Wednesday, March 27, 2024
HomeKetoHow To Do Keto Fasting

How To Do Keto Fasting

- Advertisment -

Acetone And The Breath Test

How To Do Intermittent Fasting On Keto | Helpful Tips

Acetone is found in your breath, and studies have confirmed testing acetone breath levels is a reliable way to monitor ketosis in people following ketogenic diets .

The Ketonix meter measures acetone in your breath. After breathing into the meter, a color flashes to indicate whether youre in ketosis and how high your levels are.

Maintain Adequate Protein Intake

Achieving ketosis requires a protein intake thats adequate but not excessive.

The classic ketogenic diet used in people with epilepsy restricts both carbs and protein to maximize ketone levels.

The same diet may also be beneficial for people with cancer, as it may limit tumor growth .

However, for most people, drastically cutting their protein intake to increase ketone production isnt a healthy practice.

First, its important to consume enough protein to supply the liver with amino acids that can be used for gluconeogenesis, or making glucose .

In this process, your liver provides glucose for the few cells and organs in your body that cant use ketones as fuel, such as your red blood cells and portions of your kidneys and brain .

Second, protein intake should be high enough to maintain muscle mass when carb intake is low, especially during weight loss.

Although losing weight typically results in the loss of both muscle and fat, consuming sufficient amounts of protein on a very low carb ketogenic diet can help preserve muscle mass .

Several studies have shown that the preservation of muscle mass and physical performance is maximized when protein intake is in the range of 0.550.77 grams per pound of lean mass .

A daily protein intake of 0.450.68 grams per pound will help you maintain lean mass while losing weight .

In weight loss studies, very low carb diets with protein intake within this range have been found to induce and maintain ketosis .

Additional Tips For Your Success

Many people achieve the best results by starting the ketogenic diet first and then beginning intermittent fasting several weeks later. Although this is a bit different from the classic approach to the keto-intermittent fasting diet, it works better for some individuals. This is because intermittent fasting, as previously mentioned, should be a natural process, during which you should not feel deprived and hungry.

Recommended Reading: What Can You Eat With Intermittent Fasting

Enough Story Time Lets See The Extended Fast Stats

If youve read my other blog posts youll know that Im all about the numbers. My standard is to share weight evolution, Ketones, Glucose, Glucose Ketone Index and Macros. For this one Ill also share my Fat loss and impact on Muscle and Water as per my Renpho SmartScale.

Weight first. Incredible weight loss for me that reflects my super flat tummy. Now to see how that evolves beyond refeeding for a week. A lot of weight loss is usually water weight due to reduces inflammation which you will regain as you eat inflammatory foods again.

I also want to share the Body Fat Loss, Body Water evolution and Skeletal Muscle gain. This really shows how being in deep Ketosis will melt the fat! To get these stats, all you need is a Renpho Smart Scale that are available as low as $19. You can get 10% off with code KETOANYWHERE10 on the Renpho site or .

I also measured my level of Ketosis, Glucose and the resulting Glucose Keto Index . This one was a highlight. On Day 4 my level of Ketosis was SO high that the Keto-Mojo could NOT measure it. It was literally off the charts!!

If youre not sure how to interpret the above, do not worry. Here are some great infographics from Keto-Mojo whose measuring device Im using:

Level of Ketosis – Yellow Line in my chart above. The higher the better

Glucose levels. Black line in my chart above. The lower the better.

Glucose Ketone Index. Grey line in my chart. The lower the better

Set A Clear Goal For Your Extended Fast And Track

Fasting on Keto

What do I mean by a clear goal? Define how many hours you want to achieve. If you have an accountability buddy or family member living with your or friend, tell them!

I – as part of the group of people I did this with – let myself be talked into 48 hours as a goal. YesI really did not think I could do it. I thought 36 hours was doable. Basically a day and adding a nights sleep but as youll see further on I was able to keep going.

I told my family I was going to be fasting for 48 hours to which my 7 year old asked whether that meant I was going to be hangry for 2 days lol I thought I would be, but again as youll see below. I wasnt.

