Protein coffee, or "pros," has become one of the most visible health and fitness trends. What started as a TikTok movement has now become a regular menu item at major chains like Starbucks and Peet's Coffee. Business Standard estimates that the global protein coffee market will grow from $4.5 billion in 2024 to $14.7 billion by 2034.
Experts explain: combining caffeine with protein — whey, plant-based, or collagen — allows you to conveniently get a significant portion of your daily protein intake. This drink is especially appreciated by people who skip breakfast, exercise vigorously, or are trying to control their weight. Protein increases the feeling of satiety, stabilizes blood sugar levels, and speeds up metabolism.
At the same time, experts emphasize: "pro" is not a magic potion. Excessive consumption, in particular 5 or more cups per day, can cause nausea, stomach irritation, or increased anxiety due to excess caffeine. It is also important to be careful when choosing protein - avoid products with a lot of sugar and artificial ingredients.
Dr. C. Nair of Lilavati Hospital in Mumbai explains that the synergy of caffeine and amino acids can actually be beneficial for energy and muscle support. “The big fat burning claims are not always clinically proven,” he adds. On average, a serving of protein coffee contains 10–20 grams of protein, with whey isolate being considered more effective, while collagen supports joints, and pea or soy protein are the best options for vegans.
The trend is especially popular among gym-goers and people looking for a quick way to recover from a workout. The caffeine stimulates the nervous system, while the protein triggers muscle regeneration. Together, they can promote thermogenesis, a natural process that burns calories.
For those seeking a more balanced drink, nutritionists recommend making protein coffee smoothies with frozen fruit, nut butters, or spices. Protein coffee should be a supplement to your diet, not a replacement for a full meal.
Experts warn: people with chronic kidney disease, acid reflux, or high sensitivity to caffeine should limit their consumption of "pros." Protein overload can affect kidney function, especially if there are already diagnosed disorders.
Expert Sid Das emphasizes that the benefits of protein coffee depend on a person's genetics, metabolic health, and lifestyle. He advises choosing blends with minimal sugar and clean ingredients.
The "pro" trend is actively developing, but the main rule remains the same: the benefits will only come when the drink is consumed consciously and in moderation.

