Is McChicken no bun Keto?

The keto diet has become increasingly popular in recent years as a way to lose weight and improve health. The diet focuses on eating very low carb, high fat foods to reach a metabolic state called ketosis. But can you still eat fast food like McChicken while following keto?

McChicken is a simple chicken sandwich from McDonald’s, featuring a seasoned chicken patty, lettuce, and mayonnaise on a bun. Removing the bun makes this sandwich low carb, but is it keto-friendly? There are a few things to consider when determining if McChicken no bun fits into a ketogenic lifestyle.

What is Keto?

The ketogenic or “keto” diet is a very low carb, high fat, moderate protein diet. By restricting carbohydrate intake to around 5% or less of total daily calories, the body enters ketosis – burning fat for fuel instead of glucose from carbohydrates.

Some key points about keto diets:

– Carbs are restricted to 20-50 grams per day, sometimes even less.
– Protein intake is moderate, around 0.8-1.2 grams per pound of lean body mass.
– Fat makes up 70-80% of calorie intake.
– Being in ketosis generally requires eating less than 50 grams of net carbs per day.
– Ketosis encourages weight loss by depleting glycogen stores and burning fat for energy.
– Helps manage conditions like type 2 diabetes, metabolic syndrome, epilepsy, and more.

Transitioning to keto brings on several changes within the body. As carbs are restricted, the body releases stored glucose (glycogen). Once those stores are depleted, the liver produces ketones from fat. Ketones become the new fuel source for the body and brain. This metabolic state is called ketosis.

Keto Macronutrient Ratio

To achieve ketosis, the keto diet calls for a specific macronutrient ratio:

Macronutrient Percentage of Calories
Carbohydrates 5-10%
Protein 20-25%
Fat 70-80%

This translates to eating around:

– 20-50 grams of net carbs per day
– 0.8-1.2 grams of protein per pound of lean body mass
– 120-160 grams of fat (or more) per day

Net carbs are calculated by subtracting fiber from total carbs, as fiber does not affect blood sugar or ketosis.

Eating this ratio of macronutrients will encourage the body to switch to fat-burning mode and produce ketones for fuel.

Nutrition Facts for McChicken No Bun

Looking at the nutrition information for a bun-less McChicken can give us an idea of how keto-friendly it may be:

McChicken No Bun Nutrition Amount
Calories 380
Total Fat 23g
Saturated Fat 6g
Trans Fat 1.5g
Cholesterol 85mg
Sodium 830mg
Total Carbohydrates 6g
Dietary Fiber 2g
Sugars 3g
Protein 28g

With no bun, a McChicken sandwich contains:

– 380 calories
– 23g total fat (34% daily value)
– 6g saturated fat (30% DV)
– 1.5g trans fat
– 85mg cholesterol (28% DV)
– 830mg sodium (34% DV)
– 6g total carbohydrate (2% DV)
– 4g net carbs
– 28g protein (56% DV)

At only 4g of net carbs, a bun-less McChicken is low carb. But in order to determine if it fits a keto diet, we need to look at the complete nutritional profile.

Analyzing McChicken No Bun for Keto

Here are some key considerations when analyzing if McChicken without the bun can be part of a keto diet:

Fat Content

The keto diet is a high fat diet, with 70-80% of calories coming from fat. With 23g of fat, a McChicken no bun provides a significant amount of fat. It makes up about 65% of the calories in this sandwich.

Protein Content

Protein should be moderate on keto – around 0.6-0.8 grams per pound of lean body mass. The 28 grams of protein in a McChicken is a substantial amount at over 50% of the daily value. For some people, this could knock them out of ketosis.


At only 4g net carbs, this sandwich can easily fit into a keto diet plan. Even consuming a few McChickens a day would keep net carbs low enough for ketosis for most people.


While the macronutrients may look keto-friendly, some of the ingredients are less than optimal. The seasoned chicken patty contains fillers and binders. And the white flour tortilla has inflammatory oils. Whole, unprocessed foods are best on keto.

Sodium Content

The high sodium content from the chicken patty and condiments makes this sandwich less ideal. Too much sodium can lead to fluid retention, elevated blood pressure, and other issues.

Nutrient Density

McChicken is not very nutrient-dense – it provides protein but not much else. On keto, it’s important to maximize vitamin and mineral intake, as carb restriction can lead to deficiencies long-term. More nutrient-dense proteins would be better.

How Many Carbs in McChicken No Bun?

The major factor determining if McChicken no bun can be keto is the carb content. Here is a detailed look:

– Total carbohydrates: 6g
– Dietary fiber: 2g
– Sugars: 3g

To get net carbs:

Total Carbs – Dietary Fiber = Net Carbs


6g – 2g = 4g Net Carbs

This carb count falls within keto guidelines, even for most strict keto dieters. Consuming one McChicken without the bun would provide only 4g net carbs – leaving plenty of room for other low carb foods throughout the day.

The 4g net carbs come mostly from:

– Onions: 1g net carb
– Pickles: 1g net carb
– Sauce: 2g net carb

The protein patty and lettuce provide almost no net carbs.

Can You Eat McChicken No Bun on Keto?

