How many calories in
protein shake?
Protein Shake comes in around 65 calories per 100g. A 12-oz serving is 231 calories; a 16-oz pour is 307. Sweetened drinks are the #1 hidden calorie source for most people.
Common serving sizes.
Calories scale with portion. Here's how a typical protein shake serving translates in your tracker:
What 65 calories means.
Protein-dense — 13.8 g of protein per 100 kcal makes protein shake an efficient choice for hitting a protein target while managing calories.
Protein Shake vs. similar foods.
How protein shake stacks up on calories and protein against foods people commonly compare it to:
Skip the lookup. Snap the plate.
Point your iPhone camera at protein shake and Spotwell's AI estimates the portion and macros in a few seconds. Check it, adjust anything that looks off, and log it.
Download on theApp StoreQuick answers.
How many calories in protein shake?
Protein Shake has approximately 65 calories per 100g. A typical serving — 3 oz (85g) — comes in at 55 calories.
How much protein is in protein shake?
9g of protein per 100g. That puts protein shake at roughly 13.8g of protein per 100 calories — a useful lens when comparing to other beverages sources.
How do I log protein shake accurately?
The simplest method: weigh it on a kitchen scale, then enter grams in your tracker. With Spotwell, you can skip the scale — point the camera at the plate and the AI estimates the portion in a few seconds. Adjust the value if it looks off.
Is protein shake good for weight loss?
It depends on your overall calorie target. Protein Shake is naturally low-calorie at 65 kcal per 100g, so it's easy to fit into a deficit.