How many calories are in a banana boat Smoothie King?

Smoothie King is a popular smoothie shop that offers a wide variety of blended fruit drinks and smoothies. One of their signature smoothies is the Banana Boat smoothie. For people watching their calorie intake or following a specific diet plan, knowing the calorie count of menu items is important. So how many calories are actually in a Banana Boat smoothie from Smoothie King? Let’s take a closer look.

What is in a Banana Boat Smoothie?

The Banana Boat is a creamy, sweet smoothie made with bananas, strawberries, orange juice, and Smoothie King’s Gladiator protein blend. According to the Smoothie King website, a small 20 oz Banana Boat smoothie contains the following ingredients:

– Bananas
– Strawberries
– Orange juice
– Gladiator protein blend (whey protein isolate, soy protein isolate, whey protein concentrate)
– Ice

The smoothie has a sweet, tropical flavor from the combination of bananas, strawberries, and orange juice. The Gladiator protein adds extra protein to help make the smoothie more filling and nutritious. The ice gives it a thick, cold blended texture.

Nutritional Information for a Small Banana Boat

According to Smoothie King’s website, the nutritional information for a small 20 oz Banana Boat smoothie is:

– Calories: 340
– Total Fat: 2.5g
– Saturated Fat: 1.5g
– Trans Fat: 0g
– Cholesterol: 15mg
– Sodium: 180mg
– Total Carbohydrates: 63g
– Dietary Fiber: 5g
– Sugars: 51g
– Protein: 22g

So a small Banana Boat smoothie from Smoothie King contains 340 calories.

Calorie and Macronutrient Breakdown

Let’s break down those 340 calories further looking at the macronutrients:


A small Banana Boat smoothie provides 22g of protein, which is 44% of the calories.

Protein is important for building and repairing muscle tissue, supporting immune function, and keeping you feeling full. The whey and soy protein isolates provide a concentrated source of high quality protein.


There are 63g total carbs in a small Banana Boat, which accounts for 50% of the calories.

The carbs come mostly from the banana, strawberries, and orange juice, providing natural sugars as well as 5g of fiber. The sugar content is fairly high at 51g.


Dietary fat makes up only 7% of the calories, with 2.5g total fat and 1.5g saturated fat.

The small amount of fat comes primarily from the whey and soy protein isolates. This smoothie is low in fat overall.

Calorie Density

When looking at calorie density, a small 20 oz Banana Boat smoothie contains:

– 340 calories total
– 20 oz volume

This equals around 17 calories per fluid ounce.

To compare, skim milk contains about 13 calories per ounce. So the Banana Boat is a higher calorie density beverage.

How Banana Boat Compares to Other Smoothie King Smoothies

The Banana Boat is on the higher side for calories compared to other Smoothie King smoothies. Here’s how it compares:

– Strawberry X-Treme: 190 calories (small)
– Caribbean Way: 300 calories (small)
– Angel Food: 340 calories (small)
– Banana Boat: 340 calories (small)
– Lean 1: 380 calories (small)
– Chocolate Thunder: 580 calories (small)

So it’s moderate in calories for a Smoothie King blended drink. Smoothies like Strawberry X-Treme are lower in calories, while ones like Chocolate Thunder are significantly higher.

Tips for Lightening Up the Banana Boat

If you’re looking to lighten up the Banana Boat smoothie, there are a few easy ways to reduce the calories:

– Order a smaller size. The small 20 oz is 340 calories, while the large 32 oz bumps up to 540 calories.
– Ask for less or no added Gladiator protein blend to cut down on calories from the protein isolates.
– Substitute spinach or kale for the strawberries to add nutrients and cut calories.
– Ask for half the orange juice and replace with water or unsweetened almond milk.
– Request less banana to reduce the sugar content.
– Add chia seeds, flaxseed, or oats for extra fiber.

Making just a few simple modifications can help drop the calorie count while still keeping all the great banana, strawberry, and orange flavor.

The Bottom Line

So in summary, a small 20 oz Banana Boat smoothie from Smoothie King contains 340 calories. It provides a significant amount of natural sugars from fruit as well as added protein.

Compared to other Smoothie King smoothies, it’s moderately high in calories. By ordering a smaller size, reducing protein powder, adding fiber, and modifying mix-ins, you can lower the calorie count of this tropical treat.

Overall the Banana Boat is a sweet and filling on-the-go blended smoothie option from Smoothie King. Being mindful of portion size and customizations can help keep calories in check.

Frequently Asked Questions

How many calories are in a large Banana Boat smoothie?

A large 32 oz Banana Boat smoothie from Smoothie King contains 540 calories.

Is the Banana Boat smoothie healthy?

While high in natural sugars from fruit, the Banana Boat does provide a good amount of protein, fiber, vitamins, and minerals. In moderation, it can be part of a balanced diet. Limiting added sugars and ingredients is recommended for better nutrition.

What is the sugar content in a Banana Boat?

A small Banana Boat contains 51g of sugar. The majority comes from the bananas, strawberries, and orange juice.

Are there any artificial ingredients in the Banana Boat?

Smoothie King states that the Banana Boat contains no artificial flavors, colors, or preservatives.

Can you modify or customize the Banana Boat smoothie?

Yes, Smoothie King allows modifications to their smoothie recipes. You can adjust ingredients, proportions, and add-ins to customize the nutritional profile or taste.


When monitoring your calorie intake, it’s important to be aware of how many calories are in the foods and drinks you consume. A small Banana Boat smoothie from Smoothie King packs 340 calories. While not the lowest calorie option on the menu, you can modify the recipe to create a lighter smoothie. Getting nutrition information ahead of time and customizing your order allows you to enjoy tasty treats like the Banana Boat while still meeting your health goals.

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