Based on the nutrition facts and ingredients list, here is a summary of whether McChicken no bun can fit into a keto diet:


– Very low in net carbs (only 4g)
– Provides moderate protein (28g)
– High in fat (23g), about 65% of calories


– High in sodium (830mg)
– Contains processed ingredients
– Not nutrient-dense or high in vitamins/minerals
– High protein may be too much for some people

Overall, McChicken without the bun fits the macronutrient ratios for keto. Its very low net carb count makes it possible to eat on a keto diet, even every day if it fits within your daily carb limit.

However, this sandwich is highly processed and high in sodium, so it should not make up the bulk of your diet. Eating whole, nutrient-dense low carb foods optimizes health on keto. McChicken no bun can occasionally be fit in, but is best limited.

Some healthier options similar in nutrition would be:

– Grilled chicken breast or thigh
– Chicken salad or wraps made with low carb tortillas
– Lettuce-wrapped chicken sandwiches

When combined with fibrous low carb veggies and healthy fats, McChicken once in awhile can work with a well-formulated keto diet. But it shouldn’t be a daily staple.

How Many McChickens No Bun Per Day on Keto?

Since a McChicken no bun contains just 4g net carbs, even eating several per day could potentially fit into keto macros, depending on your total daily carb allowance.

For example, with a 20g per day net carb goal:

– Eating 5 McChickens no bun (4g carbs x 5 = 20g net carbs) would max out your daily limit.

With a 50g net carb goal:

– You could have around 12 McChickens no bun (4g x 12 = 48g net carbs).

However, just because you may be able to fit multiple McChickens into your macros doesn’t mean you necessarily should. Here are some factors to consider:

Sodium Content

At 830mg each, eating more than 1-2 McChickens per day would result in excessive sodium intake. Too much sodium often leads to fluid retention, elevated blood pressure, and kidney issues.

Nutritional Value

McChicken no bun is not very nutrient-dense. Eating several a day would provide a lot of fat and protein but not enough micronutrients. Not ideal for long term keto.

Processed Ingredients

Multiple McChickens in one day means consuming more preservatives, fillers, and inflammatory oils – not ideal for health.


McChicken alone may not keep you full for long compared to meals with veggies and complex carbs. You may end up eating more calories than intended.


Eating up to 5-12 McChickens a day would get very expensive compared to making your own keto meals. Money likely better spent elsewhere.

For best results on keto both with weight loss and overall health, limit McChicken no bun to 1-2 times per week max. There are much healthier keto options for hitting your daily protein intake!

Making McChicken Keto-Friendly

If you want to eat McChicken sandwiches on keto occasionally, there are some easy ways to modify it to make it healthier:

Lose the Mayo

The mayo adds extra fat and calories but not much nutrition. Ask for your sandwich without mayo or use a lower carb alternative like avocado.

Extra Lettuce

Add more lettuce for heft, fiber, and nutrients. Turn it into a chicken salad wrap.

Add Avocado

The healthy fats in avocado will make it more nutritient-dense. Can replace mayo.

Use Different Sauce

Opt for a lower sugar, lower sodium sauce or dressing like buffalo, mustard, ranch.

Ditch the Tortilla

Make it a lettuce wrap to further reduce carbs and get more veggie goodness.

Slice in Half

Reducing portion size means less calories, sodium, and fat to keep it occasional.

Making modifications like these improves the nutrition profile of McChicken no bun while keeping it low carb. It enhances any keto diet when kept to just once or twice a week.

Frequently Asked Questions

Can I eat McChicken on keto?

McChicken no bun can fit into a keto diet due to its low carb count of just 4g net carbs. However, it is high in sodium, fat, and calories without much nutrition. Eating a whole McChicken without the bun occasionally is fine, but not recommended as a regular option.

Is McChicken Keto without mayo?

Yes, removing the mayonnaise makes McChicken lower in calories and fat. It doesn’t change the carb count though – a McChicken no bun and no mayo still has 4g net carbs, so it can be keto.

Should I get McChicken with mayo on keto?

Mayo is keto-friendly but high in calories and unhealthy fats. Unless it fits your macros, get McChicken without mayo or switch to a healthier sauce like mustard or buffalo sauce.

Can I eat McChicken every day on keto?

It’s not recommended to eat McChicken no bun daily as it is highly processed and high in sodium. Limit to 1-2 times per week at most for best health on keto. Prioritize more nutritious proteins and fat sources.

Is McChicken lettuce wrap keto?

Yes, a McChicken lettuce wrap is low carb and keto-friendly. Wrapping the chicken in lettuce instead of a flour tortilla reduces carbs even further. Add veggies for a nutritious, delicious keto meal!

The Bottom Line

McChicken without the bun is low enough in net carbs to work with a ketogenic diet. Its high fat and moderate protein content also fits keto macros. However, it is best limited to an occasional option rather than every day due to the heavily processed ingredients, high sodium, and lack of nutrients.

When combined with nutritious veggies and healthy fats, an occasional McChicken no bun can be part of an overall balanced keto diet. Just don’t make it the focus of your meals. Prioritize whole foods low in carbs to maximize health benefits on keto.

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