How Long To Lose 40 Pounds On Keto [Guide] - KetoConnect (2024)

If you google “how to lose 40 pounds fast,” you will get over 26 million results. But that isn’t what this article is about. Instead, we will give you a realistic timeline of how long to lose 40 pounds on keto safely and how to keep it off by living the keto lifestyle.

It is time to stop the yo-yo dieting and counting calories. This article will tell you how you can use the keto diet to lose 40 pounds, reach a healthy goal weight, burn fat, and have more energy.

Are you interested in finding out more? Keep reading.

How Long To Lose 40 Pounds On Keto [Guide] - KetoConnect (1)

Table of Contents hide

What is the Ketogenic Diet?

Isn’t Keto Just Another Low Carb Diet?

Why Counting Calories Doesn’t Help With Weight Loss

How Fast Can You Lose Weight on Keto?

Does Exercise Help You Lose Weight Faster?

The Ketogenic Lifestyle

Pitfalls to Avoid on a Keto Diet

Keto Recipes For You to Try

Conclusion

What is the Ketogenic Diet?

Most people think that the keto diet is just another new diet fad for weight loss. In fact, it has been around for about 100 years. It got its origins in the 1920s when physicians used the keto diet as aneffective treatment for epilepsy.

In simple terms, the keto diet is a high fat, moderate protein, low carb eating plan. Instead of eating carbs such as pasta, bread, or cereal, you will be eating nutrient-dense, high fat foods like avocados, heavy whipping cream, eggs, lunch meat, and healthy fats and oils.

You need to forget everything you’ve ever learned about the food pyramid, which promotes 10-12 servings of whole grains and only using oils sparingly. The“Western Diet”or Standard American Diet (SAD) is why two-thirds of adults and one-third of children in the United States are obese.

Why is that?

The body believes in efficiency and chooses to get its energy the quick and easy way. All carbohydrates convert into glucose, which the body uses for fuel. It never taps into the fat stores so it stays on the body.

But, you don’t need glucose for energy. When you cut off its quick fuel source, the body goes intoketosis, a natural metabolic state. That’s when your body turns to storage for energy. Plus, the liver also starts converting the fat into ketones which the brain uses for energy.

Isn’t Keto Just Another Low Carb Diet?

In a word, no. Keto is not just another low-carb diet. When people hear those words, they instantly think of the Atkins diet, and that’s understandable. However, while diets like Atkins do reduce the amount of carbs you eat, you are still eating more carbs than you would on keto.

In addition, as you get closer to your goal weight, the grams of carbs you can have increase. The higher carb amount kicks you out of ketosis; then you’re right where you started – you’re using the carbs for energy.

The keto diet breaks down yourmacronutrientsso that 70% of your calories come from fat, 20% come from protein, and only 10% come from carbs. The keto diet keeps you in a constant state of ketosis, so your body is using stored energy for fuel.

An app orketo calculatorcan help you break down your macronutrients so you know how many grams of each one you should be eating each day to reach your health goals.

Why Counting Calories Doesn’t Help With Weight Loss

For years you’ve been told that all you need to do to lose weight is eat fewer calories than you burn, so your body goes into a calorie deficit.

It didn’t work, did it?

Or, you lost weight, but it didn’t stay off. You would starve yourself, and before you knew it, you were binge eating, and soon, you gained back all the weight you lost, plus a few more pounds.

It felt like all your weight loss efforts were for nothing. It’s not your fault. You were working with the information you received. Unfortunately, that information was wrong.

Here are some of the reasons that counting calories doesn’t work:

  1. It’s impossible to have an exact standard when it comes to calories. The total calories listed on mostfood labelsare off by about 25%.
  2. Everyone has a unique gut biome. We all have microbes throughout our digestive system. Some of these microbes are more efficient in breaking down food and using it to support bodily functions. Studies have shown that thin people have different bacteria in their guts.
  3. Not all calories are created equal. A 200 calorie candy bar won’t fill you up like the same amount of calories in hard-boiled eggs. Soon after eating the candy bar, you will be looking for something else to eat because you’re still hungry. The eggs will take longer for your digestive system to break down, thus leaving you feeling fuller longer.

