8 Unhealthiest Fast-Food Chain Smoothies

Even though it's not smoothie season, you may soon find yourself craving one of these chilled, sweet drinks when it's a little warmer outside. When that happens, you may run to your nearest smoothie provider, such as Jamba Juice or Smoothie King or even Starbucks or McDonald's. While smoothies from your local fast-food chain can be nutritious, often containing fruits and vegetables loaded with antioxidants, they can sometimes be very unhealthy depending on what's in them.

8 Unhealthiest Fast-Food Chain Smoothies (Slideshow)

Since smoothies contain fruit, they tend to be fairly high in sugar already. And oftentimes, fast-food chains add extra sugar and additional additives to make their drinks even sweeter. The addition of these ingredients can drive up the amount of calories, fat, sodium, carbs, and sugar in your favorite smoothie, making it a lot less healthy than you may have thought it was.

Not all fast-food chain smoothie drinks are unhealthy, but we found a few that you should be wary of, as they're significantly high in calories, fat, sodium, carbs, and sugar. One of the unhealthiest smoothies, the Jamba Juice Peanut Butter Moo'd, has a calorie count as high as 770 with 20 grams of fat and 109 grams of sugar in a 20-ounce serving. Another smoothie, the Planet Smoothie PBJ, has a calorie count of 710 with 28 grams of fat and 64 grams of sugar. Take a look at our slideshow to see other fast-food chain smoothies you should watch out for.