Written by Angela Reviewed by Daniel

How To Get Into Ketosis Fast (Without Feeling Bad)

Achieving ketosis, the state in which your body burns fat for fuel instead of carbohydrates, can be life changing for those following a low carb, high fat diet like keto. When done correctly, ketosis can lead to weight loss, improved energy levels, and even better mental clarity.

Some people also report better focus, reduced cravings, and enhanced endurance during workouts. However, if you start unprepared, you might experience unpleasant side effects like fatigue, headaches, or the dreaded “keto flu.”

The good news? There are simple ways to speed up the process of getting into ketosis while minimising discomfort. By making small but effective tweaks to your diet, exercise routine, and hydration levels, you can transition smoothly and start seeing results faster.

This guide will walk you through the best science backed strategies to achieve ketosis quickly, common mistakes to avoid, and how to ensure you stay in a healthy range.

Table of Contents

Three Ways To Get Into Ketosis Quickly

The key to reaching ketosis fast lies in three main areas: diet, exercise, and fasting. Here’s how to optimise each one.

1. Follow The Right Diet

A low carb diet is essential for ketosis, as it forces your body to burn stored fat for energy. However, simply cutting carbs isn’t enough, you also need to ensure you’re getting the right balance of fats and proteins.

Limit Carbohydrates
Keep your carb intake between 5 to 10% of your daily calories. Be mindful of hidden carbs in condiments like ketchup and honey mustard, which can add up quickly.
Increase Healthy Fats
Aim for 70 to 80% of your calories to come from fats such as nuts, extra virgin olive oil, coconut oil, and fatty fish (salmon, tuna, mackerel, sardines). Eggs are also a great choice, providing both healthy monounsaturated and polyunsaturated fats.
Moderate Protein Intake
Eating too much protein can slow ketosis because excess protein converts to glucose in the body. Stick to moderate portions of high quality protein sources like meat, poultry, and fish.

Tracking your macronutrients using food labels or apps can help you stay on track and avoid hidden pitfalls.

2. Exercise To Deplete Carbohydrate Stores

Physical activity accelerates ketosis by using up stored glycogen (carbohydrate reserves). Once your body depletes its glycogen stores, it starts burning fat for fuel.

Cardio Workouts
Running, cycling or swimming can speed up glycogen depletion.
Strength Training
Weightlifting and resistance exercises help your muscles use up energy, making it easier to switch to fat burning.
Fasted Workouts
Exercising before eating in the morning can push your body into ketosis faster, as glycogen stores are already lower from overnight fasting. However, it’s important to listen to your body, if you feel dizzy or weak, ease up on intense workouts.

3. Try Intermittent Fasting

Intermittent fasting (IF) can speed up ketosis by extending the period in which your body burns fat. Fasting windows typically range from 12 to 40 hours, but for most people, 16 to 18 hours is an effective balance.

Shorter Fasts (12-16 hours)
Ideal for beginners and helps ease the transition into ketosis.
Longer Fasts (24+ hours)
Can speed up ketosis but may cause fatigue or headaches. Stay hydrated and monitor your body’s response.

Pairing fasting with exercise can further accelerate ketosis. One university study found that intense exercise at the start of a fast helped participants enter ketosis over three hours earlier than fasting alone.

Sample Keto Meal Plan

To help you get started, here’s a simple one day keto meal plan:

Breakfast
Scrambled eggs cooked in butter with avocado and smoked salmon.
Lunch
Grilled chicken with spinach, olive oil, and feta cheese.
Snack
A handful of macadamia nuts or almonds.
Dinner
Pan seared salmon with steamed broccoli and a side of cauliflower mash.
Dessert (Optional)
Chia seed pudding with unsweetened coconut milk.

Supplement Recommendations

In addition to a well balanced diet, certain supplements can support ketosis, they include:

Electrolytes
Sodium, potassium, and magnesium help prevent keto flu.
Exogenous Ketones
Can provide an immediate ketone boost.
MCT Oil
Rapidly converts to ketones for quick energy.
Digestive Enzymes
Help process fats more efficiently.

Troubleshooting Keto Flu

If you experience fatigue, headaches, or nausea when transitioning into ketosis, you could be suffering from “keto flu”. Try these remedies:

Increase your salt intake.
Drink plenty of water.
Eat more healthy fats.
Supplement with electrolytes.

These symptoms usually pass within a few days as your body adjusts.

Different Types Of Ketogenic Diets

There are three main types of ketogenic diet, here’s a brief description of each to help you decide which one is right for you;

Standard Keto
The most common approach, focusing on very low carbs and high fat.
Targeted Keto
Allows extra carbs around workouts for better performance.
Cyclical Keto
Involves reintroducing carbs for 1 to 2 days per week to replenish glycogen.

Signs That You’re In Ketosis

person holding a wooden tray with sliced avocados

You’ll know your body has entered ketosis when you notice:

Reduced appetite and fewer cravings.
Increased mental clarity and focus.
A metallic taste or “keto breath.”
More stable energy levels.
Weight loss due to fat burning.

You can also test for ketones using urine test strips or a blood ketone meter for accuracy.

Let’s Wrap Things Up And Get You Into Ketosis Quickly

Getting into ketosis quickly doesn’t have to be a struggle. By making smart dietary choices, incorporating exercise, and considering intermittent fasting, you can ease your body into ketosis without feeling sluggish or unwell.

Avoiding common mistakes, staying hydrated, and incorporating MCT oil will also make the transition smoother. Most importantly, listen to your body and adjust your approach as needed.

With these tips, you can start burning fat efficiently and enjoying the benefits of ketosis in no time! If you found this article helpful, share it with your socials so others can reach ketosis faster as well.

Also, follow us on Pinterest ...