These are just a few reasons why trying to get yourself into a calorie deficit to lose weight doesn’t work.

Now, it’s time to look at something that does work.

How Long To Lose 40 Pounds On Keto [Guide] - KetoConnect (2)

How Fast Can You Lose Weight on Keto?

You can expect to lose 1-2 pounds each week on a strict keto diet, which is a healthy rate of weight loss. You may lose more in the first couple of weeks, but that is mainly the water weight you are shedding.

When it comes to your weight loss journey, there are a lot of factors to consider. What is your body composition? How much lean muscle do you have compared to body fat? You want plenty of lean muscle because it increases your metabolism and the number of calories you burn during resting energy expenditure (REE).

If you’re not sure what REE is, it is the number of calories you need just to stay alive. It accounts for more than60% of the caloriesyou burn in a day. So, the more lean muscle mass your body has, the more calories you use in the course of your daily life.

Your current body weight, how much weight you need to lose, age and activity level also determine how fast you will lose weight, but one of the main factors in the equation is gender.Men lose weight faster than womenin the beginning, but then it starts to equal out.

Why is that? Let’s find out.

Man vs. Woman

Every woman understands the frustration when you first start a weight loss program with your significant other. You’re both watching what you eat and exercising the same amount, but suddenly he’s dropping 5 pounds while you lose very little weight. Here’s why:

Since men have higher testosterone levels in their bodies, they can build lean muscle faster. We’ve already learned that more lean muscle mass means increased metabolism. On the other hand, women have more estrogen and tend to store more fat.

Another difference is where each gender usually stores its fat. Men keep most of their excess weight in the belly, so it’s more noticeable when he starts to trim down. Women store it all over, such as the belly, hips, and breasts.

And there aredifferent types of fat. Men have more visceral fat, and metabolism increases as the fat decreases. Women tend to have more of the subcutaneous type that does not influence metabolism.

But, as stated previously, it does start to even out, and both genders lose weight at the same pace. So, at a steady rate of losing 1-2 pounds each week, you can expect to lose 40 pounds in 5-6 months.

Does Exercise Help You Lose Weight Faster?

Strength training and cardiovascular exercise will speed up your weight loss. Weight lifting is a great way to build more lean muscle and help you lose more weight.

Exercising also helps you to stay in ketosis, increase your energy levels, and help you feel better overall.

Other Health Benefits of the Keto Diet

Most people start on the keto diet for weight loss. However, it has numerous otherhealth benefits.

  1. As stated previously, a keto diet has shown to be an effective epilepsy treatment. 50% of patients on keto saw improvement in the number of seizures.
  2. Insulin resistance is a condition found in pre-diabetic people. Some symptoms of this metabolic condition include a waist-to-hip ratio above 1.0, high blood pressure, high triglyceride levels, and elevated fasting blood sugar levels. A ketogenic diet, especially when combined with intermittent fasting, dramatically improves the body’s insulin response.
  3. Improved insulin levels in individuals with type 1 and 2 diabetes
  4. Healthy cholesterol levels increase

As you can see, a keto diet can improve your overall wellness in various ways, and healthy weight loss is a bonus.

How Long To Lose 40 Pounds On Keto [Guide] - KetoConnect (3)

The Ketogenic Lifestyle

When you firststart on your keto lifestyle, your body needs to adjust to reduced carbs and additional fats. Most people experience “keto flu” in the first few days as your body recovers from its sugar addiction. Another cause is an electrolyte imbalance.

With the decrease in carbs, more of your electrolytes leave your body when you urinate. You can reduce the symptoms of keto flu by increasing your water intake, and electrolytes such as sodium, potassium, and magnesium. Increasing your fat intake will also help you to feel better.

After a week, the symptoms pass, and you will start to see an improvement in how you feel. It takes about one month for you to become fully fat-adapted, where you will experience sustained energy levels, steady weight loss, and better overall health.

