7. Sugar can cause gum disease, which can lead to heart disease.
Increasing evidence shows that chronic infections, such as those that result from periodontal problems, play a role in the development of coronary artery disease.
The most popular theory is that the connection is related to widespread effects from the body's inflammatory response to infection.
8. Sugar affects behavior and cognition in children.
Though it has been confirmed by millions of parents, most researchers have not been able to show the effect of sugar on children's behavior.
A possible problem with the research is that most of it compared the effects of a sugar-sweetened drink to one containing an artificial sweetener.
It may be that kids react to both real sugar and sugar substitutes, therefore showing no differences in behavior.
What about kids' ability to learn?
Between 1979 and 1983, 803 New York City public schools reduced the amount of sucrose (table sugar) and eliminated artificial colors, flavors and two preservatives from school lunches and breakfasts.
The diet policy changes were followed by a 15.7 percent increase in a national academic ranking (previously, the greatest improvement ever seen had been 1.7 percent)
9. Sugar increases stress.
When we're under stress, our stress hormone levels rise; these chemicals are the body's fight-or-flight emergency crew, sent out to prepare the body for an attack or an escape.
These chemicals are also called into action when blood sugar is low.
For example, after a blood-sugar spike (say, from eating a piece of birthday cake), there's a compensatory dive, which causes the body to release stress hormones such as adrenaline, epinephrine and cortisol.
One of the main things these hormones do is raise blood sugar, providing the body with a quick energy boost. The problem is, these helpful hormones can make us feel anxious, irritable and shaky.
10. Sugar takes the place of important nutrients.
According to USDA data, people who consume the most sugar have the lowest intakes of essential nutrients--especially vitamin A, vitamin C, folate, vitamin B-12, calcium, phosphorous, magnesium and iron. ironically, those who consume the most sugar are children and teenagers, the individuals who need these nutrients most.