BreakfastMcDonald's
Egg McMuffin
Egg McMuffin with black coffee or water.
310 Calaudited estimate
Primary sourceFast food, slower weight loss
How to lose weight while eating McDonald's
Keep the restaurant you know. Set your goal, then build a McDonald's day around an estimated calorie target instead of guessing at each order.
Today1,743 CalReference example
The short answer
Can you lose weight eating only McDonald's?
A calorie deficit can lead to weight loss even when McDonald's is the restaurant you use most often. The daily total still has to fit your needs, including fries, drinks, sauces, snacks, and anything eaten away from the restaurant. See the CDC's weight-loss guidance.
The calculator below starts with McDonald's selected. Personalize the target, shuffle complete days, or use the arrows to compare another McDonald's order. The estimate uses the profile and goal you enter; it is not a promise that a particular plan will produce an exact result.
It's simple, just eat like this for 6 months and lose 12 lbs.*
*Uses the Mifflin-St Jeor equation, your selected activity and a 3,500-Calorie-per-pound planning approximation. Actual weight change varies.
LunchMcDonald's
McChicken Meal
McChicken, small fries, water or diet drink.
620 Calaudited estimate
Primary source
DinnerMcDonald's
Big Mac Meal
Big Mac, small fries, water or diet drink.
810 Calaudited estimate
Primary sourceMeal details1 of 3
BreakfastMcDonald's
Egg McMuffin
Egg McMuffin with black coffee or water.
310 CalLunchMcDonald's
McChicken Meal
McChicken, small fries, water or diet drink.
620 CalDinnerMcDonald's
Big Mac Meal
Big Mac, small fries, water or diet drink.
810 CalCycles until you tap, focus or swipe. Then it stays under your control.
Shown plan1,740 Cal
Preferred meal range1,618 Cal - 1,868 Cal
Timeline6 months
How this calorie target is calculated
- Basis
- Mifflin-St Jeor resting energy estimate x activity factor; Light activity (1-3 days/week) (1.375)
- Total daily target
- 1,743 Cal
- Meal budget after extras
- 1,743 Cal
- Planned deficit
- 230 Cal/day
Resting estimate 1,435 Cal; maintenance estimate 1,973 Cal. No extra snack calories are reserved.
Read the calculation method and limitsPlanning estimate
Estimated weight over 6 months
Shown meals total 1,740 Cal per day. Estimated weight changes from 172 lb to 160 lb over 6 months.
- Start: 172 lb
- Month 1: 170 lb
- Month 2: 167.9 lb
- Month 3: 165.9 lb
- Month 4: 163.9 lb
- Month 5: 161.9 lb
- Month 6: 160 lb
Chains
McDonald's plans only
Every meal suggestion on this page stays at McDonald's.
Build a mixed-chain planProfile
Adjust the picks
Sources
FDA: Calories on the Nutrition Facts LabelCDC: Steps for Losing WeightCDC/NCHS: U.S. adult body measurements, August 2021-August 2023PubMed: Mifflin-St Jeor resting energy equationMcDonald's Egg McMuffin nutritionMcDonald's McChicken nutritionMcDonald's U.S. nutrition calculatorMcDonald's Big Mac nutrition
Each meal card shows its component math, source links, U.S. market and review date. Restaurant menus can still vary by location, recipe, size and customization. This is informational only, not medical advice.
Ordering strategy
How to plan a full day at McDonald's
McDonald's lists sandwiches and full meals separately, so decide which one you are ordering before comparing calories. A sandwich-only lunch leaves a different amount for dinner than the same sandwich with fries and a drink.
Choose sandwich or meal
Match the calculator card to the order you will actually place. Do not count a sandwich-only listing if you plan to add fries.
Count the drink
Water, black coffee, diet drinks, and sugar-sweetened drinks do not have the same calorie total. Keep the selected drink consistent with your order.
Plan the whole day
Use a lighter order when you want more room for another meal, or choose a larger order and let the remaining meals adjust around it.
Audited examples
McDonald's breakfast, lunch, and dinner ideas
BreakfastMcDonald's
Egg McMuffin Meal
Egg McMuffin, Hash Browns, black coffee or water.
450 Calaudited estimate
Primary source
LunchMcDonald's
Filet-O-Fish Meal
Filet-O-Fish, small fries, water or diet drink.
610 Calaudited estimate
Primary sourceDinnerMcDonald's
Big Mac Meal
Big Mac, small fries, water or diet drink.
810 Calaudited estimate
Primary sourceThese are starting points, not a required menu. Open "See calorie math and sources" on any card to review the components behind its total.
What the total does not measure
Eating only McDonald's versus eating there often
A McDonald's-only calorie total does not show whether the day provides enough fiber, fruit, vegetables, or other nutrients. If McDonald's is part of your regular routine, vary the menu choices and include foods from other sources when you can. NIDDK's healthy-eating guidance describes the food-group variety included in a healthy eating plan.
The calculator estimates calories; it does not assess sodium, fiber, vitamins, allergies, medication, pregnancy, eating-disorder risk, or whether a target is appropriate for you. A clinician or registered dietitian can help if your food choices are restricted or you have a medical nutrition need.
Where the numbers come from
Meal totals are assembled from published U.S. restaurant nutrition information. Review the McDonald's U.S. nutrition calculator, read the site's calculator and meal-selection methodology, or check the nutrition data and corrections policy.