As for tracking: I thought I would not need this. Hey, I can read time after all. But as I went beyond 24 hours it was really satisfying to see that tracker tell me how many hours I had fasted.

The Zero app was recommended to me and I have to agree that its very simple, easy to set up and perfect to show progress. You can also log your mood and feelings and I was very happy to see the hours go buy as I checked it.

Also Check: What To Eat When 16 8 Fasting

Improved Blood Sugar Control And Insulin Sensitivity

By giving your body an occasional break from calorie consumption, you can also help improve blood sugar levels and enhance the insulin sensitivity of your cells. One clinical trial found that intermittent fasting may even be a better strategy than maintaining the same calorie deficit with six meals per day.

When combined with the keto diet which also has been found to help with insulin resistance and type 2 diabetes the two dietary strategies may work synergistically for improving blood sugar control. However, more research is needed on the effects of using them in tandem.

You Can Try The Intermittent Fasting And Keto Day Plan Following The 1: 8 If Protocol:

6:00 am Water and/or black coffee

9:00 am Coffee if low on energy

12:00 pm 8 oz chicken breast, salad with olive oil dressing and feta cheese

3:00 pm Handful of almonds and blueberries

6:00 pm 8 oz fish with veggies

8:00 pm Nuts or blueberries

Hugh Jackman and Jennifer Aniston are two of the many celebs who follow the 16:8 intermittent fasting protocol. You can change up a few items above if you want. Or you can just kick off with this plan right away.

Some good keto foods to eat while doing an intermittent fast are those high in fiber and protein, so dont be afraid to enjoy a nice steak with tons of steamed broccoli. Both fiber and protein will keep you full longer without stuffing you with calories and fat.

Don’t Miss: How To Use Intermittent Fasting To Lose Weight

Ready To Try Keto Intermittent Fasting

Have you ever found yourself starting a new diet and being super excited about it, yet quitting it after a couple of days as it was too difficult to follow?

Figuring out things on your own can be very confusing, in particular when it comes to knowing exactly what to eat and when to eat. Also, most of us need external support to push us along the way, especially when things get hard and you feel like: I cant do this anymore.

Our 21-Day Keto Intermittent Fasting Challenge has helped hundreds of people to lose weight and reach the weight results they were looking for . All in a super-easy way, with all you need to know put easily in front of you every day.

More on Intermittent Fasting


In some articles, we include products we think are useful for our readers. When you buy through these links on our site, we may earn an affiliate commission at no cost to you. Read more here.

Information on this document and our website is for educational and informational purposes only. You should not rely on this information as a substitute, nor does it replace professional medical advice, diagnosis, or treatment.

If you have any concerns or questions about your health, you should always consult with a dietitian, physician or another health-care professional. Consult your physician before starting intermittent fasting, especially if you are pregnant, breastfeeding, have any medical condition, or are taking any medication. Read more here.

There Are Some Potential Downsides To Combining Keto And If

How Long Should I Do Keto & Intermittent Fasting? Dr.Berg

First, understand that keto is essentially focused on weight loss, not overall health, and that intermittent fasting doesnt change this. Keto can be unhealthy if youre doing it wrong, despite combining it with IF.

For instance, a keto diet thats mostly butter and bacon is different than one thats high in olive oil and avocado. A poorly planned keto diet with IF can result in nutritional deficiencies because intermittent fasting significantly cuts calories.

Combining keto and intermittent fasting can also affect athletic performance. So if youre into sports, your performance in the game might take a hit as you combine the two dieting methods.

Moreover, this combination is riskier for some people than others. Its best for the following people to avoid combining keto and intermittent fasting:

  • Pregnant and breastfeeding women. Some new mothers might be impatient to shed the baby weight but producing milk requires considerable energy.
  • Kids under 18 years old. The growing age is where they should be able to eat when they feel like eating.
  • People over 65 years old. They probably have difficulty getting enough calories and nutrients as it is.
  • People with a nutritional deficiency and those who need to take their meds with food.
  • People who have had or currently have any eating disorder.
  • People with certain health conditions like heart disease or diabetes should first consult a physician before fasting on keto.

