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How Many Calories Are in a Protein Shake?

author image Carly Schuna
Carly Schuna is a Wisconsin-based professional writer, editor and copy editor/proofreader. She has worked with hundreds of pieces of fiction, nonfiction, children's literature, feature stories and corporate content. Her expertise on food, cooking, nutrition and fitness information comes from a Level 1 personal training certification and years of in-depth study.
How Many Calories Are in a Protein Shake?
A spoonful of blueberry protein shake over a glass. Photo Credit: Photosiber/iStock/Getty Images

Depending on how big a shake is and the ingredients it contains, it might have fewer than 100 calories or more than 1,000. Your fitness and dietary goals can help dictate the calorie range that’s right for you in a shake, but it’s also important to consider the quality of the shake’s ingredients and what the alternatives might be.

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Protein Sources

A typical scoop of protein powder is between 30 and 50 grams, or 1/4 cup, but its calorie count can vary. A scoop of whey powder has about 115 calories, while a scoop of soy powder has about 175. A scoop of brown rice protein powder has 110 calories, while approximately equivalent amounts of pea powder and hemp powder have 130 calories and 135 calories, respectively. If you’re making your own shakes, you may use alternate protein sources like milk or yogurt. One cup of low-fat milk has about 100 calories, and 1 cup of nonfat Greek yogurt has 130 calories.

Other Ingredients

Commercially prepared protein powders and packaged shakes almost always contain additives that act as flavorings, stabilizers and preservatives. Those ingredients do add calories, but typically the bulk of the calorie count is from the concentrated protein. Additives may include natural or artificial flavors, cellulose gum or xanthan gum and sweeteners such as corn syrup, sugar, fructose or sucralose. When making a shake at home, you'll find that your additives are more likely to be whole-food ingredients like fruits, peanut butter, honey or cocoa powder. A medium banana adds about 105 calories to a shake. A tablespoon of peanut butter is about 95 calories, a tablespoon of honey is 65 and a tablespoon of unsweetened cocoa powder is 12.

Calorie Counts

How many calories your shake should contain depends on your goals. If you exercise a lot and are actively trying to gain muscle weight, you probably want a shake with at least 20 grams of protein and several hundred calories. If you’re trying to lose weight, in contrast, you may want to limit calories and use your shake as a meal replacement. If that’s your strategy, Jefferson University Hospital registered dietitian Emily Rubin recommends keeping your shake under 200 calories.

Other Concerns

Whether you’re trying to lose weight, maintain or gain, the calorie count of what you’re eating won’t necessarily tell the whole story. As dietary supplements, protein shakes are a combination of concentrated and isolated nutrients, and they rarely contain whole foods. Unfortunately, that means they also come without protective substances like phytonutrients and antioxidants, which can help prevent disease and boost immunity. Before you make protein shakes a fixture of your regular diet, talk with your doctor.

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