View Full Version : What's the differences between the sugars?

03-08-2007, 09:31 AM
How are sucrose, fructose, lactose, and glucose the same and different? And are there other sugars?

I always get confused by all the sugars.

03-08-2007, 09:34 AM
I'm a co-worker of Questor's and I had asked him this question. We thought we'd stop speculating and just post it!

The reason I asked is because I love bananas, but I've seem some people state their dislike for the nutritional value within these boards, but I didn't know why.

03-08-2007, 09:59 AM
all carbohydrates are made of sugars

the difference between all the sugars is they each have a different molecular configuration.

But is there a difference in the amount of energy needed to break down the different sugars?


this is a really good one:

03-08-2007, 10:17 AM
Sugars are called "saccharides". A "monosaccharide" has a single sugar molecule. There are three different types of monosacharides: glucose (aka dextrose) (http://en.wikipedia.org/wiki/Glucose), fructose (http://en.wikipedia.org/wiki/Fructose), and galactose. (http://en.wikipedia.org/wiki/Galactose) These all have similar but different molecular structures.
Combining two monosaccharides forms a disaccharide:
glucose + glucose = maltose
glucose + galactose = lactose
glucose + fructose = sucrose

I hope that helps....I was reaching way back into grade 11 biology.

03-08-2007, 10:45 AM
Different sugars are processed by the body different. Glucose can be converted to glycogen and stored in muscle. Fructose cannot, and is metabolised in the liver.

03-08-2007, 11:33 AM
So what happens to fructose? Is fructose worse than the others or better than the others or just different because it's processed by the liver.

I looked over those links, I'm sorry I don't have much of a head for that stuff.

Mr. D
03-08-2007, 11:56 AM
Scroll Down to Question#2:


03-08-2007, 01:43 PM
Fantastic article! Exactly what I was looking for...

So bananas aren't going to ruin my cut, but I need to balance them with glucose intake.

That's what I got from that (and also that a few pieces of fruit arne't going to ruin anything really anyway).


Mr. D
03-08-2007, 01:58 PM
I like my fruits first thing in the morning. Post WO shake is always whey/dex. At bedtime I may throw in some fruit with my CC/PB meal, depending on if I have cals/carbs allotment left.

03-08-2007, 02:07 PM
That article is awesome. I am 100% answered. Thank you!