and hormonal abnormalities and oxidative stress, no biological mechanism is known for the association between gestational diabetes and autism risk.[22]



Prenatal risk factors for autism: comprehensive meta-analysis
http://bjp.rcpsych.org/content/195/1/7.full

The meta-analysis found few statistically significant risk factors. Maternal gestational diabetes was associated with a two-fold increased risk of autism. In addition, a significant 81% elevated risk was observed in relation to maternal bleeding during pregnancy. Maternal medication use was also associated with a 46% increased risk. Although 15 studies examined the relationship between prenatal medication use and risk of autism, the majority studied the general use of any medications during pregnancy, whereas only a few examined the association with specific classes of medications. A meta-analysis of the two studies that looked specifically at psychiatric medication use during pregnancy suggested a significant positive association with the risk of autism (RR = 1.68).


Common Link Suggested Between Autism and Diabetes: Study Implicates Hyperinsulinemia in Increased Incidence of Autism
http://www.sciencedaily.com/releases/2011/10/111019184622.htm

From his studies in both areas, Stern knew two things: PI3K/Tor was the major pathway for insulin signals within cells, and insulin could affect synapses in a remarkably similar way to the mGluR defects associated with autism.

"When I read that the incidence of autism was increasing, and combined that with the fact that the incidence of Type 2 diabetes is also increasing, it seemed reasonable that each increase could have the same ultimate cause -- the increase in hyperinsulinemia in the general population," Stern said. "I didn't do anything with this notion for a few years because it seemed so obvious that I figured everyone already knew this hypothesis, or had tested it and found it was not true."

Stern said he changed his mind a few months ago when a health care consulting firm asked him to provide input about autism.

"In preparing for this interview, I discovered that gestational diabetes was the most important identified maternal risk factor for autism, but that 'no known mechanism could account for this,'" Stern recalled. "When I read this, I was speechless. That's when I realized that this was not obvious to others in the field, so I decided to write this up with the hope that clinicians might become aware of this and treat their patients accordingly."

YellowRubberDuckie

(19,736 posts)
38. Thank you for the info, but for future reference...
Tue Apr 3, 2012, 12:25 PM
Apr 2012

...wikipedia is not, nor will it ever be an actual reference for ANYTHING. It is like the bible. Use it to prove your point and it will automatically be dismissed as hogwash.

I guess it could make sense, but the leading experts on Autism will still tell you there is no conclusive evidence of cause and effect that has been proven.

 

FarCenter

(19,429 posts)
41. It depends on the topic -- In this case it has 124 references, mostl to peer reviewed journal papers
Tue Apr 3, 2012, 12:53 PM
Apr 2012

So the wiki article is a good starting point for researching the topic.

The wiki article is also a good place to look for search terms that you can use with Google to look for information beyond the references to make sure that the wiki article isn't just cherry picking references.

RebelOne

(30,947 posts)
23. I guess I am doing something right.
Mon Apr 2, 2012, 03:46 PM
Apr 2012

I buy most products that say sugar free. I am an ice cream lover and only buy sugar-free ice cream. And Smucker's has sugar-free fudge syrup. And now Hersey has sugar-free chocolate, and Reese's now has sugar-free peanut butter cups. I can't tell the difference between sugar free and those products loaded with sugar.

HappyMe

(20,277 posts)
27. Everything in moderation.
Mon Apr 2, 2012, 04:54 PM
Apr 2012

I don't eat candy or drink soda every day. Don't put sugar in my coffee.

I'm not worried.

Tripod

(854 posts)
29. This makes sense to me.
Tue Apr 3, 2012, 01:50 AM
Apr 2012

I've wondered what has happened to me over the years, now I know. I have had type one diabetes for 34 years now, and have wondered what is wrong with me in the past decade or so. Now I get it. Thanks, I'm just going to get more stupid.

TwilightGardener

(46,416 posts)
34. Oh well. I've been cutting back on fast and processed food, red meat, etc.--
Tue Apr 3, 2012, 10:35 AM
Apr 2012

never was a smoker or a drinker, never more than 10-15 lbs overweight, increased my physical activity of late...but here's where I jump off the healthy-lifestyle bandwagon. Gotta have my sugar and sweets.

 

FarCenter

(19,429 posts)
37. Starch is depolymerized to glucose in the small intestine, so it is like eating corn syrup
Tue Apr 3, 2012, 11:37 AM
Apr 2012

The main difference between corn starch and corn syrup is that syrup is made by depolymerizing the starch outside of the intestinal tract.

The other difference is how long it takes to depolymerize the starch in your intestines, which leads to a flattening of the rate at which glucose is absorbed into your blood stream -- the slower the better.

Some higher molecular weight carbs make it to the large intestine where they are fermented by gut bacteria and converted to short chain fatty acids.

SoCalDem

(103,856 posts)
40. When people ate at home, and ate scratch-made foods, added sugar was not much of a problem
Tue Apr 3, 2012, 12:38 PM
Apr 2012

Most canned foods didn't used to come with added sugars.
People used to make their own spaghetti sauce.. (we NEVER put sugar in it)

Cookies were a TREAT.. and the sugar in them was spread out over 6-8 dozen (consumed by many people in the family)

Soda pop/koolaid/etc was a TREAT for birthday parties, camping trips/etc.

Ketchup for fries was not a big problem, because fries were a RARE treat (this is pre fast-food-places-on-every-corner)

Sugar was just another cupboard staple..like flour, baking powder, etc. It was an INGREDIENT of a recipe, and was NOT in everything we ate.

And we ate at MEALTIME.. We did not graze all day as we worked, drove, etc.

We were not always sucking something sweet through a straw all day long. When we were thirsty, we got up from our chair & went to the drinking fountain (or refrigerator) & had a drink of.....WATER.

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