So here you are, thinking the snack or small meal you're about to eat is wholesome and well balanced. It's not a cinnamon roll, right? That may be, but it could contain a whopping amount of sugar.

Health Canada has set the adult recommended daily value for carbohydrates as 300 grams in a 2,000-calorie-per-day diet, and has no recommended daily value for sugars. That's right. Zero. "This is because there is no daily recommended amount of sugars you need to eat each day," its website says.

"In terms of specific foods that can be 'off-balance' in terms of carbohydrates, sugary products tend to be the culprit—or foods that have a lot of added sugars to them," says Toronto-area registered dietitian Nicole Berkowitz. Think this doesn't apply to what you're eating? Here's the rub: Even though you think you can easily identify sugary products, there are stealth sugars (a.k.a. carbohydrates) in many of the foods you probably only ever thought of as healthy.