Skip to Content

How to Get into Ketosis FAST (Under 4 Days): Quickest Plan

Please share:

Original Post: 2017 – Updated on December 31st, 2020

Below you’ll find an exact Plan to Get in Ketosis Fast. Note: it is highly likely you’ll be in Ketosis much faster than 5 days… stick to the plan either way.

If you’ve read about the Keto Diet and are interested in getting into Ketosis quickly this post will help you understand exactly what you can do. If you’re unsure about what the Keto Diet is read this first.

The first time attempting the Keto Diet I hated it. I was tired (I don’t often feel tired) and my stomach was (rolling / gurgling / angry) the whole time. I lasted one week for my first attempt and I felt miserable! Guess what, I did it wrong. Let’s avoid that…

Before you start / what to know.

Understanding Ketones

Most people are sugar burners (you eat loads of carbs and they in turn create blood sugar and help to keep you going).

Your body’s cells are powered by an energy molecule called ATP (Adenosine triphosphate), this is made by using glucose (blood sugar).

Ketosis is different – When your body is in Ketosis, your liver creates molecules called ketone bodies. These Ketone bodies are typically produced when glucose is not available as a fuel source.

Getting into Ketosis means your body has to use more energy (utilize and burn fat).

Removing the Glycogen Stores

When you reduce your Glycogen stores, your body is forced to use your fat for energy (or dietary fat – what you eat).

Transition & Testing

You’re going to have to be “all in” – don’t try Keto unless you’re willing to give it all you’ve got. You’re going to need to deplete glycogen stores, and the faster you can do this the better you’re going to feel.

Your body is going to transition from being a sugar burner to being a fat burner, noice. However, you might feel lethargic, have cramps, be irritable, and get headaches. You’re transitioning, did you think it would be easy to just switch up your body’s routine? Sorry but no, the vast majority will struggle at first. But it’s okay, this is transition is natural and things are going to get much better if you follow these steps!

How will I know I’m in Ketosis?

Pee strips are going to help at first. We’ve found that they have a shelf life. Don’t buy them if you’re not ready.

Note: the test strips are only good to see what you’re peeing out, that’s it. Testing blood ketone levels is MUCH more effective and more expensive too. It’s not necessary but it’s useful at the start. Long term, don’t bother.

After your initial entry in to ketosis and this new way of eating, tracking blood sugar is much more impactful. I’ve got 2 blog posts that will illustrate how important tracking blood sugar is:

Let’s talk about fasting…

Intermittent Fasting

IF (or Intermittent Fasting) is the avoidance of calorie consumption over an extended period of time. Typically this time allows an 8-12 hour window each day for calorie consumption. Some people practice OMAD (one meal a day) – which provides them with an eating window of 1-2 hours. Everyone is different, don’t stress over this – select a plan that’s reasonable and stick to it. More in a bit…

Intermittent fasting is a powerful tool in relation to ketosis.

In 2016, the Noble Prize in Physiology / Medicine was given to Yoshinori Ohsumi for discovering some of the mechanisms of autophagy – the orderly degradation and recycling of cellular components.  

When the cells undergo the process of autophagy:

  • Damaged proteins: removed / recycled
  • Invading microorganisms: removed
  • Toxic compounds: removed.

Broken down in understandable terms, this means: you’re slowing the aging process, reversing disease, and helping to prevent cancer. The problem for most is that it doesn’t happen all the time because you’re always eating. The constant intake of food is thwarting the process. That’s right, I used the word thwarting.

Fasting, protein restriction, and carbohydrate restriction are the three main ways to initiate the autophagic processes via diet. This is one reason highlighting why the ketogenic might be the right therapeutic change your body needs.

Finally…

How to Get in Ketosis Fast

The following section is going to layout point by point what we’ve tested and found very successful. This particular guide is not a meal plan. It’s an outline for what works to get into lasting Ketosis (and do it quickly).

How to Get in Ketosis Fast

The Right Keto Plan

Tip (before you even get started)DRINK WATER. You’re going to be fasting but that doesn’t mean you’re not going to drink water. You’re going to drink a lot of water. Keto is a natural diuretic – this means you’re going to pee a lot and lose water weight.

During the hours you’re fasting you’re also going to need to increase your electrolyte intake (sodium, magnesium, potassium). Best Option: cardnl’s Salty Lemon Twist electrolytes. Read about how to pick the right electrolyte blend.

When you drastically reduce your carb intake your insulin-levels decrease and your kidneys release more salt than when you were eating a bunch of carbs. You’re reducing your insulin levels while getting into Ketosis (when you eat carbs your insulin levels rise); salt is not getting properly released by the body and you’re not optimally healthy. Thanks a lot, carbs!

