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Low GI
McDonald's· all products

McDonald's Big Mac Calories

Iconic burger with two beef patties, special sauce, cheese, lettuce, pickles, onions, and sesame seed bun

CALORIES

257kcal

GI

39low

POTASSIUM

220mg

FIBER

1.7g

McDonald's Big Mac Nutrition Facts

Selected: 100 g

257

KCAL / 100G

Carbs

20.1g

· 31%

Protein

12.4g

· 19%

Fat

14.7g

· 50%

Fiber

1.7g

McDonald's Big Mac Vitamins & Minerals

Vitamins

B12

1.1µg · 46% DV

B3

3.8mg · 24% DV

Vitamin K

18µg · 15% DV

B2

0.18mg · 14% DV

Minerals

Selenium

18µg · 33% DV

Phosphorus

170mg · 24% DV

Sodium

430mg · 19% DV

Zinc

2mg · 18% DV

McDonald's Big Mac Glycemic Index

GLYCEMIC INDEX

39
Low
0 Low5570100

GLYCEMIC LOAD

11
Medium

Accounts for portion size — a more realistic measure than GI alone.

Is McDonald's Big Mac Processed?

NOVA 4

Ultra-Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does McDonald's Big Mac Contain Allergens?

Contains these allergens:

Gluten yes
Dairy yes
Eggs yes
Peanuts free
Tree nuts free
Fish free
Soy free
Sesame yes

Which Diets Is McDonald's Big Mac Good For?

Vegan

— Not suitable

Vegetarian

— Not suitable

Gluten-Free

— Not suitable

Dairy-Free

— Not suitable

Mediterranean

— Not suitable

Paleo

— Not suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

McDonald's Big Mac Fat Profile

SATURATED

5.1g

MONOUNSATURATED

5.6g

POLYUNSATURATED

1.8g

⚖️

Omega 6:3 ratio 32:1

Above the ideal 4:1 (32:1).

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McDonald's Big Mac — Frequently Asked Questions

What is the best way to reheat a McDonald's Big Mac?

For better texture, separate the burger first and warm the patties briefly in a pan or microwave, then heat the bun separately. Add the lettuce and pickles back afterward so they stay less wilted.

How long can a Big Mac sit out at room temperature?

A burger containing cooked meat and sauce should not be left at room temperature for more than two hours, and less time in hot conditions. Refrigerate leftovers as soon as possible.

Can you eat a Big Mac the next day?

Yes, if it was refrigerated promptly, it can generally be eaten the next day. Reheat the meat until thoroughly hot, and discard it if it smells off, feels slimy, or looks unusual.

Can a Big Mac be frozen?

It can be frozen, but lettuce, pickles, and sauce tend to become watery after thawing. Remove those ingredients and freeze the bun-and-patty portion in an airtight container for a better result.

What is a more balanced drink to have with a Big Mac?

Water, plain sparkling water, or an unsweetened drink are practical choices. Choosing one instead of a sugary beverage avoids adding extra sugar to the meal.

What should you have with a Big Mac to make the meal more balanced?

Choose a side salad, vegetables, or fruit instead of fries when possible. This adds more plant variety to the meal, while going easy on extra sauce can help keep it lighter.

Is a Big Mac better before or after a workout?

Right before exercise, a rich burger may feel heavy and cause stomach discomfort for some people. If eaten after training occasionally, pair it with water and make the rest of the day’s meals lighter and more produce-focused.

Does eating a Big Mac at night automatically cause weight gain?

No—weight change is driven more by overall eating patterns, portions, and activity than by the clock alone. However, a heavy meal close to bedtime can worsen reflux or indigestion in susceptible people.

Is a Big Mac always less healthy than a homemade burger?

Not necessarily; it depends on the homemade burger’s ingredients and portion size. Making one at home gives you more control over the amount of sauce, vegetables, and less-processed ingredients used.

Who should be especially careful with a Big Mac?

People with allergies to gluten, eggs, dairy, sesame, or mustard should check ingredients carefully and ask about possible cross-contact. Those prone to high blood pressure, reflux, or frequent indigestion may also benefit from limiting fast-food meals.

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Nutrition data compiled from USDA FoodData Central and scientific sources.