Fruits and veggies contain fructose and glucose at naturally healthy levels (within reason), but sugar-sweetened beverages can increase your intake dramatically.

Sugars form a necessary part of the human diet and have been embedded into our DNA for eons.

If you eat vegetables, you eat naturally occurring fructose and glucose every day. If you eat fruit, you eat naturally occurring fructose and glucose every day. Duh, shall we proceed...

All tree, bush, and vine fruits, and all berries that people eat contain fructose and glucose, as do most vegetables. In plants, fructose may be present as fructose, and glucose as glucose, or both as components of sucrose. Sucrose is composed of a molecule of glucose and a molecule of fructose bonded together. Below is some valuable nutrition information from US Department of Agriculture, which always leans a fair way to support commerce. Note that the figures are for 3.5 ounces. A good-sized apple, the size I would consider to still be an apple, is 6 to 7 ounces.

Sugar content of common plant foods (g/100g)(1)
Fruits            Total Carbohydrate (grams)    Total Sugar (grams)    Free Fructose (grams)
Apples                   13.8                                                         10.4                          5.9
Apricots                 11.1                                                           9.2                           0.9
Bananas                22.8                                                        12.2                           4.9
Figs                        63.9                                                        47.9                         22.9
Grapes                   18.1                                                         15.5                          8.1
Peaches                  9.5                                                          8.4                            1.5
Pears                     15.5                                                          9.8                           6.2
Pineapple              13.1                                                          9.9                            2.1
Plums                    11.4                                                          9.9                            3.1

Beets                    9.6                                                           6.8                            0.1
Carrots                 9.6                                                           4.7                            0.6
Corn                    18.7                                                          6.3                            1.9
Red pepper         6.0                                                           4.2                            2.3
Onion, sweet       7.6                                                            5.0                           2.0
Sweet potato      20.1                                                           4.2                           0.7

Too Much Sugar
Sugar or corn-sweetened sodas have between 20 to 80 grams of sugar per serving. Keep that in mind next time you open the fridge.

A major - and possibly the biggest - problem with the American diet today is our sugar consumption. High-fructose corn syrup (HFCS), which was introduced into our diets in 1970 has made us (as a country) substantially less healthy. The 'HFCS' epidemics is linked to obesity, adult-onset-diabetes, and other metabolic syndrome disorders that many Americans face today.

What to Do?

It is simple... Eat as much sugar as you possibly can today... as long as it is a natural sugar in your vegetables!

Oh and by the way, if you do start to feel that sugar weight accumulating around the waist line, that could be your body telling you that it's time to recommission those vertical jump bands, therapy bands and/or rehab bands or pull-up bands : )