What should you order at a smoothie chain?

Order the small size, add protein, and skip anything made with juice, sherbet or added sugar. Then check the label: protein near your meal line (30 g at 165 lb) and added sugar at 10 g or less. The fruit smoothies we checked on two big chains’ menus have 1 to 5 g of protein, so keep those for a treat.

A smoothie shop looks like the healthy choice on any street. The menu is all fruit, the cups are bright, and the names say lean, slim or protein. But a 20 oz Caribbean Way at Smoothie King has 83 g of sugar and 2 g of protein, and a medium Mango-A-Go-Go at Jamba has 93 g of sugar and 1 g of protein. The fruit is fine. The sugar comes from the juice blends, the turbinado and the sherbet that go in with it, and the protein never shows up.

What’s in the cups

Buying a smoothie is like buying a salad. The word on the menu tells you very little, and the ingredients tell you almost everything. These are each chain’s own numbers, from Smoothie King’s menu pages (opened in November 2026) and Jamba’s October 2026 nutrition spreadsheet, graded on the six meters in Build your glass for a 165 lb adult eating three meals a day.

Smoothie King prints added sugar on every smoothie’s page. Jamba’s spreadsheet lists total sugar only, so its drinks get half marks on the Glucose meter. Neither chain prints its recipe by weight or its vitamins, so every cup gets half marks on Processing and Nutrients too, and a half mark counts as a miss. No cup on the list can be an A on its label, and the fruit cups land at D because they miss Muscle by a mile.

The ingredients explain the sugar. The Caribbean Way is bananas, strawberries, a papaya juice blend and turbinado, and Angel Food is strawberries, bananas, nonfat milk and turbinado. The Hulk adds butter pecan ice cream. Jamba’s Strawberry Whirl is water, strawberries, bananas, ice and a pear and apple juice concentrate blend. The US guideline counts turbinado and juice concentrate as added sugar.

The fair side

No chain is only fruit cups. Smoothie King’s Gladiator Strawberry has 45 g of protein and 1 g of sugar in 20 oz, and Jamba’s PB + Banana Protein with whey has 44 g of protein. The Gladiator grades a C as a meal anyway, because it’s a protein drink with 220 calories and 1 g of fiber, so it misses the Energy and Hunger lines. Have it after a workout, or next to a piece of whole fruit. Smoothie King lists a fiber blend among the Gladiator’s popular add-ons.

The old rules, still right

Gyroscope’s Restaurant and Fast Food Guide has a section on smoothies and juice bars, and its advice holds up:

1. Order a small or kid-size. A 20 oz cup is a lot of drink.
2. Add protein, flax or chia. Smoothie King lists whey protein as a popular add-on for the Caribbean Way.
3. Look for vegetables and lower sugar fruit, like spinach, berries or kiwi.
4. Skip anything made with sorbet or fruit juice. Sherbet and ice cream too.

To those we’d add one more. Check the label for protein and added sugar before you order, the same two numbers you’d check on a glass at home.

The same glass at home

Most chain fruit smoothies have a home twin: the same fruit, plus milk and Greek yogurt, with no juice and no turbinado. The strawberry banana yogurt glass is a cup of 2% milk, 7 oz of plain Greek yogurt, a cup of frozen strawberries and a banana. It has 396 calories, 30 g of protein, 6 g of fiber and 40 g of sugar, none of it added, and it clears all six meters for an A.

It costs about $2.73, with milk, bananas and strawberries at the October 2026 BLS average prices and Greek yogurt at USDA’s November 2026 average. The strawberries are priced fresh, since there’s no federal price for frozen fruit.

The sugar adds up too. Angel Food three times a week comes to about 17 lb of added sugar in a year, more than four 4 lb bags. Is it cheaper to make my own? runs it with your order, your price and how often you buy.

The peanut butter banana oat glass has about two thirds of the Hulk’s calories, more protein (34 g against 23) and no added sugar. The bowl has the same calories as the Acai Dream bowl with almost four times the protein.