Also Check: Does Intermittent Fasting Help With Weight Loss

How Intermittent Fasting Works

Intermittent fasting is the method of cycling between periods of fasting and eating. When you increase the time between mealswhat is known as a fasting windowyou force your body to rely on stored fuel for energy. Burning that stored fuel can help your body manage weight, stabilize blood sugar, and improve metabolism, among other benefits. Read more about.

While there can be benefits and the science behind IF is growing, it is still a somewhat controversial approach and is not recommended for those with eating disorders or those who are pregnant or nursing. As with starting any new diet or exercise routine, consult with your doctor or healthcare provider for guidance on whether intermittent fasting is right for you.

Intermittent Fasting For Superior Mental Performance

At least in some promising animal studies, intermittent fasting improves cognitive function and helps boost brain power.

As mentioned earlier, IF induces autophagy. This includes neuronal autophagy in your brain and central nervous system, which allows your brain cells to recycle and repair themselves for optimal function.

Studies suggest that disruption of neuronal autophagy can lead to neurodegeneration, causing your brain to function insufficiently and prevent you from performing at your full potential.

In contrast, the absence of food during fast periods promotes neuronal autophagy, leading to better cognitive outcomes.

Intermittent fasting also increases a protein in the brain called brain-derived neurotrophic factor .

This protein interacts with the parts of your brain that control learning, memory and cognitive function. Animal studies suggest BDNF helps protect brain cells and even stimulates the growth of new ones

IF also triggers ketogenesis or ketosis, where your body turns to fat for energy, metabolizing fat into ketones. Ketones easily cross the blood-brain-barrier, feeding your brain and resulting in better mental acuity, energy, and productivity.

Combined with a well-formulated whole-foods diet, IF avoids the blood sugar spikes caused by a high carb diet, which leads to brain fog and low mood issues like depression.

Also Check: What Do I Eat When Intermittent Fasting

Keep Up Your Water Intake

During the non-feeding period, make sure you keep yourself hydrated by drinking a higher amount of water.

The rule of intermeeting fasting is not extended to water intake.

Hence, you can drink as much as water you want during the feeding as well as non-feeding period. No restrictions applied here!

This will prevent fatigue and keep you energetic throughout the day.

Is It Safe To Enter Ketosis In 24 Hours

Keto Diet Tips: 18 Essential Tips for Success on the ...

I speak from personal experience when I say you should be fine. I will simply suggest that you follow the tips below to help you to avoid carb withdrawal symptoms aka the keto flu.

As your body switches over from carb to fat for energy, youre likely to have these side effects but it can be totally avoided if youre strict on your regimen.

Remember ketosis is simply a metabolic state and so trying to get there quickly will not harm the body.

Don’t Miss: How To Lose Weight Fast While Intermittent Fasting

Does Fasting Allow You To Enter Ketosis Faster

Youre certainly interested in ketosis, as the keto diet seems like it can be largely advantageous for your health. How long will it take you to enter ketosis if youre adhering to a low-carb diet?

It can be a while, anywhere from two to seven days depending on what youre eating. A week can be a long time to go without carbs, but fortunately, you can accelerate the amount of time it takes to enter a ketogenic state.

Here are some methods you can use:

What about if you go on an intermittent fast while following the keto diet? Is it possible to speed up the amount of time it takes you to enter ketosis that way?

Yes, it is. Intermittent fasting allows you to consume some food depending on the type of fast youre on. With alternate-day fasts, you spend 24 hours fasting then the next 24 hours eating, in this case, abiding by the keto diet.

On the 16:8 fast or some variation thereof, you spend 16 hours fasting and another eight hours eating. The 5:2 diet requires you to cut your calories to no more than 600 calories a day twice a week. Then youd spend the other five days eating more regularly.

You dont necessarily have to dedicate yourself to a particularly long fast to speed up ketosis. Short-term fasting for a few hours at a time, even between meals, can put you into a state of ketosis faster than eating continuously.

