McDonald's breakfast calories come to 767 for a Big Breakfast (269 g), or 285 per 100 g, based on USDA fast-food values for the chain. The thing to notice is fat: it supplies 61% of the calories, and the same plate carries 1,477 mg of sodium, 64% of the daily value.
767kcal
1 Big Breakfast · 269 g, fast food
14%protein
27 gProtein
47 gCarbs
52 gFat
How to burn off 767 kcal
—Walking, brisk
—Jogging
—Cycling, moderate
—Swimming
Skip the math. BodyPal counts these calories from your steps and workouts automatically.
Nutrition facts
Fast food · per 269 g
Calories
767 kcal
Protein
27 g
Carbohydrate
47 g
Fat
52 g
Saturated fat
17.2 g
Cholesterol
465 mg
Sodium
1477 mg
Potassium
557 mg
Iron
4.7 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 →
McDonald's breakfast: 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
Big Breakfast (269 g)
767
27.3 g
47.1 g
52.1 g
1,477 mg
38%
Deluxe Breakfast (420 g)
1,197
31.8 g
123.8 g
64 g
1,835 mg
60%
100 g
285
10.2 g
17.5 g
19.4 g
549 mg
14%
3 × Big Breakfast (269 g)
2,300
82 g
4,430 mg
5 × Big Breakfast (269 g)
3,833
136.7 g
7,384 mg
The Deluxe Breakfast climbs to 1,197 calories
The Big Breakfast is the baseline on this page. It weighs 269 g and lands at 767 calories, which is 38% of the daily value used on nutrition labels. That is a large share of a day for one meal, and it arrives before lunch.
The Deluxe Breakfast is a different animal. At 420 g it reaches 1,197 calories, or 60% of the daily value, with 123.8 g of carbs and 41.5 g of sugars against 47.1 g of carbs and 2.5 g of sugars in the Big Breakfast. Most of that jump comes from extra carbohydrate, not extra protein. Protein only moves from 27.3 g to 31.8 g.
Doubling up is where the totals get out of hand. Two Big Breakfasts come to 1,533 calories and 2,954 mg of sodium. Three reach 2,300 calories and 4,430 mg of sodium, well past a full day's sodium reference on their own. Ordering for one is the single biggest lever you have.
Fat supplies 61% of the calories
Break the Big Breakfast down and the picture is clear. Fat provides 61% of the calories, carbs 25% and protein just 14%. Per 100 g that is 19.4 g of fat, 17.5 g of carbs and 10.2 g of protein, so fat leads even by weight.
The full platter carries 52.1 g of fat. Saturated fat runs 6.4 g per 100 g, and cholesterol 173 mg per 100 g, dense figures even by fast-food standards. If you track saturated fat or cholesterol, this is a meal where one plate takes a big bite out of the day.
Protein is respectable in absolute terms. The Big Breakfast gives 27.3 g, 55% of the daily value, which helps it keep you full for a while. Fiber is low at 3 g, and sugars barely register at 2.5 g, so this is a savory, fat-led meal rather than a sweet one.
Sodium is the row to watch
At 1,477 mg, the Big Breakfast uses 64% of the daily value for sodium in one sitting. That leaves little room for the rest of the day if lunch and dinner are anything close to typical. Per 100 g the figure is 549 mg, or 24% of the daily value.
The Deluxe pushes it further, to 1,835 mg, which is 80% of the daily value. These are USDA fast-food values for McDonald's items, and they show how quickly a single tray adds up. The bigger the platter, the steeper the sodium climb.
If you watch sodium, the practical moves are simple. Skip added salt, drink water instead of something salty or sweet, and keep the other meals that day built on less processed food. Potassium sits at 207 mg per 100 g, modest next to the sodium load, so fruit and vegetables later in the day are a sensible counterweight.
How a 767-calorie breakfast fits a day
Treat the Big Breakfast as a main meal, not a warm-up before lunch. At 38% of the daily calorie value, it can cover breakfast and much of what you might otherwise graze on mid-morning. Order black coffee, unsweetened tea or water alongside it, since a sweet drink adds calories without adding protein.
For the rest of the day, lean on the foods the platter lacks. It is low in fiber and potassium, so vegetables, fruit, beans and whole grains fill gaps that this breakfast leaves open. A lighter lunch built around lean protein balances the fat-heavy start.
Sharing is the easiest portion control. Splitting a Deluxe Breakfast between two people puts your share well below a solo Big Breakfast. BodyPal can log the meal from a photo, which makes it easier to see where the rest of your day stands.
How does McDonald's breakfast compare?
Here is how McDonald's breakfast stacks up against a breakfast burrito, a McDonald's hamburger and McDonald's fries, per 100 g and per usual serving.
Verdict: Per 100 g these foods sit close together, from 264 calories for the hamburger to 323 for the fries, so portion size decides the outcome: a 251-calorie hamburger or a 277-calorie serving of burrito is a far smaller hit than a 767-calorie Big Breakfast. For weight loss pick the hamburger; pick the Big Breakfast only when you want one large, filling meal and can budget for its 1,477 mg of sodium.
McDonald's breakfast FAQs
How many calories are in a McDonald's Big Breakfast?
About 767 calories for the 269 g Big Breakfast, which works out to 285 calories per 100 g.
Is a McDonald's breakfast good for weight loss?
One Big Breakfast is 767 calories with 52.1 g fat and 47.1 g carbs, so it takes a large share of a 2,000 calorie day.
Big Breakfast or Deluxe Breakfast: which has more calories?
Both come to 285 calories per 100 g, but the Deluxe Breakfast is a bigger 420 g plate at 1197 calories against 767 for the 269 g Big Breakfast.
How much protein is in a McDonald's Big Breakfast?
About 27.3 g protein per Big Breakfast, or 10.2 g per 100 g, alongside 52.1 g fat.
How much sodium is in a McDonald's Big Breakfast?
A Big Breakfast has 1,477 mg of sodium, 64% of the daily value. The Deluxe Breakfast reaches 1,835 mg, or 80%. Per 100 g the meal carries 549 mg of sodium.
How many calories are in 100 g of McDonald's breakfast?
There are 285 calories in 100 g, based on USDA fast-food values for the Big Breakfast. That same 100 g holds 19.4 g of fat, 17.5 g of carbs and 10.2 g of protein.
How much fat is in a McDonald's Big Breakfast?
The Big Breakfast contains 52.1 g of fat, and fat supplies 61% of its calories. Saturated fat runs 6.4 g per 100 g. The Deluxe Breakfast has 64 g of fat in total.
How much sugar is in the McDonald's Deluxe Breakfast?
The Deluxe Breakfast has 41.5 g of sugars, compared with just 2.5 g in the Big Breakfast. It also carries far more carbs overall, at 123.8 g versus 47.1 g.
What happens if I eat two McDonald's Big Breakfasts?
Two Big Breakfasts come to 1,533 calories, 54.7 g of protein and 2,954 mg of sodium. That sodium figure alone is above the 2,300 mg daily value.
