Colby jack cheese calories come to 110 for a 1 oz (28 g) serving and 393 per 100 g, unmelted. Fat drives that total, supplying 74% of the calories, while protein adds a useful 6.5 g per ounce. The bigger variable is portion size, because shredded cheese piles up fast.
110kcal
1 ounce · 28 g, unmelted
24%protein
6.5 gProtein
1 gCarbs
9.1 gFat
How to burn off 110 kcal
—Walking, brisk
—Jogging
—Cycling, moderate
—Swimming
Skip the math. BodyPal counts these calories from your steps and workouts automatically.
Nutrition facts
Unmelted · per 28 g
Calories
110 kcal
Protein
6.5 g
Carbohydrate
0.6 g
Fat
9.1 g
Saturated fat
5.5 g
Cholesterol
27 mg
Sodium
177 mg
Potassium
29 mg
Iron
0.1 mg
Source: USDA FoodData Central
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Verified nutrition data
Numbers on this page come from USDA FoodData Central, the U.S. Department of Agriculture’s food composition database, and from manufacturer labels where a branded product is named. Last verified September 2026. How we verify our data →
Colby jack cheese: calories, protein and sodium by serving
Percent of daily value uses the FDA reference of 2,000 kcal a day.
Serving
kcal
Protein
Carbs
Fat
Sodium
% DV kcal
1 oz (28 g)
110
6.5 g
0.6 g
9.1 g
177 mg
6%
1 slice (21 g)
83
4.9 g
0.5 g
6.8 g
133 mg
4%
1 cup shredded (113 g)
444
26.2 g
2.5 g
36.6 g
715 mg
22%
100 g
393
23.2 g
2.2 g
32.4 g
633 mg
20%
3 × 1 oz (28 g)
330
19.5 g
532 mg
5 × 1 oz (28 g)
550
32.5 g
886 mg
A slice is 83 calories, a cup of shreds is 444
Colby jack is easy to count when it comes pre-portioned. One slice weighs 21 g and carries 83 calories, while a 1 oz (28 g) stick or cube runs 110. Those are small numbers, about 4% and 6% of the daily calorie value.
Shredded cheese is where the total gets away from you. A full cup (113 g) holds 444 calories, 36.6 g of fat and 715 mg of sodium, which is 22% of daily calories in a single topping. Few people measure the shreds they scatter over tacos or a casserole, so the real number often sits closer to the cup than to the slice.
Snacking by the cube adds up the same way. Two ounces come to 220 calories, three ounces to 330, and five ounces (140 g) to 550. If you keep a bag of cubes on hand, counting them out onto a plate is the simplest way to keep the snack at the size you meant.
Fat supplies 74% of the calories
Per 100 g, colby jack has 32.4 g of fat, 23.2 g of protein and just 2.2 g of carbs. In calorie terms that is 74% from fat, 24% from protein and 2% from carbohydrate. This is a fat food with a solid protein bonus, not a protein food.
The protein is still worth noticing. A 1 oz serving gives 6.5 g, which is 13% of the 50 g daily value, and a slice adds 4.9 g. A cup of shreds reaches 26.2 g, or 52% of the daily value, though it brings 444 calories along with it.
Carbs barely register. An ounce has 0.6 g of carbs and 0.1 g of sugar, with 0 g of fiber. If you track low-carb macros, colby jack fits easily, and the fat is what fills your calorie budget.
Saturated fat is the row to watch
Of the 32.4 g of fat in 100 g, 19.7 g is saturated. The daily value for saturated fat is 20 g, so 100 g of colby jack comes close to a full day's amount on its own. On this label, that number stands out more than the calories do.
Sodium is moderate for a cheese. An ounce has 177 mg, which is 8% of the 2300 mg daily value, and a slice has 133 mg, or 6%. A cup of shreds climbs to 715 mg, 31% of the daily value, so the portion is the lever if you watch salt.
Cholesterol sits at 98 mg per 100 g, against a daily value of 300 mg. Potassium is low at 105 mg per 100 g. None of these rows is a reason to skip the cheese, but they are a reason to treat it as a measured ingredient rather than a free topping.
Pair it with fiber, since the cheese has none
Colby jack has 0 g of fiber and very few carbs, so it adds little bulk to a meal. Pairing an ounce with apple slices, whole-grain crackers or raw vegetables brings the volume and fiber the cheese lacks, and the snack feels bigger than its 110 calories.
In cooked dishes, measure the shreds before they go in. A slice on a burger is 83 calories, while a heavy handful over nachos can be several times that. Grating it yourself or using slices makes the amount easier to see.
BodyPal can log colby jack from a photo of your plate, which helps when the cheese is melted into a dish and hard to weigh. Brands like Kroger, Market Pantry and Whole Foods Market sell it as slices, shreds, bars and cubes, so check which form you are eating before you log it.
How does colby jack cheese compare?
Here is how colby jack stacks up against american cheese, shredded cheese and string cheese, per 100 g and per usual serving.
Verdict: For the fewest calories pick string cheese at 295 per 100 g, or american cheese at 75 per slice for a sandwich, though american carries 1,660 mg of sodium per 100 g. Colby jack, at 393 per 100 g, is the richest of the four, so it earns its place when you portion it by the slice.
Most popular colby jack cheese brands in the United States
One ounce (28 g) has 110 calories and a 21 g slice has 83 calories. Per 100 g colby jack cheese is 393 calories.
Is colby jack cheese good for weight loss?
An ounce is 110 calories with 9.1 g of fat and 6.5 g of protein, so a cup of shredded colby jack (113 g) already reaches 444 calories. A single 21 g slice keeps it to 83 calories.
Colby jack vs American cheese: which has fewer calories?
American cheese is 366 calories per 100 g against 393 for colby jack, a difference of 27 calories per 100 g.
How much protein is in colby jack cheese?
Colby jack cheese has 23.2 g of protein per 100 g, which works out to 6.5 g in a 1 oz portion (28 g) and 4.9 g in a 21 g slice.
How many calories are in a slice of colby jack cheese?
A 21 g slice of colby jack has 83 calories. It also gives 4.9 g of protein, 6.8 g of fat and 133 mg of sodium, so each extra slice on a sandwich adds up quickly.
Does colby jack cheese have carbs?
Colby jack has just 2.2 g of carbs per 100 g and 0.6 g per 1 oz serving. It has 0 g of fiber and 0.1 g of sugar per ounce, and carbs supply only 2% of its calories.
What are the macros in colby jack cheese?
Colby jack's calories split 74% fat, 24% protein and 2% carbs. Per 100 g that is 32.4 g of fat, 23.2 g of protein and 2.2 g of carbohydrate, a high-fat cheese with a solid protein share.
What is the nutrition for 2 oz of colby jack cheese?
Two ounces (56 g) of colby jack have 220 calories, 13 g of protein and 354 mg of sodium. That is a typical snack portion of cubes, double a single ounce.
What are the nutrition facts for 1 oz of colby jack cheese?
A 1 oz (28 g) serving has 110 calories, 6.5 g of protein, 9.1 g of fat, 0.6 g of carbs and 177 mg of sodium. That covers 6% of daily calories, 13% of protein and 8% of sodium.
