Those 100-calorie snack packs not holding you over until dinner? Try a low-calorie serving of this hunger-halting smoothie.

Just one cup of this creamy liquid can turn hunger off for hours, according to John La Puma, MD, author of ChefMD's Big Book of Culinary Medicine. And it actually tastes yummy, too.

Tangy and Cool Buttermilk and Avocado Smoothie
One cup of this fill-you-up smoothie will make only a 145-calorie dent in your diet. Here's how you make it:

Ingredients
1 cup organic fat-free cottage cheese, such as Horizon brand

2 cups 1% low-fat buttermilk

1/2 ripe avocado, peeled, seeded, and diced

1 tablespoon organic agave nectar, such as Madhava brand

4 ice cubes or 1/2 cup crushed ice

Preparation
Place the cottage cheese and 1/2 cup of the buttermilk in a blender. Cover and blend until fairly smooth, about 30 seconds. Scrape down the sides of the blender; add the avocado. Cover and blend until fairly smooth, about 30 seconds. Add the remaining buttermilk and the agave nectar; cover and blend 10 seconds. Add the ice; cover and blend until the smoothie is thick and the ice has melted.

Nutritional Information (per 1-cup serving; makes 4)
Calories: 145
Saturated fat: 1.5 grams
Unsaturated fat: 3 grams
Carbohydrates: 15 grams
Protein: 11 grams
Fiber: 2 grams
Calcium: 178 milligrams
Sodium: 342 milligrams
Magnesium: 7 milligram

How many calories do you need each day? Enter your height, weight, age, and activity level into this tool to find out.