Smoothies might seem like a great way to add fruit and dairy to your diet. But most commercially prepared smoothies have added sugars lurking in them. One major brand boasts 38 grams of sugar (9½ teaspoons) and 230 calories in a single-serving bottle. Granted some of these sugars come from the naturally occurring lactose in the low-fat milk and the fructose in the blueberry juice, but sugar is also the second ingredient listed after milk. I’d rather make my own with a cup of skim milk (80 calories) or plain nonfat yogurt (110 calories), ½ cup of blueberries (45 calories) and a teaspoon of maple syrup (16 calories) instead of opting for a sugar-laden drink disguised as a healthy beverage.