Are Starbucks’ New Protein Coffees a Healthy Choice For Weight Loss?
By Karen Kelly, Registered Dietitian with over 20 years of specialized experience in weight management and bariatric nutrition at New Jersey Bariatric Center®
Medically Reviewed By: Alexis Begliomini, PA-C
Table of contents
At New Jersey Bariatric Center®, we believe in providing our patients with the nutrition information they need to make informed choices. One question we've been hearing lately: "What about those new protein coffees at Starbucks? Are they a healthy choice to help me reach my weight loss goals?" While we recommend prioritizing protein to maintain muscle mass during weight loss, it’s important to look at the complete nutritional picture.
Are Starbucks’ Protein Coffees Healthy?
Starbucks’ protein coffees can support your weight loss goals when ordered strategically. For example, their Iced Vanilla Protein Latte offers 29 grams of protein, but contains 29 grams of sugar, amounting to 270 calories. Modifications like sugar-free syrups, non-fat milk, and skip high-calorie toppings can keep calories in check but homemade options offer better control over nutrition. Incorporating protein into your coffee can help boost satiety and metabolism. You can add a flavored protein powder to help avoid sugar and flavored creamers, as the powder can provide the desired sweetness.
Nutrition Facts
A single scoop of protein powder contains about 6g of protein, 25 calories, and 0g of sugar with 2 ingredients - whey protein and sunflower-derived lecithin to help it dissolve smoothly. Whey protein isolate is a dairy-based protein recognized for its comprehensive amino acid profile, with nine essential amino acids.¹ This means it provides all the essential amino acids your body needs to maintain muscle mass during weight loss.¹ When combined with protein-boosted milk in a grande latte that's up to 36g of protein in a single drink. Cold foam adds 15g of protein.
How Can Protein in Coffee Support Weight Loss?
Protein plays an important role in your surgical and medical weight loss journey. It preserves muscle mass during rapid weight loss after bariatric surgery and weight loss medications. It promotes satiety, keeping you full longer, which can reduce your overall calorie intake.² Protein also supports your metabolism, as it requires more energy for your body to digest.³
Adding protein to coffee can provide sustained energy without the excessive sugar that often comes with flavored coffee beverages. This can be another convenient way to hit your daily protein goals, especially with a reduced appetite while in the medical weight loss program or if you’ve had weight loss surgery.
Should You Choose Starbucks Protein Coffee for Weight Loss?
These drinks provide a substantial 27-36g of protein but still pack 200+ calories. Whether this fits your goals depends on how you’re structuring your daily nutrition. Starbucks offers sugar-free protein coffee options on its menu. Despite being promoted as sugar-free, a grande sized drink contains 9-16g of naturally occurring sugar from the milk, with no added sugars.
How To Build A Healthy Starbucks Protein Latte
It is still possible to enjoy your on-the-go latte from Starbucks by modifying the ingredients. Switching out whole milk for skim or almond milk and choosing sugar-free syrups are healthier options. For an extra boost of protein, cold foam is worth considering. Starbucks’ app allows you to customize your drink by providing a nutritional breakdown for all added ingredients.
For the most control of your calorie and nutrient intake, we recommend brewing your own healthy blend. Here’s a quick, weight loss friendly protein coffee I make at home that has a total of 175 calories with 30g of protein:
How to Make Protein Coffee At Home:
- 12 oz black coffee - zero calories
- Grab your desired flavor of Premier Protein shake - whether it’s their winter mint chocolate for the season or good old fashioned vanilla.
- Heat in microwave for 20 secs
- Froth, add to coffee, and enjoy!
Starbucks vs Homemade:
| Starbucks Grande Vanilla Protein Latte | Homemade Vanilla Protein Coffee |
| Calories: 310 | Calories: 175 |
| Fat: 6g | Fat: 3g |
| Carbohydrates: 36g | Carbohydrates: 4g |
| Sugar: 34g | Sugar: 1g |
| Protein: 27g | Protein: 30g |
For more customized nutritional support, call us at 908-481-1270.
Protein Coffee FAQs
Protein coffee’s texture is generally creamier and the flavoring depends on the type of protein powder or shake you use. If it is flavored with vanilla, caramel, chocolate, etc. the coffee will be rich and sweet. However, if the powder or shake has no flavoring, then it will be your usual coffee with milk taste. If you prefer flavored to give your coffee a nice taste, be sure it does not contain any artificial sweeteners or filler ingredients such as gums and other additives.
Given that protein promotes satiety - the feeling of fullness - adding it to your coffee can result in feeling full longer until your next meal. However, it is not a meal replacement. This is because it lacks essential nutrients found in whole protein foods, such as vitamins, minerals, fiber, and healthy fats. It’s important to have a balanced meal to get the full nutrients your body needs.
Yes, you can put protein powder in a hot beverage, however it's best to mix it with cold or room temperature water ahead of time. This can prevent the powder from clumping and creating a paste. It's also best to let your hot beverage cool down a bit before adding it in.
Sources
- Seed, Shawna, and Begum, Jabeen. "Difference Between Whey and Whey Isolate ." WebMD, WebMD, 26 June 2024, www.webmd.com/diet/difference-whey-and-whey-isolate.
- "Can Drinking Protein Coffee Jump-Start Your Day." , Cleveland Clinic Health Essentials Staff, 27 May 2025, health.clevelandclinic.org/should-you-drink-protein-coffee.
- Owens, Nichole, and Begum, Jabeen. "Can You Mix Protein With Your Coffee?." WebMD, WebMD, 28 Aug. 2025, https://www.webmd.com/diet/protein-coffee.