During this initial phase when getting into Ketosis you’ve got to up the: Water, Calcium, Magnesium, Sodium, & Potassium intake. Naturally, your salt cycle will restore and your body is going to properly thank you. You feel so much better!

Balancing electrolytes is the biggest supplement game changer I’ve experienced.

Consume Exogenous Ketones at the Start

This section was originally written here (in this post) – How to boost energy on Keto.

WHEN I REFER TO KETONES BELOW – KNOW THIS:

Exogenous means: you consume it. Endogenous means: it’s naturally created in your body.

When you limit carbs, or fast, your body will produce energy via ketones. If you’re starting the keto diet, it’s a great time to introduce exogenous ketones. This process is kinda like you making the introduction to your body: “oh hey, these are my friends, Ketones. I think you guys will really get along.”

You can also supplement with ketones when you’re in need of more energy. Combining ketone consumption and carbs may provide a frenzied energy boost for game or race day. If your body is used to endogenously providing energy for all your daily needs, a boost on the day you really need it, might make you feel amazing! Who doesn’t want that?

I do not recommend regular ketone consumption. Let your body handle it, it’s natural. I do recommend ketone consumption at the start of your keto diet experience and when you want to really capitalize on energy.


ON TO THE RECOMMENDATION

Please let me know how this plan works for you in the comments. Please ask questions in the comments too.


Day 0 – Sunday Night

  • Eat a Keto Dinner that’s low in carbs (no later than 6pm).
  • Drink Water
  • Pee on a test strip (if you’re just getting started, you’re not going to change the color on that little strip). BUT it’s good to see before you get started.

Day 1 – Monday

You’re not going to eat food until 3pm. This is going to give your body the chance to rid itself of as much of its Glycogen stores as possible. Not eating until 3pm is part of this purging process (only part of the process though). It’s going to be tough, the sense of accomplishment alone will be worth it.

You’re also going to need to get in (3) 10 minute sessions of moderate / difficult cardio. You’re going to spread these 10 minute sessions out (from when you wake up – till 3pm). We have an Airdyne and a C2 Rower. We’ll take 5 minutes on the Airdyne followed by another 5 minutes on the C2 – I’m breathing pretty heavy after this exercise. The idea behind this is to encourage your body’s Glycogen stores to be utilized quickly (so we don’t have a long transition phase). If you don’t have a C2 or Airdyne, jog. It’s just 10 minutes, you’ve got this!

Let’s say you wake up at 7am:

  • Drink Water (with a pinch of added, non-processed real salt – no iodine) – Drink as much as you can. Keep it on-hand and readily available – this applies throughout the day.
  • 7:30 (10 Minutes of moderate / difficult cardio)
  • 10:00 (10 Minutes of moderate / difficult cardio)
  • 12:00 (Drink a serving of electrolytes & ketones – see above)
  • 12:15 (10 Minutes of moderate / difficult cardio)
  • 2:59 Pee on a test strip (if you’ve cycled through Ketosis before, you might be in. If not, don’t worry it’s still early).
  • 3:00 Eat a meal rich with dark leafy greens, fatty meat, avocados and healthy oils. Pro tip: add in a serving of MCT oil to whatever you’re eating.
  • You may eat Keto foods from 3pm – 8pm – Track your macros and feel full (don’t over do it). We’re not counting calories and you’re not going to over-indulge.
  • 8pm – It’s water for you! Happy peeing.
  • Before you go to bed (1 serving of electrolytes) – that’s your second serving for the day.
  • Pee on a test strip

Keto Supplements

You were just introduced to three supplements. Here’s what they are:

  1. MCT Oil – Packed with nutritious fats, MCTS are absorbed directly from the gut to the liver, where they are burned quickly for energy.
  2. Ketones – Any reputable ketone supplement will do.
  3. Electrolytes – Calcium, Magnesium, Sodium, & Potassium – learn more about the INCREDIBLE VALUE here.

Day 2 – Tuesday

At this point (or yesterday afternoon after you ate) you may be feeling a bit of churning stomach, that’s okay. If you’ve got a headache at any point, did you consume your electrolytes?

Again, we’ll assume you woke up at 7am.

  • Pee on a test strip
  • Drink Water
  • 12:00 (Drink a serving of electrolytes & ketones)
  • 12:15 (10 Minutes of moderate / difficult cardio)
  • 12:59 Pee on a test strip
  • 1:00 Lunch Time! Eat a meal rich with dark leafy greens and a fatty meat. Check out our Keto recipes for ideas on what to eat. Add in a serving of MCT oil to whatever you’re eating.
  • You may eat Keto foods from 1pm – 8pm – Track your macros and feel full (don’t over do it, we’re not counting calories right now). Counting calories is a great idea to help with accountability but let’s not over-burden this process right now. We’re trying to keep things simple.
  • 8pm – It’s water for you! Happy peeing.
  • Before you go to bed (1 serving of electrolytes)
  • Pee on a test strip

Day 3 – Wednesday

Wednesday will be the same process as Tuesday, and you very might well already be in Ketosis! But in case you are not, here is the protocol to follow:

Again, we’ll assume you woke up at 7am.

