Fat Fasting

There is a practice in the keto community known as “Fat Fasting”.  It is a little misleading because it isn’t really fasting at all, but instead restricting your diet to only high fat foods.  It would more accurately be described as eating a “fat-etarian” diet.

If keto is already a low-carb, high-fat diet, why would you need to “fat fast”?  Well, fat fasting help to accelerate changing your body to be a fat burner.  It also helps to increase appetite suppression, and deepen your ketosis.  And because it helps you become a fat burner, it also will help prepare you for actual fasting.  So it can be used to prepare for an actual fast.   Or if you have strayed of course a little too much recently in your diet, it will help to get you back on track.  Of course it will be far easier to fat fast if you are already keto-adapted.

So what is a fat fast? A fat fast consists of eating lots of fatty foods and trying to steer clear of nuts and dairy. So basically eating the following types of foods:
  • Eggs
  • Bacon
  • Salmon
  • Sardines
  • Healthy oils (olive, coconut, MCT, avocado, macadamia nut)
  • Butter
  • Ghee
  • Avocado
  • Olives
  • Bone Broth
  • Coffee/Tea

If you are finding you have an insatiable appetite, or you are craving sweets or other foods that aren’t the best for you.  It also is a good idea if you’ve a had a cheat day and you want to get back on track quickly.

How long should you fat fast?  It’s up to you, but I find 1-3 days is usually enough.  I will sometimes do a fat fast for the day prior to an extended fast.


One thing you will find is that fatty foods are very filling.  And it doesn’t take very long before you just can’t put another bite into your mouth.



My next post will discuss my next attempt a doing some serious fasting.  You can also read my last blog post which discussed Paprika, a great recipe app.

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