Why Am I Exhausted On A Keto Diet? Understanding The Reality Of Keto Diet!

The Keto diet is the best diet that can be followed for significant weight loss. Also, it does not cause any harm to your body, and there are studies that show it supports neurological, cardiovascular, metabolic, and cellular health. Keto dieting is the process of making your body use fatty acids and ketones as fuel instead of glucose.

But during this period, you feel exhausted because your body is getting adapted to the transformation of fuel from glucose to fat. Once your body gets adapted to the new process, say a few weeks, the fatigue will melt into the air. But still, you are not able to get rid of the tiredness even after a few weeks, it might be some other cause. Let us discuss it in this article.

Causes Of Tiredness During Keto

There are certain causes for the tiredness you feel during keto. If you are able to fix it, you can get the complete benefit of the keto diet.

Causes Of Tiredness During Keto

Keto flu

Keto flu is the main reason for tiredness. As we have already discussed, when your body changes fuel from carbs to fats, your body takes some time to get adapted to it and feels tired and suffers from headaches during this time. This is keto flu and it last just for a few days after that, your body starts to work efficiently by using fat as the main source.


In keto, as you are not intaking carbs, insulin is not released as it has no role. But insulin is the one that helps the kidney to hold electrolytes like sodium, potassium, etc. So, you excrete more water and electrolyte which causes dehydration. So it is better for you to take electrolyte supplements and drink plenty of water during the diet. You can also increase the amount of salt in your food.

Lack of calories

The Keto diet will reduce your appetite and burns a lot of calories from your body, resulting in a noticeable weight loss. But lack of calorie intake may lead to the reduced production of energy hormones like thyroid hormone. Lack of thyroid will make you tired. So try to intake an adequate amount of food.

Intense exercise

It is necessary to practice healthy exercise by following a diet to find a significant result. But some do intense exercise apart from intaking in fewer calories due to low appetite. In such cases, you will feel exhausted since you are not getting the energy required to do the exercise. So try eating calorie-rich food during the diet.

Low-quality keto food

When choosing food during the keto diet, always go for a good quality one. Not all keto food is of good quality. Processed keto food may support your diet but is not good for your health. So instead of consuming pork rinds and sugar-free frosting, it is always better to have fresh vegetables, steak, chicken, or fish which are high-quality protein, and good-quality healthy fats.

Steps To Follow During The Keto Diet

  1. Consume more calories and fat.
  2. Eat regularly say 5-6 times a day.
  3. Avoid bad quality keto-rich food.
  4. Keep an eye on the electrolytes and drink plenty of water.
  5. Move your body regularly by performing the required exercise.
  6. You can talk with your dietician to get a food chart and keto supplement suggestions.


However, the keto diet is the best diet which gives a quick and significant result in weight loss. Increasing your calorie level and drinking plenty of water can help you to keep on track. You must keep on monitoring your calorie intake to raise it to the required level by consuming good-quality food. Moreover, energy is the key indicator of your health and longevity, and the lack of it will definitely lead you to various side effects.

Alina reese
Alina Reese

About the author

Certified Integrative Health Practitioner in Austin, Texas. Specialize in replenishing nutrient deficiencies & digestive health! And also Passionate about improving health literacy in the community, and ensuring quality and accessible services for all.

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