Guide

A Protein Style Double-Double clocks in at 460 calories and 30 g of protein on In-N-Out’s nutrition page.

Protein is counted as 4 calories per gram on food labels, so multiplying grams of protein by 4 gives a solid calorie estimate.

Protein uses about 20–30% of its own calories during processing, so a 25 g serving often “costs” around 20–30 calories to handle.

A whey shake can land anywhere from 120 to 700+ calories, based on your scoop size, liquid, add-ins, and how you measure.

One 1 1/3-cup serving lists 210 calories before milk, with most calories coming from carbs plus 10 g protein.

A typical 30-gram scoop lands near 110–130 calories, and the serving weight on the label is what decides your real total.

Protein digestion can burn about 20–30% of its own energy, so a 30 g serving may cost around 25–40 kcal to process.

A Subway protein bowl can land anywhere from a light lunch to a full dinner, since meat choice, cheese, sauces, and extras swing the calorie total fast.

Protein has 4 calories per gram, and digesting it uses some of that energy, so net calories tend to be lower than label math.

Protein grams come from protein calories, and protein has 4 calories per gram, so divide protein calories by 4 to get grams.