It’s vital to pay attention to your macronutrients, and you may be worried about your food choices and knowing how much fat, how many carbs, and your protein intake. A keto macro calculator will allow you to put in your information and give you your normal range for macronutrients that day.

Feel free to read our comprehensive guide on the ketogenic diet where you can find everything you need to know about the keto diet, including how to start and what to eat.

Pitfalls to Avoid on a Keto Diet

Too much protein: You need protein to increase satiety and build lean muscle. But, some people make the mistake of eating too much, thinking it will lead to greater weight loss. However, the opposite happens because the amino acids in the excess protein convert to glucose, which kicks the body out of ketosis.

Too low fat: There are some people that still think fat is bad and are afraid to increase their intake. However, without the carbs for quick energy, the body needs the fat for ketosis and weight loss to occur.

Not Enough Water: Staying hydrated is essential to losing weight. You need water to flush out toxins and replenish your blood cells. If you become dehydrated, metabolism and fat loss slows.

Snacking too much: Nuts, seeds, dark chocolate, and berries are easy to binge eat. However, eating too many of these foods will result in excess calories and keep you from losing weight.

Keto Recipes For You to Try

There are several great recipes to enjoy when you are on a keto diet. Here are some of our favorites for you to try.

  • Classic Keto Waffles
  • Keto Pumpkin Soup
  • Keto Pizza
  • Keto Chocolate Chip Cookies
  • Keto Meal Replacement Shakes
  • Keto Margarita

Conclusion

With a rate of weight loss of 1-2 pounds each week, about 5-6 months is how long to lose 40 pounds on keto. There are other diets to help you lose 40 pounds fast. But, most of them aren’t sustainable for the long term. While the keto diet might not be the best diet for everyone, most people experience steady weight loss and enjoy better health.

Living a keto life isn’t truly a diet plan, but instead a healthy lifestyle. You will lose fat, while at the same time, improving insulin levels, lowering bad cholesterol, and increasing energy.

For more help on reaching your fat loss goals, KetoConnect gives you all the guidance you need on how to get started, grocery guides, and recipes. They also have plenty of tips if you’re not getting the keto diet results that you expect.

So, now that you know how long to lose 40 pounds on keto, what are you waiting for? It’s time to start on your keto journey to lose weight and feel better.

How Long To Lose 40 Pounds On Keto [Guide] - KetoConnect (4)

Written by

How Long To Lose 40 Pounds On Keto [Guide] - KetoConnect (5)

Matt Gaedke

Matt is a former college basketball player turned computer engineer who discovered his passion for health and nutrition after cutting sugar from his diet in 2016. That year he founded KetoConnect with Megha in order to share their ketogenic lifestyle through recipes, videos, and educational content. Matt is always seeking to grow and try new things, a passion he shares with his wife and two amazing sons.

How Long To Lose 40 Pounds On Keto [Guide] - KetoConnect (2024)

FAQs

How long will it take me to lose 40 pounds on keto? ›

The pace will slow down eventually, and you can expect 4 to 10 pounds a month of burned fat while sticking to Keto. That means you can largely expect to lose 40 pounds in the same 4-5 months as on average.

How long will it take me to lose 40 pounds? ›

It takes about 4 to 5 months to lose 40 pounds. A safe healthy and realistic weight loss is about 1 to 2 pounds per week. The only way to lose weight is you need to be in a caloric deficit and that means burning more calories than you consume. One pound of fat is equal to 3500 calories.

How long to lose 50 pounds on a keto diet? ›

Everything I did to lose weight (50 pounds in 6 months!) by eating clean keto. Includes keto recipes and foods to avoid, every meal I ate, info on intermittent fasting, my exercise routine, keto faq, and more! If you're looking to start the keto diet, this is an easy, quick start guide with all your questions answered!

How many pounds can I lose in 3 months on keto? ›

“If the patient can maintain a steady calorie deficit, I expect them to lose one to two pounds per week,” says Dr. Seeman. So after 12 weeks, her clients are usually down around 20-25 pounds. She adds, however, that this is very patient-specific and would depend on their initial body fat percentage.

