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Costco muffin calories

Costco muffin, commercially prepared blueberry muffin
630kcal
1 Costco-size muffin · 168 g, commercially prepared blueberry muffin
5%protein
7.5 gProtein
89 gCarbs
27 gFat
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Nutrition facts
Commercially prepared blueberry muffin · per 168 g
Calories630 kcal
Protein7.5 g
Carbohydrate89 g
Fat27 g
Saturated fat4.8 g
Cholesterol50 mg
Sodium564 mg
Potassium203 mg
Iron2.2 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 →

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Costco muffin FAQs
How many calories are in a Costco muffin?

A Costco-size muffin of about 168 g is roughly 630 calories. Half a muffin is about 315 calories.

Is a Costco muffin good for weight loss?

One muffin carries 630 calories, 89 g of carbs and 52.9 g of sugars, close to a third of a 2,000 calorie day. A 85 g half portion is 319 calories.

Costco muffin vs a low-fat blueberry muffin?

A commercially prepared muffin is 375 calories per 100 g, while the low-fat blueberry version is 255. Fat is 16.1 g per 100 g versus 4.2 g.

How much sugar and protein are in a Costco muffin?

A 168 g muffin has about 52.9 g of sugars, 7.5 g of protein and 27 g of fat. Per 100 g that is 31.5 g sugars and 4.5 g protein.