If you find thats not the case for you, then you can fast for periods of 24 to 48 hours, typically with a doctors approval, when on the keto diet.

Why Get Into Ketosis Quickly

If you read my last post , youll know about my little indiscretion

I was desperately looking for a way to get back into ketosis quickly. I had been eating Keto for several years.

I had been suffering out of ketosis since indulging in some Oreos.

Ok, it was a whole packet of Oreos.

No one is perfect, but this was a ridiculous binge that had absolutely no benefit to me.

After researching all the different methods on how to speed up getting into keto, there were lots of different methods but some sounded a little far fetched or involved crazy supplements, shakes or pills.

No thanks! I knew I had to find my own way to get back into ketosis as quickly as possible.

You dont need pills or supplements to get into Ketosis.

When youve been fat adapted for a few months or even years, your body WANTS to get back into keto quickly.

If you want to get into ketosis fast it can be tough, because you are used to being motivated and full of energy, and suddenly it seems like you will never be able to pull yourself out of this pit of chocolate and Netflix bingeing.

Well, drag that sorry butt off the couch and get into Ketosis again to get all the energy back in no time!

These tips also work for those wanting to speed up the initial transition into ketosis, but keep in mind being in ketosis is NOT the same as being fat adapted.

If you are already fat adapted and have slipped out as I did, this is how I get back into ketosis.

Don’t Miss: What Can You Eat When You Do Intermittent Fasting

Ready To Start Your Keto Diet

If youre still unsure about how to eat, what to eat or what to avoid, dont worry youre not alone! There is a little-known diet system called The 28-Day Keto Challenge which will teach you everything you need to know and guide you through your first month. Getting that in check will increase your metabolism and allow you to shed weight and shed it fast.

Women who have followed The 28-Day Keto Challenge reported losing up to 21 pounds and 2-4 inches from their waist in just a matter of 4 weeksthe methods in The 28-Day Keto Challengeare all backed by science.

Check out this video on The 28-Day Keto Challenge now to learn more about how to follow the dietand lose weight and improve your life in 28 days.

Increased Insulin Sensitivity And Decreased Blood Sugar


When you engage in keto diet fasting, your body naturally produces less insulin. Thats because youre not constantly pumping your body with carbs or excess food.

Lower insulin levels are associated with decreased risk for major health diseases, like diabetes. With the CDC now indicating that nearly 10% of Americans have diabetes, we appear to be more at risk for this chronic condition than ever before.

Many doctors working with diabetic patients recommend ketosis and fasting for reducing insulin dysfunction.

Recommended Reading: What’s Better Intermittent Fasting Or Keto

How Intermittent Fasting Works: Insulin Reduction Ketone Production And Autophagy Induction

From a weight-loss perspective, intermittent fasting works by making it harder to overeat throughout the day. A simple rule like skip breakfast or only eat between 5 pm and 8 pm, can help prevent you from reaching for snacks or drinking calorie-dense beverages throughout the day that contribute to weight gain.

Even if you do build up a ferocious appetite while fasting, youll still find it difficult to overeat. In fact, intermittent fasting tends to decrease daily energy consumption and promote fat loss.

This means that you may be able to eat as much as you want and reach your goals as long as you stick to a shortened eating window or a limited number of meals.

When you first try intermittent fasting, your body will need to adjust itself to this new eating schedule. You may be hit hard by hunger pangs and potent cravings at first, but they will soon dissipate as your cells feast on stored fat and ketones.

The key mechanisms behind your ability to fast, lose fat, and improve your health throughout the process are insulin reduction, ketone production, and autophagy. As we accumulate time in a fasted state, our insulin levels decrease incrementally. This promotes the release of fat from our fat cells and stimulates the ketone-producing process known as ketogenesis.

As you continue your fast, youll enter a deeper state of ketosis, become more efficient at burning fat, and ramp up the self-cleaning process known as autophagy.

- Advertisment -

Most Popular

- Advertisment -