How to speed up weight loss in ketosis? ›

Limit your daily carb intake to 20-50 grams, as this will help your body enter a state of ketosis and start burning fat for energy. Consume more healthy fats and protein to help keep you full and satisfied throughout the day, which can also prevent overeating and cravings.

What happens to your body when you lose 40 pounds? ›

Health benefits of losing 40 pounds of fat, such as reduced risk of heart disease, diabetes, and high blood pressure. Improved mobility and reduced joint pain due to decreased pressure on the joints. Increased energy levels and improved sleep quality.

How much walking do I need to do to lose 40 pounds? ›

In terms of how the type of walking you need to do to lose weight, a brisk pace is recommended. Walking for 30-90 minutes several days each week will help you to lose weight. Walking at a brisk walking pace for 30 minutes typically results in a distance walked of 1.5-2 miles or 3,000-4,500 steps.

Is 40 lbs weight loss noticeable? ›

Yes, it can be. Weight loss doesn't always have to be noticeable while on the scale. You can notice 40 lbs weight loss change through your facial appearance (slimmer face), the fit of your clothes (what was snug before feels looser), and lost inches on the hips, thighs, arms, and waist.

How to lose 40lbs fast? ›

Lose 40lbs in five months: Maryam's 'lazy girl' tips on transforming your body
  1. Create a calorie deficit.
  2. Drink 60 ounces of water.
  3. Start a strength training program.
  4. Do 10,000 steps daily.
  5. Get seven to nine hours of sleep.
  6. Have an 'abundance mindset'
  7. Take rest days.
Oct 26, 2023

What is the average weight loss timeline for keto? ›

If a person follows the 75% fat /20% carb/5% fat keto diet, average results may look like this:
  • Weeks 1–2: rapid weight reduction phase due to water loss – up to ten pounds.
  • Weeks 2–4: standard weight reduction – between one and two pounds per week.
  • After the first month – slow weight loss – around one pound per week.
Mar 6, 2022

How fast can I lose 60 pounds on keto? ›

Fortunately, he decided to try something very different and went on the keto diet. “I lost 60 pounds (27 kilos) and normalized my blood-sugar levels in just 100 days. My blood markers are still improving and I've been able to reduce my medications,” Jim says.

What is the 30 30 30 rule for weight loss? ›

The 30-30-30 rule involves eating 30 grams of protein within 30 minutes of waking up, followed by 30 minutes of low-intensity, steady state cardiovascular exercise. Beyond these steps, the 30-30-30 method doesn't require any changes to other meals or behaviors, restrictions or counting calories.

What happens if I eat no carbs for a month? ›

Severe carb limits can cause your body to break down fat into ketones for energy. This is called ketosis. Ketosis can cause side effects such as bad breath, headache, fatigue and weakness.

How long can you stay in ketosis safely? ›

Gulotta recommends staying on keto for six months max before reintroducing more carbs to your diet. And Scott Keatley, RDN, of Keatley Medical Nutrition Therapy in New York City, agrees: “The science hasn't gotten to the point where I would be comfortable recommending it as a forever diet,” he says.

How much weight can I lose in 8 weeks on keto? ›

The keto diet changes the way your metabolism works by encouraging it to use ketone bodies instead of glucose for energy production. In the first couple of weeks, it's possible to lose up to ten pounds. After that, you could be losing one to two pounds per week.

How fast can I lose 30 pounds on keto? ›

Taking the time to make real changes in your daily routine will make this the best diet to lose 30 lbs. If you're looking to lose 30lbs in 3 months without exercise, it's possible with the keto diet. If you add in some exercise, you'll really set your weight loss on fire.

Can I lose 40 pounds in 3 months? ›

To shed 40 pounds in three months, you would need to lose a little over 13 pounds per month. That's a weekly deficit of about 11,375 calories, which is 1,625 calories per day. Not only does this far exceed the maximum recommended calorie deficit, it's more than most people burn on an active day.

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