  • Pee on a test strip
  • Drink Water
  • 12:00 (Drink a serving of electrolytes & ketones)
  • 12:15 (10 Minutes of moderate / difficult cardio)
  • 12:59 Pee on a test strip
  • 1:00 Lunch Time! Eat a meal rich with dark leafy greens and a fatty meat. Check out our Keto recipes for ideas on what to eat. Add in a serving of MCT oil to whatever you’re eating.
  • You may eat Keto foods from 1pm – 8pm – Track your macros and feel full (don’t over do it).
  • 8pm – It’s water for you! Happy peeing.
  • Before you go to bed (1 serving of electrolytes)
  • Pee on a test strip

Day 4 – Thursday

Your body should already be in ketosis, but in case it’s not, you will be following the same ritual as you did on Day 2:

Again, we’ll assume you woke up at 7am.

  • Pee on a test strip
  • Drink Water
  • 12:00 (Drink a serving of electrolytes & ketones)
  • 12:15 (10 Minutes of moderate / difficult cardio)
  • 12:59 Pee on a test strip
  • 1:00 Lunch Time! Eat a meal rich with dark leafy greens and a fatty meat. Check out our Keto recipes for ideas on what to eat. Add in a serving of MCT oil to whatever you’re eating.
  • You may eat Keto foods from 1pm – 8pm – Track your macros and feel full (don’t over do it).
  • 8pm – It’s water for you! Happy peeing.
  • Before you go to bed (1 serving of electrolytes)
  • Pee on a test strip

Day 5+

Congratulations!  You should be in ketosis, and can now follow a normal keto meal plan.

At his point you may want to start counting calories and macros. There are great calculators online to help you with this.


For more information and tips, here are a few helpful posts:

How to Get in Ketosis Fast

Thanks for visiting and reading!

Please share:

Keto Lump Crab Cake Recipe
Keto Lump Crab Cakes with Horseradish Dip
← Read Last Post
Keto Air-Fried Deviled Eggs
Air-Fried Deviled Eggs
Read Next Post →

Pj

Thursday 7th of October 2021

whats the best way to understand and track macros? what you need

Rob Benson

Thursday 7th of October 2021

Great question! The best way is to download a keto or macro tracking app on your phone (I don't have one to recommend, good idea for a future blog post though) - just read reviews in the app store and find one that you think best fits your needs. Hope that helps!

Janice Bailey

Sunday 3rd of October 2021

Can I use coconut oil instead of Mct oil?

Rob Benson

Monday 4th of October 2021

Yes, however it's not as effective. :)

Sunny

Saturday 27th of March 2021

I lost 5 pounds. The keto meter is perfect. I ate a few carbs like five roasted Rosemary potato slices and an old fashioned at lunch on day 6. When I checked my blood I was down to .8 from 1.0 in the morning. How do you maintain optimal range? Of course not having and old fashioned and potatoes, just in general. I

Rob Benson

Saturday 27th of March 2021

Great question. Two different answers on this: if you're doing therapeutic Ketosis (trying to fix or improve a negative symptom) try to stay in the range of 1.5 to 3.0 mmol. That's ideal for weight loss too. The second answer is: managing blood sugar is more important than tracking ketones. I personally never track ketones, I do however wear a CGM and write about how important blood sugar management is. For me (as a food producer, making Keto products) I have to really know ingredients and understand how they impact blood sugar. When getting started though, understanding where you're at (tracking Ketones) can be very helpful. Hope that helped!

Katie

Thursday 11th of February 2021

Thanks for this clear breakdown, like another commenter above, I need a very clear step by step plan. I do have a question regarding not eating in the morning. I 100% need to have breakfast. I could skip lunch, but when I wake up I usually feel shaky or dizzy, it takes all that I have to get to the kitchen for something. Is there room in this plan to adjust for this? Could I possibly maybe have something small, such as a hard boiled egg? Thanks!

Rob Benson

Monday 15th of February 2021

Great question and absolutely! Alter the schedule just keep paying attention to the amount and the source of the food. You've got this!

vanessa

Monday 1st of February 2021

What do you recommend for ketone supplements?

Rob Benson

Tuesday 2nd of February 2021

I haven't done enough research to suggest a specific brand. Sorry about that! I would look for a lot of great reviews and I would want clean powder (not capsules) - less expensive in raw powder form.